Pub Date : 2025-12-24DOI: 10.1016/j.aaf.2025.11.012
Thi Hoan Vu , Thi Phuong Nhung Tran , Ngoc Boi Vu , Thi My Trang Nguyen
Sepia pharaonis is a commercially valuable cephalopod, yet highly prone to quality deterioration during refrigeration. This study optimized the use of oligochitosan (COS) for cold storage preservation of S. pharaonis using a Box-Behnken design with three variables: COS concentration (0.5–1.5%), immersion time (30–150 s), and storage temperature (2–8 °C). The optimal condition (1.14% COS, 60 s, 4 °C) was validated in independent runs after 7 days. The optimal condition (1.14% COS, 60 s, 4 °C) yielded the highest sensory acceptability (8.9 on a 9-point hedonic scale) after 7 days. COS-treated samples showed significantly lower total volatile base nitrogen (TVB-N) (47.58 mg N/100 g DW), ammonia (NH3) (11.32 mg/100 g DW), and peroxide value (POV) (7.84 μmol KOH g−1 dry weight), indicating delayed protein and lipid degradation. Microbial loads, including total plate count and Pseudomonas spp., were also significantly reduced (P < 0.01). The results support COS as a natural preservative that enhances the shelf life and safety of S. pharaonis, offering a viable alternative to synthetic additives in seafood processing.
{"title":"Optimized oligochitosan treatment for preserving postharvest quality of Sepia pharaonis during cold storage","authors":"Thi Hoan Vu , Thi Phuong Nhung Tran , Ngoc Boi Vu , Thi My Trang Nguyen","doi":"10.1016/j.aaf.2025.11.012","DOIUrl":"10.1016/j.aaf.2025.11.012","url":null,"abstract":"<div><div><em>Sepia pharaonis</em> is a commercially valuable cephalopod, yet highly prone to quality deterioration during refrigeration. This study optimized the use of oligochitosan (COS) for cold storage preservation of <em>S. pharaonis</em> using a Box-Behnken design with three variables: COS concentration (0.5–1.5%), immersion time (30–150 s), and storage temperature (2–8 °C). The optimal condition (1.14% COS, 60 s, 4 °C) was validated in independent runs after 7 days. The optimal condition (1.14% COS, 60 s, 4 °C) yielded the highest sensory acceptability (8.9 on a 9-point hedonic scale) after 7 days. COS-treated samples showed significantly lower total volatile base nitrogen (TVB-N) (47.58 mg N/100 g DW), ammonia (NH<sub>3</sub>) (11.32 mg/100 g DW), and peroxide value (POV) (7.84 μmol KOH g<sup>−1</sup> dry weight), indicating delayed protein and lipid degradation. Microbial loads, including total plate count and <em>Pseudomonas</em> spp., were also significantly reduced (<em>P</em> < 0.01). The results support COS as a natural preservative that enhances the shelf life and safety of <em>S. pharaonis</em>, offering a viable alternative to synthetic additives in seafood processing.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 605-611"},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025806","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 : 2025-12-24DOI: 10.1016/j.aaf.2025.11.003
Peng Huang , Jinliang Du , Jie Wei , Jiancao Gao , Liping Cao , Jun Gao , Jiayi Li , Haojun Zhu , Yao Zheng , Gangchun Xu , Shunlong Meng
Ovarian development in the Chinese mitten crab (Eriocheir sinensis) enters a rapid development period after the reproductive molt. During this process, low-temperature stimulation seems to be a key initiating factor. To verify this, the current study simulated a nine-week long-term low-temperature experiment during the fattening stage in an indoor thermostatic water circulation system, including a high-temperature control group (30 °C), a medium-temperature group (25 °C) and low-temperature group (20 °C). Based on multi-omics sequencing and histological analysis, we found that chronic low-temperature exposure promotes ovarian development by up-regulating the mRNA expression of crucial genes (e75/74, vg/vgr, 17β-estradiol, erα) and promoting the secretion of GIH, MF, and E2 hormones. This can be evidenced by the densely distributed yolk granules, significantly increased oocyte diameter, and GSI index. Interestingly, the significantly increased lipid droplet area and crude lipid level indicate that chronic cold stimulation can promote fat accumulation in the ovary. Significantly, the peroxisome proliferator-activated receptor (PPAR) signaling pathway and phospholipids, including phosphatidylcholine (PC) and phosphatidylethanolamine (PE), play important roles in this process. In addition, continuous cold exposure can significantly increase the levels of monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) of hepatopancreas and ovarian tissue, and inhibit the synthesis of saturated fatty acids (SFAs) to promote the deposition of nutrients and flavor substances. In conclusion, our current data reveal a series of physiological responses to continuous cold exposure during fattening, providing valuable data support for the fattening strategy and quality improvement of Chinese mitten crabs.
