Valorization of Larix decidua Mill. bark by functionalizing bioextract onto chitosan films for sustainable active food packaging

被引：46

作者：

Agarwal, Charu ^{[1
]}

Koczan, Zsofia ^{[2
]}

Borcsok, Zoltan ^{[1
]}

Halasz, Katalin ^{[2
]}

Pasztory, Zoltan ^{[1
]}

机构：

[1] Univ Sopron, Innovat Ctr, Bajcsy Zsilinszky E Str 4, H-9400 Sopron, Hungary

[2] Univ Sopron, Paper Res Inst, Bajcsy Zsilinszky E Str 4, H-9400 Sopron, Hungary

来源：

CARBOHYDRATE POLYMERS | 2021年 / 271卷

关键词：

Active packaging; Chitosan film; Polyphenolic antioxidants; Larch bark; MECHANICAL-PROPERTIES; PHYSICAL-PROPERTIES; EXTRACTS; ANTIOXIDANT; POLYPHENOLS; STARCH; WASTE;

D O I：

10.1016/j.carbpol.2021.118409

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The present study explored the use of chitosan films functionalized with antioxidants extracted from Larix decidua Mill. bark for active packaging. The pristine chitosan and extract-incorporated chitosan films were evaluated for their structural, physico-mechanical, thermal, viscoelastic and antioxidant properties using advanced characterization techniques. The infrared spectroscopy revealed hydrogen bonding between the extract polyphenolic antioxidants and chitosan, whereas the surface microscopy studies indicated good compatibility between them. The addition of bark extract caused a significant increase in color parameters and solubility with reduction in swelling and elongation at break of the films. The thermal analysis indicated a drop in thermal stability of chitosan films modified with the extract. The dynamic mechanical analysis confirmed the extractpolymer interactions and the viscoelastic nature of the films. The incorporation of bark extract caused remarkable enhancement in the antioxidant activity of chitosan films. Overall, larch bark extract-functionalized chitosan films demonstrated promising potential for food packaging.

引用

页数：11

共 36 条

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