Effect of Waste Green Algal Biomass Extract Incorporated Chitosan-Based Edible Coating on the Shelf Life and Quality Attributes of Tomato

被引:19
|
作者
Mondal, Kona [1 ]
Goud, Vaibhav V. [1 ]
Katiyar, Vimal [1 ]
机构
[1] Indian Inst Technol Guwahati, Dept Chem Engn, Gauhati 781039, Assam, India
来源
ACS FOOD SCIENCE & TECHNOLOGY | 2022年 / 2卷 / 07期
关键词
edible coating; algal biomass; antioxidant; postharvest loss; shelf life; ULTRASOUND-ASSISTED EXTRACTION; ASCORBIC-ACID; CHERRY TOMATO; POSTHARVEST QUALITY; MAINTAIN QUALITY; ESSENTIAL OIL; LYCOPENE; FRUIT; SAFETY; FILMS;
D O I
10.1021/acsfoodscitech.2c00174
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
A de-oiled crude green algal ethanolic extract (CAEE) incorporated chitosan (CS)-based edible coating material was formulated and applied on red tomatoes, aiming to minimize postharvest loss and prolonging the shelf life with improved quality attributes. The waste biomass of Dunaliella tertiolecta was subjected to ultrasound-assisted solid-liquid extraction for obtaining an antioxidant-rich extract. Response surface methodology was used for optimizing the process of extraction. The coating materials were developed by mixing the aqueous CS (1 wt %) solution in mild acetic acid medium (0.3% v/v) with CAEE at varying concentrations (0, 2, and 4% w/v). Millipore water was used as a control coating material for drawing the comparison. The coated and control tomatoes were stored for 30 days under ambient conditions (27-30 degrees C and 60-70% RH). The results indicated that the tomatoes coated with CS/CAEE 4% coating formulation exhibited superior effectiveness for extending the shelf life with improved physicochemical properties such as DPPH antioxidant activity; reducing sugar, lycopene, and ascorbic acid contents; and firmness by restricting faster respiration and ripening rates during ambient storage.
引用
收藏
页码:1151 / 1165
页数:15
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