Pub Date : 2025-12-01Epub Date: 2025-12-15DOI: 10.1016/j.ocsci.2025.07.002
Zhenxia Xu , Yi Zhang , Yi Zhong , Weijuan Su , Minghao Liu , Xia Xiang , Yangmin Gong
Camellia oleifera cake (COC), a nutrient-rich by-product of tea oil extraction, holds promise as a high-quality protein source but is limited in feed applications due to anti-nutritional factors, mainly tea saponins and crude fiber. This study employed solid-state fermentation using a compound microbial agent combined with cellulase to enhance COC's palatability and nutritional value. Single-strain fermentation identified Lactiplantibacillus plantarum as most effective in degrading tea saponins (46.0%) without reducing crude fiber. Optimal conditions were 0.1% inoculum, 48 h at 37 °C, with 20% sugar. For cellulase hydrolysis, the best parameters were: 50 U/g enzyme, 50 °C, 8 h, using 40-mesh sieved substrate. Combined fermentation began with enzymatic treatment followed by inoculation with a 1: 1: 1: 1: 1: 1 mixture of Saccharomyces cerevisiae (two strains), Lactiplantibacillus plantarum, Bacillus subtilis, Bacillus coagulans, and Lactobacillus acidophilus. The optimized conditions (0.1% inoculum, 7 days, 37 °C, 20% sugar, 50% moisture) significantly reduced anti-nutritional components and improved protein content, indicating the potential of fermented COC as a viable feed ingredient.
{"title":"Effects of compound microbial agents and cellulase on the fermentation quality and nutritional characteristics of Camellia oleifera cake","authors":"Zhenxia Xu , Yi Zhang , Yi Zhong , Weijuan Su , Minghao Liu , Xia Xiang , Yangmin Gong","doi":"10.1016/j.ocsci.2025.07.002","DOIUrl":"10.1016/j.ocsci.2025.07.002","url":null,"abstract":"<div><div><em>Camellia oleifera</em> cake (COC), a nutrient-rich by-product of tea oil extraction, holds promise as a high-quality protein source but is limited in feed applications due to anti-nutritional factors, mainly tea saponins and crude fiber. This study employed solid-state fermentation using a compound microbial agent combined with cellulase to enhance COC's palatability and nutritional value. Single-strain fermentation identified <em>Lactiplantibacillus plantarum</em> as most effective in degrading tea saponins (46.0%) without reducing crude fiber. Optimal conditions were 0.1% inoculum, 48 h at 37 °C, with 20% sugar. For cellulase hydrolysis, the best parameters were: 50 U/g enzyme, 50 °C, 8 h, using 40-mesh sieved substrate. Combined fermentation began with enzymatic treatment followed by inoculation with a 1: 1: 1: 1: 1: 1 mixture of <em>Saccharomyces cerevisiae</em> (two strains), <em>Lactiplantibacillus plantarum</em>, <em>Bacillus subtilis</em>, <em>Bacillus coagulans</em>, and <em>Lactobacillus acidophilus</em>. The optimized conditions (0.1% inoculum, 7 days, 37 °C, 20% sugar, 50% moisture) significantly reduced anti-nutritional components and improved protein content, indicating the potential of fermented COC as a viable feed ingredient.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 4","pages":"Pages 286-293"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soybean is a vital nutritional resource rich in protein, oil, vitamins, and minerals, serving as a leading global source of vegetable oil and helping combat undernourishment, especially in developing countries like Cameroon, where over 24 % of the population faces food insecurity. However, insufficient nutrients can severely hinder the formation of fruiting bodies, resulting in yields as low as one ton per hectare. This study explores the potential of enhancing nitrogen nutrition through Rhizobium bacteria to improve nodulation rates and overall soybean productivity. The objective was to assess the effects of various Rhizobium isolates on the productivity, physicochemical properties, and nutritional quality of soybeans, essential for agricultural development and food security. The experiment was carried out at IRAD Mbalmayo from March–July and September–November 2022. The experimental set-up was a completely randomized block design replicated thrice. Each replicate consisted of three elementary plots separated by 1 m. Crops were planted at 50 cm between rows and 10 cm between plants. Five treatments: control (S0), Rhizobium isolate No.1 (S1), Rhizobium isolate No.2 (S2), NoduMax (S3), NPK: 20-10-10 (S4), were applied to three varieties: V1 (TGX 1910–14F), V2 (MAKSOY 4N), V3 (TGX 1835 10E). Results showed that seed emergence rates varied from 69% to 99% among soybean varieties, with no significant differences across treatments. Notably, Rhizobium inoculation, particularly with isolate 2, significantly boosted growth, leading to greater plant height, leaf count, and flowering duration. The highest plant height recorded was 35.3 cm in the V2S2 treatment, while V1S2 had the highest number of leaves, reaching 43.73, at P = 0.05. Inoculated plants showed substantial yield improvements, achieving 2.9 tons per hectare, with increased pod and seed formation. Analysis of treated plants revealed variations in nitrogen, lipid, protein, carbohydrate, ash, and moisture content, underscoring the positive impact of inoculation. For example, lipid content ranged from 15.7% in V1S0 to 25.1% in V1S2, while the highest protein levels were recorded in V2S2 and V1S2. These results underscore the potential of Rhizobium inoculation as a sustainable strategy to enhance soybean production and contribute to food security.
