肉类研究2025，Vol.39Issue(11)：64-71,8.DOI:10.7506/rlyj1001-8123-20250223-056
羊骨胶原抗冻肽对羊肉冰温贮藏期间新鲜度的影响
Effect of Sheep Bone Collagen-Derived Antifreeze Peptides on Mutton Freshness during Superchilled Storage
摘要
Abstract
This study investigated the effect of antifreeze peptides(AFP)derived from enzymatic hydrolysis of sheep bone collagen as a preservative on freshness indices of mutton during superchilled storage.Mutton was treated with AFP or one of the three traditional preservatives:chitosan,tea polyphenols and lysozyme and stored at-4℃for up to 20 d.Changes in six freshness indices were examined during the storage period to develop a model for the evaluation of mutton freshness.The proposed model was applied to examine the effect of AFP and the traditional preservatives on keeping mutton freshness.The results showed that the thermal hysteresis activity of AFP was 5.2℃,and superchilled storage reduced the ice crystal content of the samples.Lysozyme significantly improved the tenderness of mutton(P<0.05),while tea polyphenols significantly improved the color(P<0.05).Both of them prolonged the shelf-life by five days compared with the untreated group.Chitosan significantly improved the pH and total bacterial count(P<0.05)and prolonged the shelf life to 15-20 d.AFP improved all tested indicators.Notably,occurrence of the extreme acidity value in the AFP-treated group was delayed to the 15th day,and the total volatile base nitrogen(TVB-N)content was maintained below 10 mg/100 g in the first 15 d.The model results showed that AFP extended the shelf life of mutton to more than 20 d.Overall,AFP function as a cryoprotective agent to improve various mutton freshness indicators during superchilled storage,effectively prolonging the shelf life.关键词
胶原抗冻肽/抗冻型保鲜剂/羊肉新鲜度综合评分模型Key words
collagen-derived antifreeze peptide/antifreeze preservative/comprehensive evaluation model for mutton freshness分类
轻工纺织引用本文复制引用
左晓佳,陈新文,帕娜尔·依都拉,阿依帕夏·阿卜杜热西提..羊骨胶原抗冻肽对羊肉冰温贮藏期间新鲜度的影响[J].肉类研究,2025,39(11):64-71,8.基金项目
新疆维吾尔自治区重点实验室开放课题项目(2022D04010) （2022D04010）
