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Recovery of polyphenols from red grape pomace and assessment of their antioxidant and anti-cholesterol activities

Paper ID Volume ID Publish Year Pages File Format Full-Text
32921 44951 2016 7 PDF Available
Title
Recovery of polyphenols from red grape pomace and assessment of their antioxidant and anti-cholesterol activities
Abstract

•Sequential water and ethanol extractions allow polyphenol recovery from grape pomace.•Digestion with Celluclast enzyme improves the amount of polyphenols released from pomace.•Red grape pomace extracts exert antioxidant and cholesterol-lowering activities.

The present work aimed at the recovery and characterization of polyphenolic compounds extracted from red grape pomace (Vitis vinifera L.), a winemaking by-product. Polyphenolic compounds of wet (WP) and dried (DP) red pomace were recovered by enzymatic digestions and ethanol-based extractions. Fungamyl and Celluclast enzymes were found to be the most effective in enhancing polyphenol release from WP. WP samples showed the highest capacity of releasing polyphenols with 2 h control 24°C and 2 h 1% Celluclast resulting as the best treatments. A significantly lower amount of polyphenols was recovered from DP most probably as a consequence of the pomace drying. The best extracts contained high amounts of total polyphenols, flavonoids, tannins and anthocyanins and exerted antioxidant and cholesterol-lowering activities. The results support the possibility of exploiting the extracts coming from grape processing by-products as ingredients for functional and innovative products in the nutraceutical, pharmaceutical or cosmetic fields.

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Recovery of polyphenols from red grape pomace and assessment of their antioxidant and anti-cholesterol activities
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 33, Issue 3, 25 May 2016, Pages 338–344
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us