{"title":"Enhancement of soybean productivity and nutritional properties by use of exogenous Rhizobium isolates","authors":"Victorine Lombeko Obe Tomo , Angéle Ndogho Pegalopo , Danielle Christelle Tinak Ekom , Bétina Djamouo Mbadjoun , Etienne Akoutou Mvondo , Clive Neba Akongnwi , Gaël Chatue Chatue , Christopher Suh , Zachée Ambang","doi":"10.1016/j.ocsci.2025.06.002","DOIUrl":"10.1016/j.ocsci.2025.06.002","url":null,"abstract":"<div><div>Soybean is a vital nutritional resource rich in protein, oil, vitamins, and minerals, serving as a leading global source of vegetable oil and helping combat undernourishment, especially in developing countries like Cameroon, where over 24 % of the population faces food insecurity. However, insufficient nutrients can severely hinder the formation of fruiting bodies, resulting in yields as low as one ton per hectare. This study explores the potential of enhancing nitrogen nutrition through <em>Rhizobium</em> bacteria to improve nodulation rates and overall soybean productivity. The objective was to assess the effects of various <em>Rhizobium</em> isolates on the productivity, physicochemical properties, and nutritional quality of soybeans, essential for agricultural development and food security. The experiment was carried out at IRAD Mbalmayo from March–July and September–November 2022. The experimental set-up was a completely randomized block design replicated thrice. Each replicate consisted of three elementary plots separated by 1 m. Crops were planted at 50 cm between rows and 10 cm between plants. Five treatments: control (S0), <em>Rhizobium</em> isolate No.1 (S1), <em>Rhizobium</em> isolate No.2 (S2), NoduMax (S3), NPK: 20-10-10 (S4), were applied to three varieties: V1 (TGX 1910–14F), V2 (MAKSOY 4N), V3 (TGX 1835 10E). Results showed that seed emergence rates varied from 69% to 99% among soybean varieties, with no significant differences across treatments. Notably, <em>Rhizobium</em> inoculation, particularly with isolate 2, significantly boosted growth, leading to greater plant height, leaf count, and flowering duration. The highest plant height recorded was 35.3 cm in the V2S2 treatment, while V1S2 had the highest number of leaves, reaching 43.73, at <em>P</em> = 0.05. Inoculated plants showed substantial yield improvements, achieving 2.9 tons per hectare, with increased pod and seed formation. Analysis of treated plants revealed variations in nitrogen, lipid, protein, carbohydrate, ash, and moisture content, underscoring the positive impact of inoculation. For example, lipid content ranged from 15.7% in V1S0 to 25.1% in V1S2, while the highest protein levels were recorded in V2S2 and V1S2. These results underscore the potential of Rhizobium inoculation as a sustainable strategy to enhance soybean production and contribute to food security.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 4","pages":"Pages 321-329"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145885818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-08-25DOI: 10.1016/j.ocsci.2025.04.006
Jiahui Wang , Huojiao Gan , Yan Tang , Haichao He , Mingkai Sun , Yashu Chen , Qianchun Deng , Fenghong Huang , Hu Tang
The increased risk of chronic diseases has led to increasing importance of coarse foods in daily life, but the inclusion of new ingredients has a great degree of influence on the structural characteristics and sensory qualities of the food. The effects of five different particle size variations on the physicochemical characteristics, dough, and steamed bread structure of Flaxseed-based milk coproduct (FMC) were investigated. As the particle size decreases, the structure of the dough becomes denser due to an increase in water retention capacity and dissolution capacity, weakening the competition for dough moisture and allowing for an increase in air-holding capacity. The reduction in particle size increased the specific volume of the steamed bread, a decrease in the spread ratio, and an optimization of hardness and elasticity, as well as an increase in consumer acceptance of the FMC steamed bread. However, it is not the smaller the particle size, the higher the quality of steamed bread, appropriate reduction of particle size can improve the quality of steamed bread. In addition, the addition of FMC reduces fat digestion. Therefore, the present study proposes a method to change the particle size of FMC to optimize the quality of the steamed bread and to reduce fat digestibility by adding FMC.
