Konjac glucomannan/ carboxylated cellulose nanofiber-based edible coating with tannic acid maintains quality and prolongs shelf-life of mango fruit
文献类型: 外文期刊
作者: Jiaxin Wang;Mian Qin;Wei Wang;Yining Xia;Guang Wu;Hao Deng;Qiong Lin
作者机构:
关键词: Carboxylated cellulose nanofiber;Coating;Konjac glucomannan;Mango;Tannic acid
期刊名称: Food Chemistry
ISSN: 0308-8146
年卷期: 2025 年 478 卷
页码:
收录情况: SCIE(2025版) ; ; EI(2025版)
摘要: Polysaccharide films containing antimicrobial agents have good prospects for application in the fruit industry. However, poor film-forming properties of polysaccharides remain a major challenge. In this work, the konjac glucomannan (KGM) was modified by cross-linking with carboxylated cellulose nanofibers (CNF) to form a composite coating film, and tannic acid (TA) was provided as an active ingredient to improve the antibacterial effect. The optimal formula was: CNF/KGM (w:w) 3.05:10, TA content was 0.40 %, and glycerol content was 0.57 %. KGM/CNF/TA film had good compatibility and a compact structure. The thermal stability and water contact angle of the composite film were higher than those of KGM. Furthermore, the KGM/CNF/TA film reduced the black spot incidence, maintained fruit firmness, decreased ethylene release and respiration rate, increased the antioxidant enzyme activities, and extended the shelf-life of mango. Thus, KGM/CNF/TA is expected to expand polysaccharide/ polymer composite application in the fruit industry.
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