Extraction and purifiction technology of total flavone compounds from Herba hedyotids chrysotrichae | 黄毛耳草总黄酮提取与纯化工艺的研究
2009
Liu Honghao, Anhui Agricultural University, Hefei(China), School of Life Science | Yang Shigao, Anhui Agricultural University, Hefei(China), School of Life Science | Wang Weiyun, Anhui Agricultural University, Hefei(China), School of Life Science
chinois. 用L9（3. ）正交试验设计研究黄毛耳草总黄酮的提取工艺。结果表明，最佳工艺为用体积12倍70％的乙醇提取2次，每次1．5h。选用NKA-9极性大孔树脂纯化总黄酮，并且用pH为5的水淋洗除去多糖，最后所得总黄酮含量为43．1％。[著者文摘]
Afficher plus [+] Moins [-]anglais. The extraction technology of total flavone compounds in Herba hedyotids chrysotrichae was studied by using L9 （3. ） orthogonal experiment design in this paper. The optimum extraction technology was to extract flavones compounds for 1.5 h with 70% ethanol,which was twelve times of volume as large as the weight of the Herba hedyotids chrysotrichae, and extracting 2 times. NKA-9 type resin was chosen to purify total flavone compounds, and polysaccharid was removed by washing with water （pH5）. Finally, total flavone compounds content reached at 43.1%.
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