{"title":"Effect of particle size of Flaxseed-based milk coproduct on the quality of dough and steamed bread","authors":"Jiahui Wang , Huojiao Gan , Yan Tang , Haichao He , Mingkai Sun , Yashu Chen , Qianchun Deng , Fenghong Huang , Hu Tang","doi":"10.1016/j.ocsci.2025.04.006","DOIUrl":"10.1016/j.ocsci.2025.04.006","url":null,"abstract":"<div><div>The increased risk of chronic diseases has led to increasing importance of coarse foods in daily life, but the inclusion of new ingredients has a great degree of influence on the structural characteristics and sensory qualities of the food. The effects of five different particle size variations on the physicochemical characteristics, dough, and steamed bread structure of Flaxseed-based milk coproduct (FMC) were investigated. As the particle size decreases, the structure of the dough becomes denser due to an increase in water retention capacity and dissolution capacity, weakening the competition for dough moisture and allowing for an increase in air-holding capacity. The reduction in particle size increased the specific volume of the steamed bread, a decrease in the spread ratio, and an optimization of hardness and elasticity, as well as an increase in consumer acceptance of the FMC steamed bread. However, it is not the smaller the particle size, the higher the quality of steamed bread, appropriate reduction of particle size can improve the quality of steamed bread. In addition, the addition of FMC reduces fat digestion. Therefore, the present study proposes a method to change the particle size of FMC to optimize the quality of the steamed bread and to reduce fat digestibility by adding FMC.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 259-269"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145325928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-12DOI: 10.1016/j.ocsci.2025.04.008
Fatema Tuj Johora, Niloy Gain, Md. Zahidur Rahman, Jamilur Rahman
Indian mustard is recognized as a resilient and economically important oilseed crop. However, its potential remains untapped due to the limited availability of short-duration, high-yielding varieties capable of outcompeting other rabi crops. Considering this notion, we have evaluated twenty-one F2 and six BC1F1 populations derived from seven diversified parents of Brassicajuncea following a Randomized Complete Block Design at Sher-e-Bangla Agricultural University. Based on key agronomic traits, the genetic components, heterosis, inbreeding depression, and gene action were studied to select early maturing and high-yielding populations. The percentage of heterosis was manifested in various cross-combinations, including P4 × P6 (91.45% for yield per plant) and P5 × P6 (28.52% for thousand seed weight), emerging as promising candidates for increasing productivity while managing negative inbreeding effects. Conversely, significant inbreeding depression was noted in traits like days to siliquae maturity and yield, particularly in crosses, P1 × P2 (6.29%) and P3 × P5 (21.74%), underscoring the need for careful selection in breeding programs to mitigate these effects. Variance analysis indicated that both additive and non-additive genetic interactions play a pivotal role in the inheritance patterns of the traits of interest. Among the six backcrosses, one promising line was (P5 × P6) × P5, demonstrating early maturity (107.00 DAS) with improved seed yield (12.47 g). This combination exhibited the potential for enhancing the adaptability and productivity by maintaining the maturity index and accelerating yield. Furthermore, significant phenotypic variation across yield-contributing traits was notable, whereas thousand seed weight and yield per plant showed high broad-sense and narrow-sense of heritability. Besides, positive correlations between seed yield and its attributing traits were noted, suggesting potential avenues for selection breeding. Collectively, the obtained findings enhance the understanding of genetic mechanisms underlying heterosis and inbreeding depression in B. juncea, providing insights and effective strategies for developing superior cultivars with optimized agronomic traits.
