Pub Date : 2026-01-22DOI: 10.1016/j.foodres.2026.118476
Wanyu Yang , Xiaodi Hu , Tianrong Zhang , Ming Zhao , Qiongmin Li , Mengnan Sang , Jinling Fan , Yuan Zhao , Bin Zhang
Royal jelly proteins (RJPs) are rich sources of bioactive peptides with health-promoting functions. This study aimed to identify and characterize angiotensin-I-converting enzyme (ACE) inhibitory peptides derived from the gastrointestinal digest of RJPs using an integrated peptidomics and bioinformatics strategy. A total of 1983 peptides were identified by LC-MS/MS, of which 237 exhibited high predicted bioactivity (PeptideRanker score ≥ 0.8). After in silico screening, 49 soluble bioactive peptides were selected, showing favorable molecular weights, charge properties, and oral bioavailability. Bioactivity profiling suggested multiple functions, with ACE inhibition emerging as the most dominant. Molecular docking confirmed strong ACE binding affinities for all of the selected peptides (−6.9 to −10.9 kcal/mol), surpassing the positive control captopril (−5.6 kcal/mol). Experimental validation showed FRYR and FFRNR possessed strong ACE inhibitory activity, with IC50 values of 608 μmol/L and 684 μmol/L, respectively, lower than many reported food-derived peptides. Kinetic analysis revealed FRYR exhibited mixed-type inhibition, while FFRNR acted competitively. Docking revealed FRYR uniquely coordinated with the Zn2+ catalytic center, explaining its superior potency. Collectively, these results highlight the digest of RJPs as promising sources of natural ACE inhibitors and provide a systematic strategy for bioactive peptide discovery and functional validation.
{"title":"Discovery and mechanistic insights into ACE inhibitory peptides from the gastrointestinal digest of royal jelly proteins: peptidomics, bioactivity profiling, in silico screening, and in vitro validation","authors":"Wanyu Yang , Xiaodi Hu , Tianrong Zhang , Ming Zhao , Qiongmin Li , Mengnan Sang , Jinling Fan , Yuan Zhao , Bin Zhang","doi":"10.1016/j.foodres.2026.118476","DOIUrl":"10.1016/j.foodres.2026.118476","url":null,"abstract":"<div><div>Royal jelly proteins (RJPs) are rich sources of bioactive peptides with health-promoting functions. This study aimed to identify and characterize angiotensin-I-converting enzyme (ACE) inhibitory peptides derived from the gastrointestinal digest of RJPs using an integrated peptidomics and bioinformatics strategy. A total of 1983 peptides were identified by LC-MS/MS, of which 237 exhibited high predicted bioactivity (PeptideRanker score ≥ 0.8). After <em>in silico</em> screening, 49 soluble bioactive peptides were selected, showing favorable molecular weights, charge properties, and oral bioavailability. Bioactivity profiling suggested multiple functions, with ACE inhibition emerging as the most dominant. Molecular docking confirmed strong ACE binding affinities for all of the selected peptides (−6.9 to −10.9 kcal/mol), surpassing the positive control captopril (−5.6 kcal/mol). Experimental validation showed FRYR and FFRNR possessed strong ACE inhibitory activity, with IC<sub>50</sub> values of 608 μmol/L and 684 μmol/L, respectively, lower than many reported food-derived peptides. Kinetic analysis revealed FRYR exhibited mixed-type inhibition, while FFRNR acted competitively. Docking revealed FRYR uniquely coordinated with the Zn<sup>2+</sup> catalytic center, explaining its superior potency. Collectively, these results highlight the digest of RJPs as promising sources of natural ACE inhibitors and provide a systematic strategy for bioactive peptide discovery and functional validation.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118476"},"PeriodicalIF":8.0,"publicationDate":"2026-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118497
Ros Azlinawati Ramli
Biodegradable polymer-based food packaging has advanced rapidly in recent years, driven by the need to reduce reliance on conventional plastics while ensuring food safety, shelf-life extension, and environmental sustainability. This review examines the current state of biodegradable packaging through a focused analysis of material families, fabrication techniques, functional performance, and environmental life cycle considerations. It highlights recent progress in solution-based, thermomechanical, and electrospinning methods that enable tunable mechanical strength, gas - moisture barrier control, antimicrobial and intelligent sensing functionalities. Particular emphasis is placed on emerging strategies such as nanofiller reinforcement, green crosslinking chemistry, hybrid multilayer architectures, and real-time spoilage indicators. These approaches collectively narrow the performance gap with petroleum-based plastics. The review also synthesizes recent life cycle assessment findings, identifying key bottlenecks associated with processing energy demand, end-of-life variability, material contamination, and regulatory constraints. Together, these insights provide an updated perspective on technological trendsand persistent challenges. Uture directions are also needed to transition biodegradable polymers from experimental innovation to scalable, commercially viable, and environmentally responsible food packaging solutions.
