CAP@GO/PVC薄膜对生鲜牛肉糜的保鲜作用
2021-12-23阙小峰司文会徐良方志成高岳
阙小峰 司文会 徐良 方志成 高岳






摘 要:以氧化石墨烯(graphene oxide,GO)为载体吸附辣椒素(capsaicin,CAP),负载率达95%以上,采用喷涂成膜的方式制备CAP@GO/聚氯乙烯(polyvinyl chloride,PVC)释放型抑菌抗氧化包装薄膜,协同气调包装和低温等离子体技术探究其在包装生鲜牛肉糜贮藏期内的保鲜作用。结果表明:低温贮藏14 d内,CAP@GO/PVC薄膜中CAP的活性缓释作用有效抑制了牛肉糜菌落总数、假单胞菌和大肠菌群的滋生,数量分别减少1.07、1.03、1.08(lg(CFU/g)),保鲜效果优于单一保鲜技术;同时,CAP@GO/PVC薄膜能够延缓牛肉糜脂质过氧化,硫代巴比妥酸反应物值最大减少值为1.88 mg/kg,脂质氧化程度降低约66.4%,延长其货架期。
关键词:辣椒素;氧化石墨烯;牛肉糜;保鲜;聚氯乙烯薄膜
Effect of Polyvinyl Chloride Films Incorporated with Capsaicin-Loaded Graphene Oxide (CAP@GO) in
Preserving the Quality of Minced Beef
QUE Xiaofeng1,2, SI Wenhui1, XU Liang1,2, FANG Zhicheng3, GAO Yue1
(1.College of Food Science and Technology, Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China;
2.Jiangsu Engineering Technology Research and Development Center for Fresh Agricultural Products Preservation, Suzhou 215008, China; 3.Suzhou Tester Detection Technology Co. Ltd., Suzhou 215006, China)
Abstract: In this investigation, capsaicin (CAP) was adsorbed onto graphene oxide (GO) with a loading efficiency of more than 95% to obtain CAP-loaded GO (CAP@GO). Sustained-release polyvinyl chloride (PVC) films incorporated with CAP@GO as an antimicrobial and antioxidant agent were prepared for food packaging. The efficacy of this film combined with modified atmosphere packaging and atmospheric cold plasma (ACP) in preserving the quality of fresh minced beef was evaluated. The results showed that the composite film, by virtue of sustained release of CAP, inhibited the growth of total viable count, Pseudomonas and coliform bacteria in minced beef during low temperature storage up to 14 days, decreasing them by 1.07, 1.03 and 1.08 (lg(CFU/g)) on day 14 compared with the control group, respectively. The combined treatment was more effective than the single treatment. Furthermore, the composite film delayed lipid peroxidation in minced beef, decreasing the thiobarbituric acid reactive substances (TBARs) value by up to 1.88 mg/kg and the degree of lipid peroxidation by 66.4% and hence prolonging the shelf life.
Keywords: capsaicin; graphene oxide; minced beef; preservation; polyvinyl chloride film
DOI:10.7506/rlyj1001-8123-20210424-110
中圖分类号:TS205.9 文献标志码:A 文章编号:1001-8123(2021)11-0038-06
引文格式:
阙小峰, 司文会, 徐良, 等. CAP@GO/PVC薄膜对生鲜牛肉糜的保鲜作用[J]. 肉类研究, 2021, 35(11): 38-43. DOI:10.7506/rlyj1001-8123-20210424-110. http://www.rlyj.net.cn
QUE Xiaofeng, SI Wenhui, XU Liang, et al. Effect of polyvinyl chloride films incorporated with capsaicin-loaded graphene oxide (CAP@GO) in preserving the quality of minced beef[J]. Meat Research, 2021, 35(11): 38-43. DOI:10.7506/rlyj1001-8123-20210424-110. http://www.rlyj.net.cn
我国生鲜食品资源丰富,但保鲜技术和设备却相对滞后,生鲜食品易在微生物、内源酶及生物化学反应等作用下降低或失去营养价值。生鲜肉类由于其自身特性更易发生腐败变质,如何保鲜防腐成为生鲜肉类研究的方向之一。在传统生鲜食品速冻、气调及辐照等保鲜技术基础上,近年来活性成分保鲜技术以其生物安全性、药效缓释性而逐渐成为生鲜食品保鲜的一个研究方向,称之为活性包装,是通过改变包装食品环境条件来延长其货架期或改善安全性和感官特性,同时保持食品品质的一种包装技术[1]。塑料薄膜是食品包装的主要材料之一,目前国内……
