EXTRACTION AND CHARACTERIZATION OF RESVERATROL FROM VEGETABLE WASTE FROM VINES

Abstract

Vine shoots resulting from vine pruning can become valuable products of interest for many industries. Research conducted to date showed that resveratrol is found in many parts of the vine. The aim of the present study was to determine the resveratrol content in Romanian vine sprouts samples by direct injection into the HPLC instrument coupled with diode array detector after being filtered through 0.45 μm PTFE membrane filters. The resveratrol content varied from 5.44 mg/100 g to 10.27 mg/100 g in ethanolic extracts. For aqueous extract, the resveratrol was found in only two samples in very low concentration. Thise paper aimed to contribute to the research on the capitalization of residual products from viticulture industry.

Keywords

• sprouts
• antioxidant capacity
• hplc
• polyphenols
• trans-resveratrol