{"title":"Evaluation of heterotic effects and inbreeding depression of F2 populations of Brassica juncea based on yield and yield-contributing traits","authors":"Fatema Tuj Johora, Niloy Gain, Md. Zahidur Rahman, Jamilur Rahman","doi":"10.1016/j.ocsci.2025.04.008","DOIUrl":"10.1016/j.ocsci.2025.04.008","url":null,"abstract":"<div><div>Indian mustard is recognized as a resilient and economically important oilseed crop. However, its potential remains untapped due to the limited availability of short-duration, high-yielding varieties capable of outcompeting other <em>rabi</em> crops. Considering this notion, we have evaluated twenty-one F<sub>2</sub> and six BC<sub>1</sub>F<sub>1</sub> populations derived from seven diversified parents of <em>B</em><em>rassica</em> <em>juncea</em> following a Randomized Complete Block Design at Sher-e-Bangla Agricultural University. Based on key agronomic traits, the genetic components, heterosis, inbreeding depression, and gene action were studied to select early maturing and high-yielding populations. The percentage of heterosis was manifested in various cross-combinations, including P4 × P6 (91.45% for yield per plant) and P5 × P6 (28.52% for thousand seed weight), emerging as promising candidates for increasing productivity while managing negative inbreeding effects. Conversely, significant inbreeding depression was noted in traits like days to siliquae maturity and yield, particularly in crosses, P1 × P2 (6.29%) and P3 × P5 (21.74%), underscoring the need for careful selection in breeding programs to mitigate these effects. Variance analysis indicated that both additive and non-additive genetic interactions play a pivotal role in the inheritance patterns of the traits of interest. Among the six backcrosses, one promising line was (P5 × P6) × P5, demonstrating early maturity (107.00 DAS) with improved seed yield (12.47 g). This combination exhibited the potential for enhancing the adaptability and productivity by maintaining the maturity index and accelerating yield. Furthermore, significant phenotypic variation across yield-contributing traits was notable, whereas thousand seed weight and yield per plant showed high broad-sense and narrow-sense of heritability. Besides, positive correlations between seed yield and its attributing traits were noted, suggesting potential avenues for selection breeding. Collectively, the obtained findings enhance the understanding of genetic mechanisms underlying heterosis and inbreeding depression in <em>B. juncea</em>, providing insights and effective strategies for developing superior cultivars with optimized agronomic traits.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 223-234"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-05DOI: 10.1016/j.ocsci.2025.03.002
Jiaxin Liu , Jinfeng Wu , Xinhong Liu , Lili Liu , Mingli Yan , Bao Li
Flooding can lead to oxygen deprivation in rapeseed, negatively affecting its growth and development and ultimately reducing yields. Vitreoscilla hemoglobin (VHb), a bacterial hemoglobin with a high oxygen-binding affinity, plays a key role in enhancing oxygen uptake and metabolic efficiency under low-oxygen conditions. Through genetic transformation, we overexpressed the VHb gene in rapeseed, which resulted in significant improvements in survival rate, root length, and biomass under submerged conditions. Additionally, we observed that transgenic plants developed adventitious roots in response to submergence stress. These transgenic plants also exhibited increased activities of ethanol dehydrogenase and pyruvate decarboxylase—enzymes associated with anaerobic respiration. Our findings indicate that VHb enhances flooding tolerance in rapeseed by promoting adventitious root formation and strengthening the plant's capacity for fermentation metabolism under anaerobic conditions.
