研究报告

冷冻保护剂对反复冻融牛肉的品质及微观结构的影响

  • 徐静 ,
  • 陶宇婷 ,
  • 丁珊珊 ,
  • 刘琳欣 ,
  • 潘磊庆 ,
  • 武杰
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  • 1(蚌埠学院 食品与生物工程学院,安徽 蚌埠,233030)
    2(安徽粮食工程职业学院,安徽 合肥,230011)
    3(南京农业大学 食品科技学院,江苏 南京,210095)
第一作者:硕士,副教授(武杰教授为通信作者,E-mail:459853502@qq.com)

收稿日期: 2024-01-12

  修回日期: 2024-02-26

  网络出版日期: 2024-08-02

基金资助

安徽省高校自然科学研究项目(KJ2021A1120);安徽省科技重大专项(201903a06020010);安徽省重点研究与开发项目长三角科技创新联合攻关专项(202004g01020009);产学研合作项目“肉品加工关键技术研究及设备开发”;产学研合作项目“新型低脂肉类罐头天然防腐技术的研发”

Effect of cryoprotectants on quality and microstructure of repeated freeze-thaw beef

  • XU Jing ,
  • TAO Yuting ,
  • DING Shanshan ,
  • LIU Linxin ,
  • PAN Leiqing ,
  • WU Jie
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  • 1(College of Food and Biological Engineering, Bengbu University, Bengbu 233030, China)
    2(Anhui Vocational College of Grain Engineering, Hefei 230011, China)
    3(College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China)

Received date: 2024-01-12

  Revised date: 2024-02-26

  Online published: 2024-08-02

摘要

冷冻保护剂是一种被广泛接受的食品添加剂,可以减少冷冻食品的解冻损失,保持食品结构。该文以牛肉为研究对象,测定了海藻糖、蔗糖和卡拉胶对牛肉在不同冻融次数处理下的解冻损失、蒸煮损失、水分分布、质构和微观结构等指标的影响,探讨了冷冻保护剂对反复冻融牛肉品质的保护作用。结果表明,添加冷冻保护剂可以降低牛肉的解冻损失、抑制pH增长,维持牛肉的水分和肌原纤维结构。与对照组解冻损失(36.22%)相比,经5次冻融后卡拉胶与海藻糖(CT)组、卡拉胶与蔗糖(CS)组及海藻糖与蔗糖(TS)组解冻损失分别为35.75%、35.05%和28.94%。TS组具有最低的解冻损失,水分维持能力最强。此外TS组水分迁移也较少,具有最佳的多次冻融保护效果。CT组的pH值(5.94)和硫代巴比妥酸值(0.60 mg/kg)最低,脂质氧化抑制效果最强。经5次冻融后,添加冷冻保护剂的牛肉,尤其是添加TS和CS牛肉结构更紧密。该研究结果有助于更好地了解糖类在冷冻牛肉中的冷冻保护作用,并且为冷冻保护剂在食品工业中的应用提供参考。

本文引用格式

徐静 , 陶宇婷 , 丁珊珊 , 刘琳欣 , 潘磊庆 , 武杰 . 冷冻保护剂对反复冻融牛肉的品质及微观结构的影响[J]. 食品与发酵工业, 2024 , 50(13) : 209 -216 . DOI: 10.13995/j.cnki.11-1802/ts.038568

Abstract

Cryoprotectants are widely accepted additives that reduce thawing loss and maintain structure in frozen food.In this paper, beef was taken as the research object, and a new type of cryoprotectant treatment was carried out on beef.The purpose of this study was to study the protective effects of trehalose, sucrose, and carrageenan on beef under different freeze-thaw times.Through the determination of thawing loss, cooking loss, water distribution, texture, and microstructure of frozen and thawed beef, the quality changes and cryoprotective effects of beef under different cryoprotectant treatments were discussed.Results showed that the addition of cryoprotectant could reduce the thawing loss, inhibit the increase of pH value, and maintain the water content and myofibrillar structure of beef.Compared with the thawing loss of the control group (36.22%), after 5 freeze-thaw cycles the thawing loss of the carrageenan and trehalose (CT) group, carrageenan and sucrose (CS) group, and trehalose and sucrose (TS) group were 35.75%, 35.05%, and 28.94%, respectively.The TS group also had less water migration, which had the best multi-freeze-thaw protection effect.The CT group had the lowest pH (5.94) and thiobarbituric acid value (0.60 mg/kg), which had the best effect on preventing lipid oxidation.After 5 freeze-thaw cycles, the beef with cryoprotectant, especially the beef with TS and CS, was more tightly structured.All in all, the addition of trehalose and sucrose can effectively reduce the water loss of beef after repeated freezing and thawing, and inhibit the deterioration of quality.The results of this study may help to better understand the cryoprotective effect of sugars in frozen beef, and provide a reference for the application of cryoprotectants in the food industry.

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