Intelligent colorimetric pH sensoring packaging films based on sugarcane wax/agar integrated with butterfly pea flower extract for optical tracking of shrimp freshness

被引：82

作者：

Hashim, Sulafa B. H. ^{[1
,2
]}

Tahir, Haroon Elrasheid ^{[1
]}

Li Liu ^{[1
]}

Zhang, Junjun ^{[1
]}

Zhai, Xiaodong ^{[1
]}

Mahdi, Amer Ali ^{[1
]}

Awad, Faisal Nureldin ^{[3
]}

Hassan, Mahmoud M. ^{[2
]}

Zou Xiaobo ^{[1
]}

Shi Jiyong ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Food & Biol Engn, 301 Xuefu Rd, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Alneelain Univ, Fac Agr Technol & Fish Sci, Dept Food Technol, Khartoum, Sudan

[3] Food Res Ctr, POB 213, Khartoum, Sudan

来源：

FOOD CHEMISTRY | 2022年 / 373卷

基金：

中国国家自然科学基金;

关键词：

Intelligent packaging; Sugarcane wax; Agar; Butterfly pea flower; Biomarker; Shrimp freshness; CARNAUBA WAX; ROSELLE ANTHOCYANINS; BIOACTIVE COMPOUNDS; EDIBLE FILMS; FOOD; STARCH;

D O I：

10.1016/j.foodchem.2021.131514

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel pH colorimetric film was prepared from various sugarcane wax (SW) concentrations (1, 1.5 and 2% w/v) on agar matrix (Agr) combined with butterfly pea flower (BF) extract for monitoring the shrimp freshness. A combination of BF anthocyanins with SW as lipid (hydrophobic) showed different changes in color under acidic conditions (pH 2-6) with slight changes under alkalinity (pH 7-12), which matched the visual color changes of two different ammonia vapors (50 and 100 mmol/l). FTIR, XRD spectra, and SEM micrographs revealed that SW was effectively fixed into the Agr-BF network during the film-forming process. The different homogenized SW films enhanced the physical and mechanical properties without significant differences in elongation and water vapor permeability. Remarkably, SW films displayed complete protection against UV-vis light (0%) and valuable reduction in visible light. This study presents SW colorimetric films as promising natural derivatives for smart packaging in tracking food freshness.

引用

页数：10

共 38 条

[1] Carboxymethyl cellulose-agar biocomposite film activated with summer savory essential oil as an antimicrobial agent [J].