{"title":"A critical review of biodegradable polymers for food packaging: Enhancing functionality and environmental sustainability","authors":"Ros Azlinawati Ramli","doi":"10.1016/j.foodres.2026.118497","DOIUrl":"10.1016/j.foodres.2026.118497","url":null,"abstract":"<div><div>Biodegradable polymer-based food packaging has advanced rapidly in recent years, driven by the need to reduce reliance on conventional plastics while ensuring food safety, shelf-life extension, and environmental sustainability. This review examines the current state of biodegradable packaging through a focused analysis of material families, fabrication techniques, functional performance, and environmental life cycle considerations. It highlights recent progress in solution-based, thermomechanical, and electrospinning methods that enable tunable mechanical strength, gas - moisture barrier control, antimicrobial and intelligent sensing functionalities. Particular emphasis is placed on emerging strategies such as nanofiller reinforcement, green crosslinking chemistry, hybrid multilayer architectures, and real-time spoilage indicators. These approaches collectively narrow the performance gap with petroleum-based plastics. The review also synthesizes recent life cycle assessment findings, identifying key bottlenecks associated with processing energy demand, end-of-life variability, material contamination, and regulatory constraints. Together, these insights provide an updated perspective on technological trendsand persistent challenges. Uture directions are also needed to transition biodegradable polymers from experimental innovation to scalable, commercially viable, and environmentally responsible food packaging solutions.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118497"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118470
Yuankai Wang , Xiaoling He , Yuyao Chen , Jianquan Kan , Muying Du , Krisztina Takács , Zsolt Zalán , Tian Cai , Kewei Chen
Lutein's bioaccessibility varies between infant formula (IF) and milk and among lactation stages, and controlling its micellization in matrices and the benefits colostrum (CM) at equal lutein pre-digestion levels remain unaddressed. Hence, this study used an infant-relevant dynamic in vitro gastrointestinal model to equalize lutein levels in digestive fluids, compare digesta's and mixed micelles' physicochemical stability, and investigate release dynamics in CM, mature milk, and IF. Untargeted and targeted omics profiling of micellar fractions was then conducted. IF exhibited >20% lutein loss, which was twice that of human milk at matched lutein concentration. CM showed the highest micellization efficiency and lutein bioaccessibility, and five amino acids and six lipids were enriched in CM-derived micelles. These results suggest that functional molecules enhance lutein delivery and human-milk matrices facilitate lipophilic nutrient delivery, providing a foundation for next-generation IF fortification strategies.
{"title":"Colostrum-specific amino acids and lipids elevating lutein bioaccessibility at the micellization stage relative to mature milk and infant formula","authors":"Yuankai Wang , Xiaoling He , Yuyao Chen , Jianquan Kan , Muying Du , Krisztina Takács , Zsolt Zalán , Tian Cai , Kewei Chen","doi":"10.1016/j.foodres.2026.118470","DOIUrl":"10.1016/j.foodres.2026.118470","url":null,"abstract":"<div><div>Lutein's bioaccessibility varies between infant formula (IF) and milk and among lactation stages, and controlling its micellization in matrices and the benefits colostrum (CM) at equal lutein pre-digestion levels remain unaddressed. Hence, this study used an infant-relevant dynamic <em>in vitro</em> gastrointestinal model to equalize lutein levels in digestive fluids, compare digesta's and mixed micelles' physicochemical stability, and investigate release dynamics in CM, mature milk, and IF. Untargeted and targeted omics profiling of micellar fractions was then conducted. IF exhibited >20% lutein loss, which was twice that of human milk at matched lutein concentration. CM showed the highest micellization efficiency and lutein bioaccessibility, and five amino acids and six lipids were enriched in CM-derived micelles. These results suggest that functional molecules enhance lutein delivery and human-milk matrices facilitate lipophilic nutrient delivery, providing a foundation for next-generation IF fortification strategies.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118470"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118494
