【摘要】 以黄姜为原料,研究提取皂甙元的清洁生产工艺。本工艺采用溶剂把黄姜中的皂甙与淀粉、纤维素等成分分离,然后再将皂甙水解、过滤、中和、脱水、提取、重结晶,从而得到高纯度的皂甙元。研究表明:用4#溶剂提取皂甙效果较好;溶剂的回收率可达98%以上;水解的酸浓度为[H+]=0.5mol/l较好、水解的压力为0.7-0.8Mpa较适合、水解时间为6h。在这些条件下,皂甙元的得率可以达到95%以上。本工艺产生的生产废水不到传统工艺的10%,酸的用量约为传统工艺的10%,皂甙元的得率有所提高,生产周期也大大缩短了,资源的综合利用率明显提高。更多还原

【Abstract】 The clean production of extraction for the diosgenin with solutions from yam (Dioscorea zingiberensis C.H.Wright) had been studied. This clean production process firstly separated starch, cellulose with dioscin by solvent. Then the dioscin can be obtained. After hydrolyzing, filtration, neutralization, desiccation, extraction, re-crystallize, high purity diosgenin can be obtain. The results showed that solvent No.4 for diosgenin extraction was much better. The obtain rate can be above 98%, the hydrolyze conditions were 6 hours under 0.50mol/l acid, at pressure 0.7～0.8Mpa were better. The wastewater was less 90% than traditional process. On the other hand, the acid was less 90% than traditional process. The yield rate of diosgenin was higher. The period was shorter. The utilization rate of resources was greater.更多还原