分离纯化酒花黄腐酚初探

为了简化工艺,降低纯化黄腐酚的成本,将粉碎后的酒花先用超临界CO2萃取,收集酒花萃余物,以甲醇(乙醇)作为提取剂,对酒花萃余物进行超声波提取;浓缩的萃取液,与硅藻土混合均匀,先后经2种洗脱液洗脱,将收集到的第2种洗脱液经过滤膜过滤、低温浓缩干燥处理后,即可得到黄腐酚纯品,纯度为86.2%。纯化后的黄腐酚为黄色粉末状固体,经重结晶纯度可达97.8%以上。

Process for Producing Xanthohumol Present by Supersonic and Kieselguhr

To simplify the process and lower the cost of the purification in producing xanthohumol present by kieselguhr,the hops powder was extracted with Supercritical carbon dioxide.The resultant extraction residue of hop was then extracted with Methanol(ethanol)by supersonic.The organic solvent was concentrated,and was mixed homogeneously with kieselguhr.This mixture was eluted by two different solvent mixtures.The second solvent mixture was filtrated and freeze-dried,then the yellow solid product obtained has a xanthohumol content of 86.2%(w/w)by weight.This yellow solid was re-crystallized,and the purity of xanthohumol was 97.8%(w/w).