Weisheng Wang , Min Lv , Zhide Ruan , Jikun Pang , Qiyun Qin , Chuanyan Pan , Weihao Wei , Hui Wang , Xu Luo , Huawei Ma , Guangzheng Jiang
Fried foods are susceptible to quality deterioration and heterocyclic amine (HCA) formation during high-temperature processing. Conventional antioxidants have limited efficacy, and research on improving the performance of natural antioxidants through photodynamic modification is insufficient. In this study, gallic acid (GA) was irradiated with 225 nm ultraviolet C (UVC) for 6 h to prepare UVC-modified gallic acid (UVC-GA). The effects of UVC-GA on the quality and cytotoxicity of fried squid surimi were then investigated. Results demonstrated that gallic acid was converted into naphthoquinone, o-benzoquinone, and benzoquinone compounds. Compared with unmodified GA, UVC-GA reduced the frying loss by 51.73% and maintained the moisture content at 52.64%. Meanwhile, it improved the tenderness (35.28 N) and color of the product, enhanced the textural properties, and exhibited superior performance over the other seven antioxidants tested. At a concentration of 0.01%, UVC-GA decreased the cytotoxicity against three cell lines (HepG2, HEK293, and SW480) by 40%–60% compared with unmodified GA, indicating preliminary application safety potential based on in vitro experimental data. This study reveals the excellent performance of UVC-GA and provides a scientific basis for the application of modified natural antioxidants in high temperature processed foods. Undeniably, this study has limitations. The conversion rate of GA to quinones is limited, and the cytotoxicity assessment was based solely on in vitro experiments without long-term exposure observation and indicators of cellular barrier function. Therefore, it cannot reflect the metabolic process of UVC-GA in living organisms or the safety of long term intake.
{"title":"Effects of UVC-modified gallic acid (UVC-GA) on the quality and cytotoxicity of squid surimi","authors":"Weisheng Wang , Min Lv , Zhide Ruan , Jikun Pang , Qiyun Qin , Chuanyan Pan , Weihao Wei , Hui Wang , Xu Luo , Huawei Ma , Guangzheng Jiang","doi":"10.1016/j.foodres.2026.118494","DOIUrl":"10.1016/j.foodres.2026.118494","url":null,"abstract":"<div><div>Fried foods are susceptible to quality deterioration and heterocyclic amine (HCA) formation during high-temperature processing. Conventional antioxidants have limited efficacy, and research on improving the performance of natural antioxidants through photodynamic modification is insufficient. In this study, gallic acid (GA) was irradiated with 225 nm ultraviolet C (UVC) for 6 h to prepare UVC-modified gallic acid (UVC-GA). The effects of UVC-GA on the quality and cytotoxicity of fried squid surimi were then investigated. Results demonstrated that gallic acid was converted into naphthoquinone, o-benzoquinone, and benzoquinone compounds. Compared with unmodified GA, UVC-GA reduced the frying loss by 51.73% and maintained the moisture content at 52.64%. Meanwhile, it improved the tenderness (35.28 N) and color of the product, enhanced the textural properties, and exhibited superior performance over the other seven antioxidants tested. At a concentration of 0.01%, UVC-GA decreased the cytotoxicity against three cell lines (HepG2, HEK293, and SW480) by 40%–60% compared with unmodified GA, indicating preliminary application safety potential based on in vitro experimental data. This study reveals the excellent performance of UVC-GA and provides a scientific basis for the application of modified natural antioxidants in high temperature processed foods. Undeniably, this study has limitations. The conversion rate of GA to quinones is limited, and the cytotoxicity assessment was based solely on in vitro experiments without long-term exposure observation and indicators of cellular barrier function. Therefore, it cannot reflect the metabolic process of UVC-GA in living organisms or the safety of long term intake.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118494"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118350
Karolina Kowalska , Eszter Borsos , Elisabeth Varga , Doris Marko
A hyperglycemic condition, characterized by high glucose concentration in the bloodstream, is one of the most potent dietary risk factors for colorectal cancer (CRC). It regulates the response to oxidative stress, migration, and invasion of CRC cells, as well as affects the integrity of the intestinal barrier, which plays a pivotal role in protecting against chemicals and contaminants present in the diet.
