从葡萄籽中提取原花青素的工艺研究

Study of Extraction of Procyanidins from Grape Seeds

摘要:

本文在乙醇回流浸提法的基础上，考察超声辅助乙醇回流浸提法、微波辅助乙醇浸提法和乙醇回流浸提法这三种方法对原花青素提取率的影响。结果表明，微波辅助乙醇回流浸提法有利于提高原花青素的提取率，其最佳工艺条件下的葡萄籽原花青素的提取率为1.847%，纯度为43.95%，提取率和纯度比超声辅助乙醇回流浸提法提高了22.2%和14.0%，比单纯用乙醇回流浸提法提高了69.8%和12.1%。

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.