{"title":"Overexpression of Vitreoscilla hemoglobin gene enhances flooding resistance in Brassica napus","authors":"Jiaxin Liu , Jinfeng Wu , Xinhong Liu , Lili Liu , Mingli Yan , Bao Li","doi":"10.1016/j.ocsci.2025.03.002","DOIUrl":"10.1016/j.ocsci.2025.03.002","url":null,"abstract":"<div><div>Flooding can lead to oxygen deprivation in rapeseed, negatively affecting its growth and development and ultimately reducing yields. <em>Vitreoscilla</em> hemoglobin (VHb), a bacterial hemoglobin with a high oxygen-binding affinity, plays a key role in enhancing oxygen uptake and metabolic efficiency under low-oxygen conditions. Through genetic transformation, we overexpressed the <em>VHb</em> gene in rapeseed, which resulted in significant improvements in survival rate, root length, and biomass under submerged conditions. Additionally, we observed that transgenic plants developed adventitious roots in response to submergence stress. These transgenic plants also exhibited increased activities of ethanol dehydrogenase and pyruvate decarboxylase—enzymes associated with anaerobic respiration. Our findings indicate that <em>VHb</em> enhances flooding tolerance in rapeseed by promoting adventitious root formation and strengthening the plant's capacity for fermentation metabolism under anaerobic conditions.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 186-193"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-08-05DOI: 10.1016/j.ocsci.2025.05.003
Peiyao Luo , Xuefang Wang , Mengxue Fang , Fei Ma , Li Yu , Wei Fan , Shiyin Guo , Huiying Lv , Liangxiao Zhang , Qianchun Deng , Peiwu Li , Zhonghai Tang
Flax (Linum usitatissimum L.) is an important oil crop in the high-altitude arid regions of China. Flaxseed is rich in various nutrients. However, the nutritional qualities of flaxseeds from different producing areas are still unclear. In this study, the nutritional characteristics of flaxseed from five producing areas in China were investigated. Twenty five nutritional quality indices in flaxseed were analyzed. Subsequently, chemometric methods, including cluster analysis, principal component analysis (PCA) and partial least square discriminant analysis (PLS-DA), were employed to discover the characteristics of nutritional qualities in flaxseeds. The results revealed there are significant differences in nutritional qualities among flaxseeds from different production areas. Six quality indices including γ-tocopherol, vitamin E, phytosterols, oleic acid, α-linolenic acid, and cycloartenol were susceptible to producing area. In detail, the superiorcharacteristic nutrients of Ningxia flaxseed, Inner Mongolia flaxseed and Hebei flaxseed are vitamin E (17.3 mg/100g), α-linolenic acid (52.6%) and cycloartenol (1738.1 mg/kg), and phytosterols (3032.0 mg/kg), respectively. This study promotes the high-value development and utilization of local flaxseed industry.
{"title":"Evaluation of the nutritional qualities of flaxseeds from five main producing areas in China","authors":"Peiyao Luo , Xuefang Wang , Mengxue Fang , Fei Ma , Li Yu , Wei Fan , Shiyin Guo , Huiying Lv , Liangxiao Zhang , Qianchun Deng , Peiwu Li , Zhonghai Tang","doi":"10.1016/j.ocsci.2025.05.003","DOIUrl":"10.1016/j.ocsci.2025.05.003","url":null,"abstract":"<div><div>Flax (<em>Linum usitatissimum</em> L.) is an important oil crop in the high-altitude arid regions of China. Flaxseed is rich in various nutrients. However, the nutritional qualities of flaxseeds from different producing areas are still unclear. In this study, the nutritional characteristics of flaxseed from five producing areas in China were investigated. Twenty five nutritional quality indices in flaxseed were analyzed. Subsequently, chemometric methods, including cluster analysis, principal component analysis (PCA) and partial least square discriminant analysis (PLS-DA), were employed to discover the characteristics of nutritional qualities in flaxseeds. The results revealed there are significant differences in nutritional qualities among flaxseeds from different production areas. Six quality indices including γ-tocopherol, vitamin E, phytosterols, oleic acid, α-linolenic acid, and cycloartenol were susceptible to producing area. In detail, the superiorcharacteristic nutrients of Ningxia flaxseed, Inner Mongolia flaxseed and Hebei flaxseed are vitamin E (17.3 mg/100g), α-linolenic acid (52.6%) and cycloartenol (1738.1 mg/kg), and phytosterols (3032.0 mg/kg), respectively. This study promotes the high-value development and utilization of local flaxseed industry.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 205-211"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-06DOI: 10.1016/j.ocsci.2025.02.005
Xuan Ma , Chongbo Huang , Chang Zheng , Fangyan Long , Mandi Zhao , Changsheng Liu
Walnuts are rich in a variety of nutritional components. However, due to their high content of unsaturated fatty acids (UFAs), the quality of walnuts tends to decline during storage, which adversely affects the development of the walnut industry. This study was aimed to investigate the impacts of temperature and packaging methods on the storage quality and oxidative stability of walnuts. The Wen 185 walnut variety was selected, and the physical-chemical and nutritional indexes of walnuts stored for 42 weeks under different temperatures (−18 °C, 4 °C, and room temperature) and packaging methods (vacuum light-exposed, vacuum light-proof, vacuum-radiation light-exposed, vacuum-radiation light-proof, nitrogen-filled light-exposed, nitrogen-filled light-proof) were measured. The results showed that low temperatures, especially −18 °C, in combination with vacuum lightproof packaging, could effectively suppress the increase in oxidative stability indicators such as acid value (AV) and peroxide value (PV), and maintain high retention rates of nutritional indicators like tocopherol and phytosterol. This study has elucidated that low temperatures and appropriate packaging methods play the crucial roles in maintaining the quality and oxidative stability of walnuts during storage. It has provided comprehensive and valuable data support and theoretical basis for the scientific storage of walnuts, contributing to the development of the walnut industry and the guarantee of product quality.