Although the molecular mechanisms underlying the toxicity of the mycotoxins deoxynivalenol (DON) and alternariol (AOH) are quite well-known, no research so far has considered the possibility that high glucose concentration might affect the response of CRC cells to mycotoxins. In this study, we evaluated how high glucose condition (50 mmol/L) modulates the effect of two mycotoxins distinct in toxicity and underlying mechanisms: DON (0.1–1 μmol/L) and AOH (0.1–20 μmol/L). We evaluated the migration and invasion in Caco-2 and HT-29 CRC cell lines, impact on barrier integrity and metabolism of mycotoxins in an intestinal in vitro co-culture model comprising Caco-2/HT-29-MTX-E12/CCD-18Co. Our results showed that high glucose concentration indeed modulates the response of CRC cells to mycotoxins, affecting their metabolism and altering the cellular sensitivity towards them. This observation shed new light on the importance of the involvement of different physiological and pathological conditions when considering the toxicity of mycotoxins.
{"title":"Hyperglycemic conditions modulate the response of colon cancer cells to the mycotoxins alternariol and deoxynivalenol in vitro","authors":"Karolina Kowalska , Eszter Borsos , Elisabeth Varga , Doris Marko","doi":"10.1016/j.foodres.2026.118350","DOIUrl":"10.1016/j.foodres.2026.118350","url":null,"abstract":"<div><div>A hyperglycemic condition, characterized by high glucose concentration in the bloodstream, is one of the most potent dietary risk factors for colorectal cancer (CRC). It regulates the response to oxidative stress, migration, and invasion of CRC cells, as well as affects the integrity of the intestinal barrier, which plays a pivotal role in protecting against chemicals and contaminants present in the diet.</div><div>Although the molecular mechanisms underlying the toxicity of the mycotoxins deoxynivalenol (DON) and alternariol (AOH) are quite well-known, no research so far has considered the possibility that high glucose concentration might affect the response of CRC cells to mycotoxins. In this study, we evaluated how high glucose condition (50 mmol/L) modulates the effect of two mycotoxins distinct in toxicity and underlying mechanisms: DON (0.1–1 μmol/L) and AOH (0.1–20 μmol/L). We evaluated the migration and invasion in Caco-2 and HT-29 CRC cell lines, impact on barrier integrity and metabolism of mycotoxins in an intestinal <em>in vitro</em> co-culture model comprising Caco-2/HT-29-MTX-E12/CCD-18Co. Our results showed that high glucose concentration indeed modulates the response of CRC cells to mycotoxins, affecting their metabolism and altering the cellular sensitivity towards them. This observation shed new light on the importance of the involvement of different physiological and pathological conditions when considering the toxicity of mycotoxins.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118350"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118493
Xiaonan Yan , Hang Yuan , Yuehang Yang , Tian Zhou , Dongyan Zhou , Jianxin Tan , Jian Li , Dabing Xiang , Changying Liu , Yuanmou Tang , Xiaoqin Zheng , Lianxin Peng , Liang Zou , Yuanhang Ren , Yan Wan
Black highland barley (BHB) is a distinctive grain from the Qinghai-Tibet Plateau. It is recognized for its exceptional nutritional value and bioactive components, which align with contemporary healthy dietary trends, attracting global attention. Compared to common HB, BHB generally possesses higher nutritional content, with abundant levels of β-glucan and phenolic compounds, which endow it with multiple physiological functions, rendering it a raw material for modern health-oriented diets. Nevertheless, its potential for food processing and development remains underutilized. A thorough understanding of the nutritional and functional components of BHB is essential for promoting its high-value utilization. This paper systematically integrates information on the composition and physicochemical properties of the major nutrients in BHB. It elucidates their potential functional benefits for human health, such as mitigating hypertension, hyperlipidemia, and hyperglycemia, as well as providing antioxidant effects. Additionally, it summarizes the current applications of BHB in everyday diets, including flour products, BHB wine, and functional foods. It organizes various production and processing technologies to maximize nutritional functionality and enhance processing efficiency. This paper aims to highlight the rich nutritional functional value of BHB and its health potential, thereby demonstrating the feasibility of developing more BHB-based nutritional functional products to meet growing consumer demand for nutritionally functional cereal foods.
