乳酸催化大豆异黄酮糖苷水解的工艺研究

Synthetic Research of Soybean Isoflavone Glycoside Hydrolyzed into Isoflavone Aglucon by Lactic Acid Catalysis

研究乳酸催化水解大豆异黄酮糖苷的最佳工艺条件。以大豆异黄酮糖苷的水解率为评价指标,通过单因素试验对水解过程中的不同影响因素进行考察,运用正交试验优化了乳酸水解大豆异黄酮糖苷的反应条件,结果为,水解温度163℃,水解时间2.5 h,乳酸水溶液浓度2.0 mol/L,水解率可达100%。优选所得的大豆异黄酮糖苷水解生成苷元的工艺简单易行,实用性高。

The optimum conditions of soybean isoflavone glycoside hydrolyzed into isoflavone aglucon by lactic acid catalysis were found. The hydrolysis rate of soybean isoflavone aglucon was taken as evaluation index. The hydrolysis process conditions were optimized by single factor and orthogonal tests. The optimum hydrolysis conditions of soybean isoflavone glycoside hydrolyzed into isoflavone aglucon by lactic acid catalysis： reaction temperature was 163 ℃; Reaction time was 2.5 h, solution concentration of lactic acid was 2.0 mol/L, hydrolysis rate was above 100%. It explored a simple and stable technologic way on soybean isoflavone glycoside hydrolyzed into isoflavone aglucon. It made up the technical defects of aglucon conversion process and had higher applied value.