Preparation and characterization of chitosan derivatives modified with quaternary ammonium salt and quaternary phosphate salt and its effect on tropical fruit preservation

文献类型： 外文期刊

第一作者： Pan, Qingyan

作者： Pan, Qingyan;Zhou, Chuang;Yang, Ziming;He, Zuyu;Wang, Chao;Liu, Yunhao;Song, Shuhui;Gu, Hui;Hong, Keqian;Li, Puwang;Pan, Qingyan;Yu, Lijuan;Qu, Yunhui

作者机构：

关键词： HACC; Quaternary phosphonium modification; Food packaging; Antibacterial; Composite films

期刊名称：FOOD CHEMISTRY （ 影响因子：9.231； 五年影响因子：8.795 ）

ISSN： 0308-8146

年卷期： 2022 年 387 卷

页码：

收录情况： SCI

摘要： In this paper, HACC modified with (5-Carboxypentyl) (triphenyl) phosphonium bromide (HA-CS-NP) was synthesized. Then, a multifunctional food packaging composite film with good thermal stability and antibacterial functions was fabricated by HA-CS-NP and poly (vinyl alcohol) (PVA). The tensile strength and elongation at break of HA-CS-NP/PVA composite film at the weight ratio of 3/7 were 20.32 +/- 1.02 MPa and 65.73 +/- 3.29%, respectively. And, the inhibition rates of HA-CS-NP (0.5%) on Mango C. lagenarium and Papaya C. gloeosporioides on day 6 were up to 80.92 +/- 4.12%. Compared with CK group, the weight loss of experimental groups were 23.96 +/- 2.46 g/206 +/- 7.25 g (mangoes) and 59.45 +/- 3.06 g/496 +/- 6.37 g (papaya), reduced by 35.76 +/- 1.15%. Moreover, the final hardness value of the fruits coated with composite films was 4.94 +/- 0.23 kg/cm(3) and increased by 20.79 +/- 1.04%, and the rot index was reduced by 71.43 +/- 3.24%. The multifunctional HA-CS-NP/ PVA coating has broad prospects in the application of food packaging.

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