{"title":"Black highland barley as a characteristic grain of the Qinghai-Tibet Plateau: profile on its nutritional functional properties and food processing applications","authors":"Xiaonan Yan , Hang Yuan , Yuehang Yang , Tian Zhou , Dongyan Zhou , Jianxin Tan , Jian Li , Dabing Xiang , Changying Liu , Yuanmou Tang , Xiaoqin Zheng , Lianxin Peng , Liang Zou , Yuanhang Ren , Yan Wan","doi":"10.1016/j.foodres.2026.118493","DOIUrl":"10.1016/j.foodres.2026.118493","url":null,"abstract":"<div><div>Black highland barley (BHB) is a distinctive grain from the Qinghai-Tibet Plateau. It is recognized for its exceptional nutritional value and bioactive components, which align with contemporary healthy dietary trends, attracting global attention. Compared to common HB, BHB generally possesses higher nutritional content, with abundant levels of β-glucan and phenolic compounds, which endow it with multiple physiological functions, rendering it a raw material for modern health-oriented diets. Nevertheless, its potential for food processing and development remains underutilized. A thorough understanding of the nutritional and functional components of BHB is essential for promoting its high-value utilization. This paper systematically integrates information on the composition and physicochemical properties of the major nutrients in BHB. It elucidates their potential functional benefits for human health, such as mitigating hypertension, hyperlipidemia, and hyperglycemia, as well as providing antioxidant effects. Additionally, it summarizes the current applications of BHB in everyday diets, including flour products, BHB wine, and functional foods. It organizes various production and processing technologies to maximize nutritional functionality and enhance processing efficiency. This paper aims to highlight the rich nutritional functional value of BHB and its health potential, thereby demonstrating the feasibility of developing more BHB-based nutritional functional products to meet growing consumer demand for nutritionally functional cereal foods.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118493"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118474
Rui He , Xiaomeng Ma , Ju Chen , Chengrong Zheng , Dingwu Zhang , Chong Liu , Jing Hong , Binghua Sun , Mei Liu , Jiaying Shang , Zipeng Liu , Xueling Zheng
Sugar alcohols are characterized by anti-caries properties, low glycemic response, low calorie value and non-participation in the Maillard reaction. Our preliminary experimental demonstrated that erythritol (ET), xylitol (XT), and lactitol (LT) significantly reduce the oil content of fried instant noodles, though the mechanism was unclear. This study therefore aimed to elucidate how these sugar alcohols reduce oil content by examining the alterations in oil distribution, pore characteristics, and molecular structures of starch and protein from macro-, micro-, and molecular levels. Low-field nuclear magnetic resonance and magnetic resonance imaging confirmed that sugar alcohols effectively lowered the fat content and reduced the macroscopic oil distribution within instant noodles. Sugar alcohols increased the contact angle between oil and the dough sheet, thereby decreasing oil wettability and spreading capacity. The incorporation of sugar alcohols also reduced the surface roughness of instant noodles, yielding a more compact internal structure with lower open porosity and total porosity. This relatively intact, less porous microstructure formed an effective physical barrier, inhibiting oil absorption and penetration, and consequently reducing the fat content of instant noodles. The Fourier transform infrared spectra of starch demonstrated that sugar alcohols significantly intensified the peak at 1653 cm−1, indicating enhanced hydrogen bonding within the system. Furthermore, the addition of sugar alcohols promoted a more tightly packed molecular arrangement of starch during frying, which consequently reduced starch's capacity for oil absorption and limited the formation of starch-lipid complexes. Additionally, sugar alcohols enhanced the β-sheet content, suggesting an improved secondary structure of protein.