{"title":"Analysis of the effect of temperature and packing method on the quality and oxidative stability of walnuts in storage","authors":"Xuan Ma , Chongbo Huang , Chang Zheng , Fangyan Long , Mandi Zhao , Changsheng Liu","doi":"10.1016/j.ocsci.2025.02.005","DOIUrl":"10.1016/j.ocsci.2025.02.005","url":null,"abstract":"<div><div>Walnuts are rich in a variety of nutritional components. However, due to their high content of unsaturated fatty acids (UFAs), the quality of walnuts tends to decline during storage, which adversely affects the development of the walnut industry. This study was aimed to investigate the impacts of temperature and packaging methods on the storage quality and oxidative stability of walnuts. The Wen 185 walnut variety was selected, and the physical-chemical and nutritional indexes of walnuts stored for 42 weeks under different temperatures (−18 °C, 4 °C, and room temperature) and packaging methods (vacuum light-exposed, vacuum light-proof, vacuum-radiation light-exposed, vacuum-radiation light-proof, nitrogen-filled light-exposed, nitrogen-filled light-proof) were measured. The results showed that low temperatures, especially −18 °C, in combination with vacuum lightproof packaging, could effectively suppress the increase in oxidative stability indicators such as acid value (AV) and peroxide value (PV), and maintain high retention rates of nutritional indicators like tocopherol and phytosterol. This study has elucidated that low temperatures and appropriate packaging methods play the crucial roles in maintaining the quality and oxidative stability of walnuts during storage. It has provided comprehensive and valuable data support and theoretical basis for the scientific storage of walnuts, contributing to the development of the walnut industry and the guarantee of product quality.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 212-222"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145109665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-07DOI: 10.1016/j.ocsci.2025.04.007
Dinh Quan Nguyen , Ngoc Thien Phuc Nguyen , Thi Trinh To , Le Minh Dat Nguyen , Thi Khanh Van Pham , Gia Man Vu , Long Phuoc Lieu
Vitamin C, a potent antioxidant with broad therapeutic applications, is limited by rapid degradation under environmental stressors, which compromises its stability and bioactivity. This study addresses these limitations by formulating a double nano-emulsion (W/O/W) system incorporating macadamia oil and tea tree oil, using homogenization and phase inversion temperature (PIT) techniques. Comprehensive physicochemical characterization, including droplet size, polydispersity index (PDI), zeta potential, turbidity, Fourier transform infrared spectroscopy (FTIR), and SEM, was conducted alongside stability assessments under varying pH, temperature, and storage conditions. The optimized nano-emulsions exhibited nanoscale droplet sizes (10–40 nm), low PDI values (indicating high uniformity), and robust stability. Interestingly, the formulation with 2% W/O loading, with a particle size of 11.57 nm and a PDI of 0.04, demonstrated an antioxidant capacity of 4622.62 μg ascorbic acid equivalents (AA)/g, which was significantly higher (p < 0.05) compared to both natural oils (macadamia oil: 20.91 μg AA/g, tea tree oil: 16.86 μg AA/g) and a 10% Vitamin C aqueous solution (592.94 μg AA/g). FTIR analysis confirmed the molecular integrity of Vitamin C and its successful encapsulation with macadamia and tea tree oils, while SEM images revealed uniformly spherical and well-dispersed droplets. Moreover, the formulation retained its structural integrity and antioxidant functionality under diverse pH and thermal conditions. These findings underscore the potential of double nano-emulsion systems to overcome the stability challenges of Vitamin C, offering a promising approach to enhance its bioavailability and therapeutic performance in pharmaceutical and cosmetic applications.
