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Preparation and characterization of a novel intelligent starch/gelatin binary film containing purple sweet potato anthocyanins for Flammulina velutipes mushroom freshness monitoring

文献类型： 外文期刊

作者： Zong, Zihao 1 ; Liu, Meng 5 ; Chen, Hangjun 1 ; Farag, Mohamed A. 6 ; Wu, Weijie 1 ; Fang, Xiangjun 1 ; Niu, Ben 1 ; Gao, Haiyan 1 ;

作者机构： 1.Minist Agr & Rural Affairs, Food Sci Inst, Key Lab Postharvest Handling Fruits, Beijing, Peoples R China

2.Key Lab Fruits & Vegetables Postharvest & Proc Tec, Hangzhou, Peoples R China

3.China Natl Light Ind, Key Lab Postharvest Preservat & Proc Fruits & Vege, Beijing, Peoples R China

4.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China

5.Ocean Univ China, Coll Food Sci & Engn, Qingdao, Peoples R China

6.Cairo Univ, Coll Pharm, Pharmacognosy Dept, Kasr El Aini St,PO 11562, Cairo, Egypt

关键词： Anthocyanins; PH indicator film; Flammulina velutipes; Intelligent packaging

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2023 年 405 卷

页码：

收录情况： SCI

摘要： In this study, intelligent food package was developed and characterized by loading purple sweet potato polyphenolic extract (SPS) into starch/gelatin film. The application of this film in indicating the freshness of Flammulina velutipes was also determined. The color of SPS buffer changed from red to blue and final yellow when pH increasing from 3 to 10. The blending film with starch/gelatin ratio of 1:1 wt showed a minimum water vapor permeability of 6.26 x 10(-11) gs(-1) m(-1) Pa-1. The value of elongation at break and tensile strength of the starch/gelatin film with starch/gelatin ratio of 1:1 wt increased to 78.89 % and 11.70 MPa. Upon its application to monitor of F. velutipes freshness level, SG11 film color changed from initially green to purplish gray and finally to yellow as F. velutipes deteriorated post storage. Our results suggested that SG11 films could be used as an intelligent packaging material in the future for other food products.

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