基于均匀设计的锦绣杜鹃花色苷提取工艺优选  

OPTIMIZATION OF EXTRACTION TECHNOLOGY OF ANTHOCYANINS FROM RHODODENDRON PULCHRUM SWEET. FLOWERS BASED ON UNIFORM DESIGN

作　　者：沈腾滨 张梅[1,2] 唐旭艳[1] 李臻珣 

机构地区：[1]闽江学院化学与化学工程系,福建福州350108 [2]福建省绿色功能材料重点实验室,福建福州350108

出　　处：《井冈山大学学报（自然科学版）》2016年第5期21-24,共4页Journal of Jinggangshan University (Natural Science)

基　　金：国家级大学生创新创业训练计划项目(201410395016);福建省中青年教师教育科研项目(JA14252);闽江学院校级科研专项(MYZ14004)

摘　　要：本研究以锦绣杜鹃花为原料,以花色苷提取率为衡量指标,选取乙醇浓度、液料比、超声时间、超声温度为考察因素,在单因素试验基础上运用U12(6~4)进行均匀试验设计,并通过逐步回归优选出杜鹃花花色苷的提取工艺为:乙醇浓度为80%,液料比为120 m L·g^(-1),超声时间为50 min,超声温度为40℃。应用优化得到的工艺条件进行验证试验,取得了较好的效果,表明该优化的提取条件稳定、方便、适用。Rhododendron pulchrum flowers as materials, anthocyanins extraction rate as evaluation index, and the ethanol concentration, liquid-solid ratio, extraction time and extraction temperature as the key factors, extraction technology of anthocyanins from flowers was studied using single-factor experiments. Then by U12（64） uniform design experiment, the optimization of anthocyanins extraction technique was determined. The result showed that the optimal conditions of extraction were obtained as follows： 80% of ethanol concentration, liquid-solid ratio of 120 mL·g^-1, 50 min of extraction time, 40 ℃ of extraction temperature. The optimal technology＇s verification test was satisfactory. This extraction process was stable, convenient and applicable.

关 键 词：均匀设计 锦锈杜鹃 花色苷 提取工艺 

分 类 号：TS262.7[轻工技术与工程—发酵工程]