Study on Anthocyanidin Extraction from Flower of Rhododendron L. and Its Stability  

杜鹃花色素的提取及稳定性研究(英文)

作　　者：罗向东[1] 谢建坤[1] 张乐华 戴亮芳[1] 

机构地区：[1]江西师范大学生命科学学院,江西南昌330022 [2]江西省庐山植物园,江西庐山332900

出　　处：《Agricultural Science & Technology》2009年第3期139-143,共5页农业科学与技术（英文版）

基　　金：Supported by Natural Science Foundation (30860120 );Scientific Planning Project of Jiangxi Provincial Education Department(GJJ08159);Initiating Fund for Doctors in Jiangxi Normal University(1881);Development Fund for youth in Jiangxi Normal University(2398)~~

摘　　要：[Objective] The aim of this study was to further investigate and utilize the natural anthocyanidin from Rhododendron L. [Method] Using Rhododendron L. with four different colors including white, pink, red and purple as the test materials, its anthocyanidin extraction methods were analyzed in this study to evaluate the spectral properties and its stability of various anthocyanidin. [Result] The anthocyanidin from Rhododendron L. was perfectly extracted by methanol with 1% concentrated hydrochloric acid (V/V) and had better stability in this extraction solution. The further experiment in vitro indicated that the anthocyanidin from Rhododendron L. became stable with pH value of 0-3, but could not resistant to high temperature or strong light, and the alkaline condition had also great effects on its stability. [Conclusion] The methanol with 1% concentrated hydrochloric acid (V/V) has the best effect for extraction, and the anthocyanidin from Rhododendron L. is more stable in low temperature, weak light and acid conditions.[Objective] The aim of this study was to further investigate and utilize the natural anthocyanidin from Rhododendron L. [Method] Using Rhododendron L. with four different colors including white, pink, red and purple as the test materials, its anthocyanidin extraction methods were analyzed in this study to evaluate the spectral properties and its stability of various anthocyanidin. [Result] The anthocyanidin from Rhododendron L. was perfectly extracted by methanol with 1% concentrated hydrochloric acid （V/V） and had better stability in this extraction solution. The further experiment in vitro indicated that the anthocyanidin from Rhododendron L. became stable with pH value of 0-3, but could not resistant to high temperature or strong light, and the alkaline condition had also great effects on its stability. [Conclusion] The methanol with 1% concentrated hydrochloric acid （V/V） has the best effect for extraction, and the anthocyanidin from Rhododendron L. is more stable in low temperature, weak light and acid conditions.

关 键 词：Rhododendron L. Anthocyanidin Stability 

分 类 号：TQ611[化学工程—精细化工]