Cashew Nut (Anacardium occidentale L.) Skin Extract as a Free Radical Scavenger

Padmanabhan Rajini, S. (2011) Cashew Nut (Anacardium occidentale L.) Skin Extract as a Free Radical Scavenger. In: Nuts and Seeds in Health and Disease Prevention. Elsevier, pp. 301-308. ISBN 978-012375688-6

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Abstract

This chapter provides information on the free radical scavenging activity of cashew kernel testa. Cashew kernel testa (skin) is an important by-product obtained during the processing of cashew. With an annual global consumption of over 1,000,000 tons of cashew kernel, the resultant testa is a serious option for commercial exploitation. It has been reported to be a good source of hydrolyzable tannins. The tannin content of cashew kernel testa from various varieties of cashew samples has been quantified and reported to be higher than that of almond skin testa. Cashew kernel testa from different varieties and industrial samples has also been analyzed for protein, sugar, starch, and phenols, and significant variation in the composition of testa among different released varieties and industrial samples has been reported. Cashew kernel testa exhibits significant antioxidant activity due to the presence of radical scavenging polyphenols. Various extracts of cashew kernel testa have also been analyzed for protein, carbohydrate, and fiber content. Methanol-extracted cashew kernel testa was reported to contain higher protein, carbohydrate, and crude fiber contents, compared to cashew kernel testa. Methanol extraction of cashew kernel testa also resulted in a considerable decrease in tannin content, while it improved the water absorption capacity, and the in vitro digestibility of protein decreased considerably. Tannin-stripped cashew kernel testa has protein, starch, and sugar content comparable to that of other seed testa and hence may be viewed as a probable food and animal feed additive

Item Type:	Book Section
Uncontrolled Keywords:	Cashew Nut, free radical scavenger
Subjects:	600 Technology > 08 Food technology > 19 Lipids-oils/fats > 05 Nuts
Divisions:	Food Protectants and Infestation Control
Depositing User:	Somashekar K S
Date Deposited:	23 Sep 2025 06:31
Last Modified:	23 Sep 2025 06:31
URI:	http://ir.cftri.res.in/id/eprint/19812

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