期刊
FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL
卷 16, 期 3, 页码 209-216出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1082013209353983
关键词
chestnut; almond; by-products; antioxidant activity; total phenols
资金
- Foundation for Science and Technology (Portugal) [SFRH/BD/29060/2006]
- PIREFI
- Fundação para a Ciência e a Tecnologia [SFRH/BD/29060/2006] Funding Source: FCT
The antioxidant properties of almond green husks (Cvs. Duro Italiano, Ferraduel, Ferranhes, Ferrastar and Orelha de Mula), chestnut skins and chestnut leaves (Cvs. Aveleira, Boa Ventura, Judia and Longal) were evaluated through several chemical and biochemical assays in order to provide a novel strategy to stimulate the application of waste products as new suppliers of useful bioactive compounds, namely antioxidants. All the assayed by-products revealed good antioxidant properties, with very low EC50 values (lower than 380 mu g/mL), particularly for lipid peroxidation inhibition (lower than 140 mu g/mL). The total phenols and flavonoids contents were also determined. The correlation between these bioactive compounds and DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity, reducing power, inhibition of beta-carotene bleaching and inhibition of lipid peroxidation in pig brain tissue through formation of thiobarbituric acid reactive substances, was also obtained. Although, all the assayed by-products proved to have a high potential of application in new antioxidants formulations, chestnut skins and leaves demonstrated better results.
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