{"title":"The mechanism of reducing the oil content of fried instant noodles by adding sugar alcohol: microstructure, surface properties and molecular structure","authors":"Rui He , Xiaomeng Ma , Ju Chen , Chengrong Zheng , Dingwu Zhang , Chong Liu , Jing Hong , Binghua Sun , Mei Liu , Jiaying Shang , Zipeng Liu , Xueling Zheng","doi":"10.1016/j.foodres.2026.118474","DOIUrl":"10.1016/j.foodres.2026.118474","url":null,"abstract":"<div><div>Sugar alcohols are characterized by anti-caries properties, low glycemic response, low calorie value and non-participation in the Maillard reaction. Our preliminary experimental demonstrated that erythritol (ET), xylitol (XT), and lactitol (LT) significantly reduce the oil content of fried instant noodles, though the mechanism was unclear. This study therefore aimed to elucidate how these sugar alcohols reduce oil content by examining the alterations in oil distribution, pore characteristics, and molecular structures of starch and protein from macro-, micro-, and molecular levels. Low-field nuclear magnetic resonance and magnetic resonance imaging confirmed that sugar alcohols effectively lowered the fat content and reduced the macroscopic oil distribution within instant noodles. Sugar alcohols increased the contact angle between oil and the dough sheet, thereby decreasing oil wettability and spreading capacity. The incorporation of sugar alcohols also reduced the surface roughness of instant noodles, yielding a more compact internal structure with lower open porosity and total porosity. This relatively intact, less porous microstructure formed an effective physical barrier, inhibiting oil absorption and penetration, and consequently reducing the fat content of instant noodles. The Fourier transform infrared spectra of starch demonstrated that sugar alcohols significantly intensified the peak at 1653 cm<sup>−1</sup>, indicating enhanced hydrogen bonding within the system. Furthermore, the addition of sugar alcohols promoted a more tightly packed molecular arrangement of starch during frying, which consequently reduced starch's capacity for oil absorption and limited the formation of starch-lipid complexes. Additionally, sugar alcohols enhanced the β-sheet content, suggesting an improved secondary structure of protein.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118474"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118492
Chuyao Deng , Jiaxin Zheng , Fei Xu , Fengyi Hong , Minmin Zhan , Qi Chen , Ye Peng , Yong Cao , Jie Xiao , Yongcheng Liao , Hang Xiao , Mingyue Song
Type 2 diabetes mellitus (T2DM) poses a major health and socioeconomic challenge, and long-term use of conventional hypoglycemic agents often causes adverse effects such as impaired gastrointestinal function. Natural polysaccharides have emerged as promising alternatives due to their safety and bioactivity. In this study, polysaccharides from raw Polygonatum cyrtonema Hua (RPCP) and processed Polygonatum cyrtonema Hua (PPCP) were successfully extracted using enzyme-assisted hot water extraction. The purified fractions of RPCP (RPCP-P) and PPCP (PPCP-P) were structurally characterized by molecular weight determination, monosaccharide composition, FT-IR, methylation, and NMR analyses. Their hypoglycemic effects and underlying mechanisms were evaluated in high-fat diet and streptozotocin-induced T2DM mice. Both RPCP and PPCP significantly reduced fasting blood glucose, improved insulin sensitivity, and ameliorated lipid metabolism disorders. Mechanistically, the polysaccharides modulated gut microbiota composition, promoted short-chain fatty acid (SCFA) production, upregulated colonic GPR41/43 expression, and increased glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) secretion, thereby improving glucose homeostasis. Notably, PPCP exhibited superior antidiabetic effects to those of RPCP, which we attribute to its greater molecular heterogeneity and galactan-rich structure, suggesting that traditional steaming enhances polysaccharide bioactivity. These findings demonstrate that traditional processing enhances the functionality of Polygonatum cyrtonema polysaccharides through structure-dependent modulation of the gut microbiota–SCFA–host metabolic axis, providing a scientific basis for their development as functional food ingredients for glycemic regulation.
