摘要
以乙醇作为萃取剂,采用微波法从大豆中提取异黄酮,分别考察了微波功率、乙醇的体积分数、料液比和微波辐射时间对异黄酮提取量的影响。结果表明:从大豆中提取异黄酮的最佳工艺条件:微波功率400 W、乙醇的体积分数50%、料液比1∶4、微波辐射时间5 min。在最佳工艺条件下,异黄酮的提取量1.3205 mg.g-1。与传统溶剂法相比,微波法不仅节省时间,而且提取效率高,是一种快速、高效、节能的新型提取工艺。
Isoflavonoids were extracted from soybean with alcohol as extractant assisted by microwave irradiation.The extracted isoflavonoids were measured by spectrophotography.The effect factors such as microwave power,volume fraction of ethanol,the rate of garlic slurry to ethanol and microwave irradiation time on extraction of isoflavonoids from soybean were investigated.The obtained optimum conditions were as follows： that microwave power was 400 W,volume fraction of ethanol was 50%,the rate of soybean slurry to ethanol was 1∶4 and microwave irradiation time was 5 min.Under the optimum condition withdrawal of isoflavonoid was 1.3205 mg·g-1.Compared with the traditional solvent extraction,microwave irradiation extraction for isoflavonoids from soybean has the characteristics of shorter extracting time and higher efficiency and lower cost.
出处
《大豆科学》
CAS
CSCD
北大核心
2011年第1期144-146,共3页
Soybean Science
关键词
大豆
黄酮
提取
微波
分光光度法
Soybean
Flavonoids
Extraction
Microwave irradiation
Spectrophotography
作者简介
于海莲（1979-），女，硕士，讲师，主要从事天然产物提取、功能材料及其添加剂的研究。E-mail：yhl19791027@126．com。
