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Citation: LI Qian, GAO Xiang-Tao, XU Jun-Qing, LIU Xiu-Hua. Hydrolysis Process of Dioscin Catalyzed by Ion Exchange Resin[J]. Chinese Journal of Applied Chemistry, ;2009, 26(4): 431-434. shu

Hydrolysis Process of Dioscin Catalyzed by Ion Exchange Resin

1.
Insititute of Fine Chemistry and Engineering, Henan University, Kaifeng 475001

Corresponding author: LI Qian,
Received Date: 6 March 2008
Available Online: 20 May 2008
Fund Project: 河南省科技厅(0624270019) (0624270019)河南省教育厅(2007530001) (2007530001)教育部重点实验室开放基金(KF0609)资助项目 (KF0609)

The hydrolysis process of dioscin catalyzed by ion exchange resin was studied systematically.The effects of reaction temperature,reaction time,catalyst dosage on the hydrolysis of dioscin were examined via orthogonal design and single-factor experiments.The optimum hydrolysis conditions were found to be:reaction temperature 80 ℃,reaction time 9 h,catalyst dosage 6 g.The result indicates that the concentration of H⁺ in the hydrolyzed solution catalyzed by ion exchange resin was only 0.2% of that by HCl,although the yield of diosgenin obtained under the catalysis of ion exchange resin is(about 70%) lower than that under the catalysis of HCl,it shows a great potential as a kind of green catalyst for the hydrolysis of dioscin.
- Dioscin,
- diosgenin,
- hydrolysis,
- ion exchange resin,
- orthogonal design
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