Shellac and Aloe vera gel based surface coating for shelf life extension of tomatoes

被引：62

作者：

Chauhan, O. P. ^{[1
]}

Nanjappa, C. ^{[1
]}

Ashok, N. ^{[1
]}

Ravi, N. ^{[1
]}

Roopa, N. ^{[1
]}

Raju, P. S. ^{[1
]}

机构：

[1] Def Food Res Lab, Mysore 570011, Karnataka, India

来源：

JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE | 2015年 / 52卷 / 02期

关键词：

Shellac; Aloe vera; Coating; Shelf-life; Tomato; STORAGE;

D O I：

10.1007/s13197-013-1035-6

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Shellac (S) and Aloe vera gel (AG) were used to develop edible surface coatings for shelf-life extension of tomato fruits. The coating was prepared by dissolving dewaxed and bleached shellac in an alkaline aqueous medium as such as well as in combination with AG. Incorporation of AG in shellac coating improved permeability characteristics of the coating film towards oxygen and carbon dioxide and water vapours. The coatings when applied to tomatoes delayed senescence which was characterized by restricted changes in respiration and ethylene synthesis rates during storage. Texture of the fruits when measured in terms of firmness showed restricted changes as compared to untreated control. Similar observations were also recorded in the case of instrumental colour (L*, a* and b* values). The developed coatings extended shelf-life of tomatoes by 10, 8 and 12 days in case of shellac (S), AG and composite coating (S + AG) coated fruits, respectively; when kept at ambient storage conditions (28 +/- 2 degrees C).

引用

页码：1200 / 1205

页数：6

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