兔皮明胶/迷迭香酸复合膜在猪肉冷藏保鲜中的应用效果

doi:10.7506/spkx1002-6630-20180930-339

食品科学 ›› 2019, Vol. 40 ›› Issue (19): 281-287.doi: 10.7506/spkx1002-6630-20180930-339

兔皮明胶/迷迭香酸复合膜在猪肉冷藏保鲜中的应用效果

李媛，张晓洁，马良，郭婷，余永，戴宏杰，周鸿媛，张宇昊,

（1.西南大学食品科学学院，重庆 400715；2.西南大学生物学研究中心，重庆 400715）

出版日期:2019-10-15 发布日期:2019-10-25
基金资助:
“十三五”国家重点研发计划重点专项（2016YFD0400200）；国家自然科学基金面上项目（31671881）；重庆市基础科学与前沿技术研究项目（cstc2015jcyjBX0116；cstc2018jcyjA0939）

Application of Rabbit Skin Gelatin/Rosmarinic Acid Composite Film in Pork Quality Preservation during Cold Storage

LI Yuan, ZHANG Xiaojie, MA Liang, GUO Ting, YU Yong, DAI Hongjie, ZHOU Hongyuan, ZHANG Yuhao,

(1. College of Food Science, Southwest University, Chongqing 400715, China;2. Biological Science Research Center of Southwest University, Chongqing 400715, China)

Online:2019-10-15 Published:2019-10-25

摘要/Abstract

摘要： 制备含有不同质量浓度（0、0.3、0.5、0.8 g/L）迷迭香酸（rosmarinic acid，RosA）的兔皮明胶膜，采用明胶膜单独包装和以明胶膜作为内包、聚乙烯（polyethylene，PE）膜为外包两种方式对新鲜猪肉进行包装。结果表明：使用RosA明胶膜包装可有效抑制猪肉在冷藏过程中挥发性盐基氮含量、菌落总数和pH值的上升，并对脂肪氧化有一定抑制作用，且保鲜效果与实验选择范围内RosA的质量浓度呈正相关。0.8 g/L RosA明胶膜包装组与单纯PE包装组可分别使猪肉的货架期由4 d（对照组）延长至8 d和6 d，PE/0.8 g/L RosA明胶膜包装组则可将货架期延长至10 d。此外，通过测定色差、硬度等指标以及直观观察猪肉颜色，发现贮藏过程中PE/RosA明胶膜包装组较单独RosA明胶膜包装组可以更好地保持猪肉质构品质和色泽。因此，PE/RosA明胶膜可以作为一种有效的活性包装方式，用于肉类的冷藏保鲜。

关键词: 兔皮明胶, 迷迭香酸, 猪肉, 保鲜

Abstract: Rabbit skin gelatin films incorporated with different concentrations (0, 0.3, 0.5 and 0.8 g/L) of rosmarinic acid (RosA) were prepared and fresh pork was packaged using gelatin film alone, or gelatin film as an inner package coupled with polyethylene (PE) film as an outer package. This study showed that the composite films effectively inhibited the increase of total volatile basic nitrogen (TVB-N) content, total colony number and pH during refrigeration and also inhibited lipid oxidation. This effect was positively correlated with RosA concentration within the range used in this study. Compared with the control group, 0.8 g/L RosA-gelatin film packaging and PE packaging extended the shelf life of pork from 4 to 8 and 6 days, respectively, and PE/0.8 g/L RosA-gelatin film extended the shelf life to 10 days. In addition, by measuring the color, hardness and other indicators as well as visual observation of pork, it was found that PE/RosA-gelatin film better maintained the texture quality and color of pork compared with RosA-gelatin film. Therefore, PE/RosA-gelatin film can be used as an effective packaging for the preservation of meat quality during cold storage.

Key words: rabbit skin gelatin, rosmarinic acid, pork, preservation

中图分类号:

TS206.4

李媛，张晓洁，马良，郭婷，余永，戴宏杰，周鸿媛，张宇昊,. 兔皮明胶/迷迭香酸复合膜在猪肉冷藏保鲜中的应用效果[J]. 食品科学, 2019, 40(19): 281-287.

LI Yuan, ZHANG Xiaojie, MA Liang, GUO Ting, YU Yong, DAI Hongjie, ZHOU Hongyuan, ZHANG Yuhao,. Application of Rabbit Skin Gelatin/Rosmarinic Acid Composite Film in Pork Quality Preservation during Cold Storage[J]. FOOD SCIENCE, 2019, 40(19): 281-287.

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兔皮明胶/迷迭香酸复合膜在猪肉冷藏保鲜中的应用效果

Application of Rabbit Skin Gelatin/Rosmarinic Acid Composite Film in Pork Quality Preservation during Cold Storage

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