{"title":"Double nano-emulsions for stabilizing Vitamin C and enhancing antioxidant capacity with macadamia oil and tea tree essential oil","authors":"Dinh Quan Nguyen , Ngoc Thien Phuc Nguyen , Thi Trinh To , Le Minh Dat Nguyen , Thi Khanh Van Pham , Gia Man Vu , Long Phuoc Lieu","doi":"10.1016/j.ocsci.2025.04.007","DOIUrl":"10.1016/j.ocsci.2025.04.007","url":null,"abstract":"<div><div>Vitamin C, a potent antioxidant with broad therapeutic applications, is limited by rapid degradation under environmental stressors, which compromises its stability and bioactivity. This study addresses these limitations by formulating a double nano-emulsion (W/O/W) system incorporating macadamia oil and tea tree oil, using homogenization and phase inversion temperature (PIT) techniques. Comprehensive physicochemical characterization, including droplet size, polydispersity index (PDI), zeta potential, turbidity, Fourier transform infrared spectroscopy (FTIR), and SEM, was conducted alongside stability assessments under varying pH, temperature, and storage conditions. The optimized nano-emulsions exhibited nanoscale droplet sizes (10–40 nm), low PDI values (indicating high uniformity), and robust stability. Interestingly, the formulation with 2% W/O loading, with a particle size of 11.57 nm and a PDI of 0.04, demonstrated an antioxidant capacity of 4622.62 μg ascorbic acid equivalents (AA)/g, which was significantly higher (p < 0.05) compared to both natural oils (macadamia oil: 20.91 μg AA/g, tea tree oil: 16.86 μg AA/g) and a 10% Vitamin C aqueous solution (592.94 μg AA/g). FTIR analysis confirmed the molecular integrity of Vitamin C and its successful encapsulation with macadamia and tea tree oils, while SEM images revealed uniformly spherical and well-dispersed droplets. Moreover, the formulation retained its structural integrity and antioxidant functionality under diverse pH and thermal conditions. These findings underscore the potential of double nano-emulsion systems to overcome the stability challenges of Vitamin C, offering a promising approach to enhance its bioavailability and therapeutic performance in pharmaceutical and cosmetic applications.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-17DOI: 10.1016/j.ocsci.2025.03.003
Desawi Hdru Teklu , Ahmed A. Abbas , Jun You , Linhai Wang
Sesame is a multi-purpose high-value oilseed crop, which can beused in the food, feed, and cosmetics applications. The low yield of sesame is due to the lack of high-yielding and locally adapted varieties, which have the susceptibility to capsule shattering and biotic and abiotic stresses. The breeding gains in sesame are low and stagnant compared to other oilseed crops such as canola, groundnut and sunflower. Breeding for enhanced yield-related, oil quantity and quality, biotic and abiotic stresses tolerant varieties is vital to the adaptation of the climate change. Several genes and quantitative trait loci (QTLs) related to yield-related, oil quantity and quality, biotic and abiotic stresses tolerant have been identified through modern plant breeding tools in sesame. The depth understanding of the genetic basis, molecular mechanisms and regulatory genes involved in yield-related, oil quantity and quality, biotic and abiotic stresses tolerant in sesame is important for the improvement of sesame breeding programs. This article reviews and documents these achievements will provide fundamental data and references for practical applications of sesam research.
