pH-responsive color indicator films based on methylcellulose/chitosan nanofiber and barberry anthocyanins for real-time monitoring of meat freshness

被引：223
|
作者：
Alizadeh-Sani, Mahmood [1 ]
Tavassoli, Milad [2 ]
Mohammadian, Esamil [3 ]
Ehsani, Ali [4 ]
Khaniki, Gholamreza Jahed [1 ]
Priyadarshi, Ruchir [5 ]
Rhim, Jong-Whan [5 ]
机构：
[1] Univ Tehran Med Sci, Sch Publ Hlth, Dept Environm Hlth, Food Safety & Hyg Div, Tehran, Iran
[2] Tabriz Univ Med Sci, Fac Nutr & Food Sci, Dept Food Sci & Technol, Student Res Comm, Tabriz, Iran
[3] Univ Tehran Med Sci, Sch Pharm, Dept Med Chem, Tehran, Iran
[4] Tabriz Univ Med Sci, Fac Nutr & Food Sci, Nutr Res Ctr, Dept Food Sci & Technol, Tabriz, Iran
[5] Kyung Hee Univ, BioNanocomposite Res Inst, Dept Food & Nutr, 26 Kyungheedae Ro, Seoul 02447, South Korea
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2021年 / 166卷
基金：
新加坡国家研究基金会;
关键词：
Barberry anthocyanin; Chitosan nanofiber; Methylcellulose; Color indicator; Smart packaging; LINKED METHYL CELLULOSE; PACKAGING FILMS; RED CABBAGE; ANTIOXIDANT; CHITOSAN; EXTRACTS; PURPLE; NANOPARTICLES;
D O I：
10.1016/j.ijbiomac.2020.10.231
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A new pH-responsive color indicator film was prepared by blending barberry anthocyanin (BA) with methylcellulose (MC)/chitosan nanofiber (ChNF) composite film. The addition of ChNF and BA increased the mechanical and water barrier properties but reduced the UV-vis light transmittance of the composite film. Anthocyanin showed proper compatibility with the composite film. The color indicator film showed an apparent color change in response to pH changes and ammonia gas, being suitable for indicating the change in food pH, the formation of volatile nitrogen compounds, and food decay. The color indicator film changed clearly from reddish-pink to pale peach and finally to yellow when exposed to different pH buffers. However, in response to ammonia vapor, the color changed from pink to pale green and yellow. Besides, the color indicator film exhibited remarkable antioxidant activity. Therefore, the pH-sensing color indicator film can be used as a smart indicator for real-time freshness monitoring of meat and seafood products. (c) 2020 Elsevier B.V. All rights reserved.
引用
收藏
页码：741 / 750
页数：10
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