Characterization and antibacterial properties of fish skin gelatin/guava leaf extract bio-composited films incorporated with catechin

被引：17

作者：

Chou M.-Y. ^{[1
]}

Osako K. ^{[2
]}

Lee T.-A. ^{[3
]}

Wang M.-F. ^{[1
]}

Lu W.-C. ^{[4
]}

Wu W.-J. ^{[3
]}

Huang P.-H. ^{[5
]}

Li P.-H. ^{[1
]}

Ho J.-H. ^{[3
]}

机构：

[1] Department of Food and Nutrition, Providence University, Taichung

[2] Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Tokyo

[3] Department of Food Science, Tunghai University, Taichung

[4] Department of Food and Beverage Management, Chung-Jen Junior College of Nursing, Health Sciences and Management, Chia-Yi City

[5] School of Food, Jiangsu Food and Pharmaceutical Science College, Jiangsu Province, Huai'an City

来源：

LWT | 2023年 / 178卷

关键词：

Antibacterial; Bio-composited film; Catechin; Eco-friendly biodegradability; Guava-leaf extract;

D O I：

10.1016/j.lwt.2023.114568

中图分类号：

学科分类号：

摘要：

In recent years, biodegradable materials (carbohydrates, proteins, and lipids) have similar properties to plastic materials, which can be decomposed and will not cause environmental pollution. Thus, they can be developed into edible films as food packaging materials; however, their manufacturing costs have increased several folds. Taiwanese tilapia (Oreochromis mossambicus) contains considerable gelatin, a by-product of the food processing industry, which can be made into an edible film combined with catechin and guava leaf extract as the principal polyphenol and flavonoid, respectively, with antioxidant and antibacterial activities. Therefore, this study investigates the properties of edible films combined with catechin-guava leaf extract at different ratios. Results showed that the film's thickness ranged from 0.053 to 0.068 mm. The film had a good barrier effect on UV rays. In addition, the edible film exhibited good antioxidant ability; it had more evident antibacterial activity against E. coli and S. aureus. Consequently, the catechin-guava leaf extract ratio of 30–70 had a better elongation at break and film thermal stability, indicating its great application potential. However, further development is required compared with polyvinyl chloride, particularly with regard to mechanical efficiency and transparency. © 2023 The Authors

引用

共 46 条

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