{"title":"Effects of different temperatures on ovarian development, lipid metabolism and nutritional quality of Eriocheir sinensis during fattening","authors":"Peng Huang , Jinliang Du , Jie Wei , Jiancao Gao , Liping Cao , Jun Gao , Jiayi Li , Haojun Zhu , Yao Zheng , Gangchun Xu , Shunlong Meng","doi":"10.1016/j.aaf.2025.11.003","DOIUrl":"10.1016/j.aaf.2025.11.003","url":null,"abstract":"<div><div>Ovarian development in the Chinese mitten crab (<em>Eriocheir sinensis</em>) enters a rapid development period after the reproductive molt. During this process, low-temperature stimulation seems to be a key initiating factor. To verify this, the current study simulated a nine-week long-term low-temperature experiment during the fattening stage in an indoor thermostatic water circulation system, including a high-temperature control group (30 °C), a medium-temperature group (25 °C) and low-temperature group (20 °C). Based on multi-omics sequencing and histological analysis, we found that chronic low-temperature exposure promotes ovarian development by up-regulating the mRNA expression of crucial genes (<em>e75</em>/<em>74</em>, <em>vg</em>/<em>vgr</em>, <em>17β-estradiol</em>, <em>erα</em>) and promoting the secretion of GIH, MF, and E2 hormones. This can be evidenced by the densely distributed yolk granules, significantly increased oocyte diameter, and GSI index. Interestingly, the significantly increased lipid droplet area and crude lipid level indicate that chronic cold stimulation can promote fat accumulation in the ovary. Significantly, the peroxisome proliferator-activated receptor (PPAR) signaling pathway and phospholipids, including phosphatidylcholine (PC) and phosphatidylethanolamine (PE), play important roles in this process. In addition, continuous cold exposure can significantly increase the levels of monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) of hepatopancreas and ovarian tissue, and inhibit the synthesis of saturated fatty acids (SFAs) to promote the deposition of nutrients and flavor substances. In conclusion, our current data reveal a series of physiological responses to continuous cold exposure during fattening, providing valuable data support for the fattening strategy and quality improvement of Chinese mitten crabs.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 540-553"},"PeriodicalIF":0.0,"publicationDate":"2025-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025802","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 : 2025-12-23DOI: 10.1016/j.aaf.2025.11.009
S. Janani, M. Hemalatha, D.S. Dipshika, M. Sukumar
Penaeus monodon (giant tiger prawn), one of the most valuable aquaculture species, provides a great deal of nutrition, sensory properties, and importance as a marketable food species. Spoilage occurs quickly and presents serious issues of post-harvest quality, safety, and shelf life. Preservation methods that are well-established, such as freezing, chilling, and adding chemical preservatives, may decrease quality, reduce nutritional value or result in a public health issue if any chemicals remain as residues. In response to the rising consumer demand for minimally-processed, safe, and sustainable seafood products, green and hybrid preservation methods have gained considerable interest. This review provides exhaustive coverage of several novel preservation methods examined for Penaeus monodon, including combinations of non-thermal methods (such as pulsed electric fields, ultrasound, and cold plasma), natural preservatives (such as plant extracts, essential oils, and bioactive coatings), and advanced forms of packaging. Furthermore, much of the focus in this review will be on hybrid methods that encourage synergism for inhibiting microorganisms, preventing lipid oxidation, and preserving sensory attributes of the seafood throughout storage. This article intends to provide information to those in the seafood industry, seafood technologists, and research community in promoting preservation methods to establish sustainability and supply for Penaeus monodon. Despite promising lab scale findings, challenges with customer acceptance, regulatory approvals, and process optimization prevent the various preservation strategies from commercial scaling. Variability in microbial load, size, and lack of harmonized protocols further complicate quality assurance and regulatory approval. Future research should focus on understanding mechanical relationships, optimizing multi-hurdle combinations, pilot scale validation, collaboration with industry stakeholders, meeting customer expectations, and clear regulatory frameworks. Additionally, developing non-destructive, rapid, environmentally friendly freshness assessment techniques that are more accessible than traditional chemical methods represents an important research direction.
{"title":"Hybrid and green preservation techniques for Penaeus monodon: A review of emerging technologies, shelf life enhancement and research gaps","authors":"S. Janani, M. Hemalatha, D.S. Dipshika, M. Sukumar","doi":"10.1016/j.aaf.2025.11.009","DOIUrl":"10.1016/j.aaf.2025.11.009","url":null,"abstract":"<div><div><em>Penaeus monodon</em> (giant tiger prawn), one of the most valuable aquaculture species, provides a great deal of nutrition, sensory properties, and importance as a marketable food species. Spoilage occurs quickly and presents serious issues of post-harvest quality, safety, and shelf life. Preservation methods that are well-established, such as freezing, chilling, and adding chemical preservatives, may decrease quality, reduce nutritional value or result in a public health issue if any chemicals remain as residues. In response to the rising consumer demand for minimally-processed, safe, and sustainable seafood products, green and hybrid preservation methods have gained considerable interest. This review provides exhaustive coverage of several novel preservation methods examined for <em>Penaeus monodon,</em> including combinations of non-thermal methods (such as pulsed electric fields, ultrasound, and cold plasma), natural preservatives (such as plant extracts, essential oils, and bioactive coatings), and advanced forms of packaging. Furthermore, much of the focus in this review will be on hybrid methods that encourage synergism for inhibiting microorganisms, preventing lipid oxidation, and preserving sensory attributes of the seafood throughout storage. This article intends to provide information to those in the seafood industry, seafood technologists, and research community in promoting preservation methods to establish sustainability and supply for <em>Penaeus monodon.</em> Despite promising lab scale findings, challenges with customer acceptance, regulatory approvals, and process optimization prevent the various preservation strategies from commercial scaling. Variability in microbial load, size, and lack of harmonized protocols further complicate quality assurance and regulatory approval. Future research should focus on understanding mechanical relationships, optimizing multi-hurdle combinations, pilot scale validation, collaboration with industry stakeholders, meeting customer expectations, and clear regulatory frameworks. Additionally, developing non-destructive, rapid, environmentally friendly freshness assessment techniques that are more accessible than traditional chemical methods represents an important research direction.</div></div>","PeriodicalId":36894,"journal":{"name":"Aquaculture and Fisheries","volume":"11 3","pages":"Pages 499-509"},"PeriodicalIF":0.0,"publicationDate":"2025-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025803","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号