Optimization for the Anthocyanin Extraction from Purple Sweet Potato Roots, Using Response Surface Methodology

Abstract

Anthocyanins were successfully extracted from 'TNG 73' purple sweet potato roots by using acidic-ethanol extraction. Three extraction parameters including HCl concentration, extraction time, and temperature were evaluated. 使用酸化乙醇萃取法成功地從'TNG 73'紫甘藷中萃取出花青素，三個萃取參數包括HCl濃度、萃取時間、以及萃取溫度都在本研究中被仔細評估，反應曲面法(Response surface methodology, RSM)是一種很有效的統計工具，可用來建立廻歸模組，而此廻歸模組的係數經計算後，可用來預測萃取製程的表現及決定最佳的萃取操作條件，本研究結果顯示，12% HCl(1.5 N HCl和乙醇的混合物)、45分鐘萃取時間、以及50°C萃取溫度是'TNG 73'紫甘藷花青素的最佳萃取條件。