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Effects of grape seed extract on the properties of pullulan polysaccharide/xanthan gum active films for apple preservation

文献类型： 外文期刊

作者： Zheng, Meixia 1 ; Zhu, Yujing 1 ; Zhuang, Yuanhong 2 ; Tan, Kok Bing 3 ; Chen, Jianfu 4 ;

作者机构： 1.Fujian Acad Agr Sci, Agr Bioresources Res Inst, Fuzhou 350003, Fujian, Peoples R China

2.Minnan Normal Univ, Sch Biol Sci & Biotechnol, Zhangzhou 363000, Peoples R China

3.Huaqiao Univ, Integrated Nanocatalysts Inst INCI, Coll Chem Engn, Xiamen 361021, Peoples R China

4.Zhangzhou Inst Technol, Coll Food Engn, Zhangzhou 363000, Peoples R China

关键词： Grape seed extract; Shelf-life; Antibacterial and antioxidant

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）

ISSN： 0141-8130

年卷期： 2023 年 241 卷

页码：

收录情况： SCI

摘要： Grape seed extract (GSE) was added to pullulan polysaccharide (PP)/xanthan gum (XG) as composite film (PP/ XG/GSE or PXG). The observed composite morphology indicated their biocompatibility. Sample PXG100 (contain 100 mg/L GSE) demonstrated the best mechanical properties, with tensile strength of 16.62 +/- 1.27 MPa, and the elongation at break of (22.60 +/- 0.48)%. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activity of PXG150 were the highest at (81.52 +/- 1.57)% and (90.85 +/- 1.54)%, respectively. PXG films also demonstrated inhibitory effects on Staph-ylococcus aureus, Escherichia coli, and Bacillus subtilis. The PXG films could also prolong the shelf life of fresh-cut apples because it could decrease the rate of weight loss and retain more vitamin C and total polyphenol even on the 5th day. The weight loss rate of PXG150 was decreased from (8.58 +/- 0.6)% (control) to (4.15 +/- 0.19)%. It was able to achieve vitamin C and total polyphenol retention rate of 91 % and 72 %, respectively, which was significantly higher that the control sample. Therefore, GSE had contributed in enhancing the antibacterial, antioxidant properties, mechanical strength, UV protection and water resistance in PXG composite films. This effectively extend the shelf life of fresh-cut apples, which it will be an excellent food packaging material.

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