{"title":"Processing-induced structural remodeling enhances the hypoglycemic activity of Polygonatum cyrtonema Hua polysaccharides via gut microbiota-SCFA-GPR41/43 pathway","authors":"Chuyao Deng , Jiaxin Zheng , Fei Xu , Fengyi Hong , Minmin Zhan , Qi Chen , Ye Peng , Yong Cao , Jie Xiao , Yongcheng Liao , Hang Xiao , Mingyue Song","doi":"10.1016/j.foodres.2026.118492","DOIUrl":"10.1016/j.foodres.2026.118492","url":null,"abstract":"<div><div>Type 2 diabetes mellitus (T2DM) poses a major health and socioeconomic challenge, and long-term use of conventional hypoglycemic agents often causes adverse effects such as impaired gastrointestinal function. Natural polysaccharides have emerged as promising alternatives due to their safety and bioactivity. In this study, polysaccharides from raw <em>Polygonatum cyrtonema</em> Hua (RPCP) and processed <em>Polygonatum cyrtonema</em> Hua (PPCP) were successfully extracted using enzyme-assisted hot water extraction. The purified fractions of RPCP (RPCP-P) and PPCP (PPCP-P) were structurally characterized by molecular weight determination, monosaccharide composition, FT-IR, methylation, and NMR analyses. Their hypoglycemic effects and underlying mechanisms were evaluated in high-fat diet and streptozotocin-induced T2DM mice. Both RPCP and PPCP significantly reduced fasting blood glucose, improved insulin sensitivity, and ameliorated lipid metabolism disorders. Mechanistically, the polysaccharides modulated gut microbiota composition, promoted short-chain fatty acid (SCFA) production, upregulated colonic GPR41/43 expression, and increased glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) secretion, thereby improving glucose homeostasis. Notably, PPCP exhibited superior antidiabetic effects to those of RPCP, which we attribute to its greater molecular heterogeneity and galactan-rich structure, suggesting that traditional steaming enhances polysaccharide bioactivity. These findings demonstrate that traditional processing enhances the functionality of <em>Polygonatum cyrtonema</em> polysaccharides through structure-dependent modulation of the gut microbiota–SCFA–host metabolic axis, providing a scientific basis for their development as functional food ingredients for glycemic regulation.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118492"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118496
Diala Damen , Hairati Aboubacar , Aurore Cournoyer , Mathieu Bazinet , Juan de Toro-Martín , Sami Gaaloul , Safia Hamoudi , Benoit Cudennec , Laurent Bazinet
Dairy white wastewater (WW), a by-product of industrial cleaning processes, contains residual milk proteins that can be enzymatically converted into bioactive peptides. In this study, WW proteins were hydrolyzed using four enzymes, pepsin, trypsin, thermolysin, and pronase E, for up to 240 min, and the resulting hydrolysates were evaluated for ACE inhibition, DPP-IV inhibition, and antioxidant capacity. Thermolysin hydrolysates exhibited the strongest ACE inhibition, with IC50 values as low as 21.0 μg protein/mL, whereas pepsin and pronase E hydrolysates showed DPP-IV inhibitory activities with IC50 values of 2.4–3.1 mg protein/mL. Pepsin hydrolysates presented the highest antioxidant capacity, reaching 3.5 μM Trolox equivalents/mg protein. LC-MS/MS analysis combined with multivariate statistics identified 60 discriminant peptides, including 17 peptides previously reported to possess antihypertensive, antidiabetic, and/or antioxidant bioactivities. Based on a combination of PLS-DA loadings, QSAR scores, novelty relative to known bioactive peptides and physicochemical diversity, 20 peptides were synthesized and validated experimentally. Several peptides such as LRF, QW, GAWY, PPF, GPIVL, and SFNPTQL exhibited potent inhibitory effects, with micromolar IC50 values for ACE and/or DPP-IV. In comparison to chemically synthesized ACE inhibitors like captopril, the most potent peptide, LRF, is five times more active on a molar basis (11.34 μM vs 63.06 μM). These findings demonstrate that WW is a promising source of multifunctional peptides and that integrating peptidomics with machine learning accelerates peptide discovery and validation.
{"title":"Identification of antihypertensive, antidiabetic, and antioxidant peptides derived from hydrolysates of dairy white wastewaters containing milk proteins using machine learning insights","authors":"Diala Damen , Hairati Aboubacar , Aurore Cournoyer , Mathieu Bazinet , Juan de Toro-Martín , Sami Gaaloul , Safia Hamoudi , Benoit Cudennec , Laurent Bazinet","doi":"10.1016/j.foodres.2026.118496","DOIUrl":"10.1016/j.foodres.2026.118496","url":null,"abstract":"<div><div>Dairy white wastewater (WW), a by-product of industrial cleaning processes, contains residual milk proteins that can be enzymatically converted into bioactive peptides. In this study, WW proteins were hydrolyzed using four enzymes, pepsin, trypsin, thermolysin, and pronase E, for up to 240 min, and the resulting hydrolysates were evaluated for ACE inhibition, DPP-IV inhibition, and antioxidant capacity. Thermolysin hydrolysates exhibited the strongest ACE inhibition, with IC<sub>50</sub> values as low as 21.0 μg protein/mL, whereas pepsin and pronase E hydrolysates showed DPP-IV inhibitory activities with IC<sub>50</sub> values of 2.4–3.1 mg protein/mL. Pepsin hydrolysates presented the highest antioxidant capacity, reaching 3.5 μM Trolox equivalents/mg protein. LC-MS/MS analysis