硫酸法提取黄姜中皂苷元的清洁生产研究

对提取黄姜中薯蓣皂苷元的清洁生产进行探讨,研究了水解最佳条件和水解液的循环利用。实验结果表明:在固定预发酵时间24 h,发酵温度40℃,水解时间4 h,萃取时间5 h的条件下,硫酸溶液浓度为1 mol/L、用量200 mL时,皂苷元收率最高为2.402%;水解液可以循环利用6次。采用此工艺,每生产1 t薯蓣皂苷元,可节约水246 m3,节省硫酸(ρ=1.84 g/m3)11.6 m3,少排放污水305 m3。

Cleansing produce research on extracting diosgenin from yam by sulfuric acid

This paper researches cleansing produce of extracting diosgenin from yam,and studies the optimal conditions of hydrolysis,reutilization of degest.The experiments show that the best yield of diosgenin is 2.402% when sulfuric acid solution strength is 1 mol/L and use level is 200 mL with fermentation time and fermentation temperature and hydrolysis time and extraction time are fixed as 24 h,40 ℃,4 h and 5 h,respectively.Degest can be reutilize for 6 times.It can save water 246 m3 and sulfuric acid 11.6 m3.It can reduce wastewater by 305 m3 when adopting the technology to produce 1 t production.