Study on preparation of sagittatoside B with epimedin B converted from cellulase.
- Author:
Feng-Juan XU
;
E SUN
;
Zhen-Hai ZHANG
;
Li CUI
;
Xiao-Bin JIA
- Publication Type:Journal Article
- MeSH:
Cellulase;
metabolism;
Drug Compounding;
methods;
Flavonoids;
chemistry;
Hydrogen-Ion Concentration;
Hydrolysis;
Temperature;
Time Factors
- From:
China Journal of Chinese Materia Medica
2014;39(2):235-239
- CountryChina
- Language:Chinese
-
Abstract:
To prepare sagittatoside B with epimedin B Hydrolyzed from cellulase. With the conversion ratio as the index, the effects of pH value, temperature, reaction time, dosage of enzyme and concentration of substrates on the conversion ratio were detected. L9 (3(4)) orthogonal design was adopted to optimize the preparation process. Hydrolyzed products were identified by MS, 1H-NMR, and 13C-NMR. The results showed that the optimum reaction conditions for the enzymatic hydrolysis were that the temperature was 50 degrees C, the reaction medium was pH 5.6 acetic acid-sodium acetate buffer solution, the concentration of substrates was 20 g x L(-1), the mass ratio between enzyme and substrate was 3: 5, and the relative molecular mass of the reaction product was 646.23. NMR data proved that the product was sagittatoside B. The process is simple and reliable under mild reaction conditions, thus suitable for industrial production.