{"title":"Genes and QTLs discovery for sesame (Sesamum indicum L.) breeding traits: A review","authors":"Desawi Hdru Teklu , Ahmed A. Abbas , Jun You , Linhai Wang","doi":"10.1016/j.ocsci.2025.03.003","DOIUrl":"10.1016/j.ocsci.2025.03.003","url":null,"abstract":"<div><div>Sesame is a multi-purpose high-value oilseed crop, which can beused in the food, feed, and cosmetics applications. The low yield of sesame is due to the lack of high-yielding and locally adapted varieties, which have the susceptibility to capsule shattering and biotic and abiotic stresses. The breeding gains in sesame are low and stagnant compared to other oilseed crops such as canola, groundnut and sunflower. Breeding for enhanced yield-related, oil quantity and quality, biotic and abiotic stresses tolerant varieties is vital to the adaptation of the climate change. Several genes and quantitative trait loci (QTLs) related to yield-related, oil quantity and quality, biotic and abiotic stresses tolerant have been identified through modern plant breeding tools in sesame. The depth understanding of the genetic basis, molecular mechanisms and regulatory genes involved in yield-related, oil quantity and quality, biotic and abiotic stresses tolerant in sesame is important for the improvement of sesame breeding programs. This article reviews and documents these achievements will provide fundamental data and references for practical applications of sesam research.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 240-258"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-01Epub Date: 2025-09-04DOI: 10.1016/j.ocsci.2025.02.004
Ngoc Anh Luu , Thi Trinh To , Ngoc Han Tran , Gia Man Vu , Ngoc Yen Linh Ngo , Mai Phuong Linh Tran , Nhat My Nguyen , Thi Ngoc Ninh Dinh , Anh Nguyet Dam , Ngoc Ngan Lieu , Dinh Quan Nguyen
This study focuses on the preparation, and optimization of the nanoemulsions coorporating with pumpkin seed oil, grape seed oil, and grapefruit essential oil using the phase inversion temperature (PIT) technique. The research investigated the impact of surfactant types and concentrations on critical nanoemulsion properties, including droplet size, polydispersity index (PDI), and zeta potential. Using a Box-Behnken Design (BBD) model, the formulation was optimized containing 6.0% plant oils, 10.0% Tween 80, 2.0% Span 80, and 1.0% lecithin to achieve nano-sized droplets (33.52 nm), with a low PDI (0.205), and a stable zeta potential (−15.49 mV). The antioxidant activity, was evaluated through 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays, demonstrating its outstanding efficacy. And the optimized nanoemulsion showed a radical-scavenging capacity exceeding 2250 μg ascorbic acid equivalents/g, significantly outperforming non-nanoemulsified oils. Stability testing under various environmental conditions highlighted exceptional robustness, with refrigerated samples maintaining structural integrity, minimal particle size growth, and consistent physicochemical properties over a 30-day storage period. The results suggest that the plant oil-based nanoemulsions exhibit strong antioxidant potential, offering a promising natural treatment for their application in cosmeceutical and therapeutic formulations.
{"title":"Optimization of plant oil-based nanoemulsions prepared via phase inversion temperature and evaluation of their antioxidant capacity","authors":"Ngoc Anh Luu , Thi Trinh To , Ngoc Han Tran , Gia Man Vu , Ngoc Yen Linh Ngo , Mai Phuong Linh Tran , Nhat My Nguyen , Thi Ngoc Ninh Dinh , Anh Nguyet Dam , Ngoc Ngan Lieu , Dinh Quan Nguyen","doi":"10.1016/j.ocsci.2025.02.004","DOIUrl":"10.1016/j.ocsci.2025.02.004","url":null,"abstract":"<div><div>This study focuses on the preparation, and optimization of the nanoemulsions coorporating with pumpkin seed oil, grape seed oil, and grapefruit essential oil using the phase inversion temperature (PIT) technique. The research investigated the impact of surfactant types and concentrations on critical nanoemulsion properties, including droplet size, polydispersity index (PDI), and zeta potential. Using a Box-Behnken Design (BBD) model, the formulation was optimized containing 6.0% plant oils, 10.0% Tween 80, 2.0% Span 80, and 1.0% lecithin to achieve nano-sized droplets (33.52 nm), with a low PDI (0.205), and a stable zeta potential (−15.49 mV). The antioxidant activity, was evaluated through 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays, demonstrating its outstanding efficacy. And the optimized nanoemulsion showed a radical-scavenging capacity exceeding 2250 μg ascorbic acid equivalents/g, significantly outperforming non-nanoemulsified oils. Stability testing under various environmental conditions highlighted exceptional robustness, with refrigerated samples maintaining structural integrity, minimal particle size growth, and consistent physicochemical properties over a 30-day storage period. The results suggest that the plant oil-based nanoemulsions exhibit strong antioxidant potential, offering a promising natural treatment for their application in cosmeceutical and therapeutic formulations.</div></div>","PeriodicalId":34095,"journal":{"name":"Oil Crop Science","volume":"10 3","pages":"Pages 194-204"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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