combined with multivariate statistics identified 60 discriminant peptides, including 17 peptides previously reported to possess antihypertensive, antidiabetic, and/or antioxidant bioactivities. Based on a combination of PLS-DA loadings, QSAR scores, novelty relative to known bioactive peptides and physicochemical diversity, 20 peptides were synthesized and validated experimentally. Several peptides such as LRF, QW, GAWY, PPF, GPIVL, and SFNPTQL exhibited potent inhibitory effects, with micromolar IC<sub>50</sub> values for ACE and/or DPP-IV. In comparison to chemically synthesized ACE inhibitors like captopril, the most potent peptide, LRF, is five times more active on a molar basis (11.34 μM <em>vs</em> 63.06 μM). These findings demonstrate that WW is a promising source of multifunctional peptides and that integrating peptidomics with machine learning accelerates peptide discovery and validation.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118496"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-21DOI: 10.1016/j.foodres.2026.118489
Yuan-Yuan Ma , Ying Gao , Nan Han , Kai Zhao , Julieta Domínguez-Soberanes , Jorge A. Zegbe , Fang Wang , Jian-Xin Chen , Wan-Ping Fang , Yong-Quan Xu
Extraction efficiency critically dictates tea flavor, yet strategies to overcome the inherent physical extraction barriers of diverse tea leaf matrices remain limited. This study introduced instant steam-priming as a novel pre-brewing technique, systematically evaluating its impact on six tea categories (green, white, yellow, oolong, black and dark) over durations of 0, 5, 10 and 20 s. By integrating sensory evaluation, non-targeted metabolomics, kinetic modeling, and scanning electron microscopy, the mechanism driven by transient steam thermal effects induced by instant steam-priming was elucidated through a clear hierarchical pathway. Structurally, the latent heat of steam physically dismantled the leaf's hydrophobic cuticle and cellular matrix, creating micro-fissures. This physical disruption triggered the kinetic shift, transforming the extraction behavior from slow diffusion to rapid erosion-controlled release, evidenced by a significant surge in kinetic rate constants. Consequently, this accelerated mass transfer modulated flavor in a matrix-dependent manner. For instance, dark tea treated with 10 s steam-priming significantly enhanced its stale and mellow profile, a phenomenon linked to the increased extraction of key flavor metabolites, such as gallic acid derivatives. This research clarifies the relationship between structure, kinetics, and flavor, providing a theoretical basis for the development of intelligent extraction processes for smart brewing devices and ready-to-drink tea beverages.
{"title":"Instant steam-priming as a novel pre-brewing strategy: Unraveling the metabolomic basis for modulating taste attributes across six tea categories","authors":"Yuan-Yuan Ma , Ying Gao , Nan Han , Kai Zhao , Julieta Domínguez-Soberanes , Jorge A. Zegbe , Fang Wang , Jian-Xin Chen , Wan-Ping Fang , Yong-Quan Xu","doi":"10.1016/j.foodres.2026.118489","DOIUrl":"10.1016/j.foodres.2026.118489","url":null,"abstract":"<div><div>Extraction efficiency critically dictates tea flavor, yet strategies to overcome the inherent physical extraction barriers of diverse tea leaf matrices remain limited. This study introduced instant steam-priming as a novel pre-brewing technique, systematically evaluating its impact on six tea categories (green, white, yellow, oolong, black and dark) over durations of 0, 5, 10 and 20 s. By integrating sensory evaluation, non-targeted metabolomics, kinetic modeling, and scanning electron microscopy, the mechanism driven by transient steam thermal effects induced by instant steam-priming was elucidated through a clear hierarchical pathway. Structurally, the latent heat of steam physically dismantled the leaf's hydrophobic cuticle and cellular matrix, creating micro-fissures. This physical disruption triggered the kinetic shift, transforming the extraction behavior from slow diffusion to rapid erosion-controlled release, evidenced by a significant surge in kinetic rate constants. Consequently, this accelerated mass transfer modulated flavor in a matrix-dependent manner. For instance, dark tea treated with 10 s steam-priming significantly enhanced its stale and mellow profile, a phenomenon linked to the increased extraction of key flavor metabolites, such as gallic acid derivatives. This research clarifies the relationship between structure, kinetics, and flavor, providing a theoretical basis for the development of intelligent extraction processes for smart brewing devices and ready-to-drink tea beverages.</div></div>","PeriodicalId":323,"journal":{"name":"Food Research International","volume":"229 ","pages":"Article 118489"},"PeriodicalIF":8.0,"publicationDate":"2026-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}