Study of Extraction of Procyanidins from Grape Seeds
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Abstract:
Extraction of Procyanidins from grape was studied with three methods, including ultrasonic wave assisted extraction, microwave-assisted ethanol reflux extraction and ethanol reflux extraction. The results indicated that, among the three methods for procyanidins extraction, microwave-assisted ethanol reflux extraction was the most suitable one. Under the optimized microwave-assisted extraction conditions, the extraction rate and purity of propitious were 1.847% and 43.95%, respectively, which were 22.2% and 14.0% respectively higher than those by ultrasonic wave assisted extraction, and 69.8% and 12.1% respectively higher than those by ethanol reflux extraction.
