The present invention concerns a method for extracting cytisine from biomaterial wherein the biomaterial is contacted with an alkaline aqueous solution, but in the absence of any other co-solvent such as an organic phase. Cytisine is recovered from the alkaline aqueous extract by extraction of the extract with rapeseed oil which in turn is extracted with an acidic aqueous phase.
本发明涉及一种从
生物材料中提取
胞嘧啶的方法,其中
生物材料与碱性
水溶液接触,但不含任何其他助溶剂,如有机相。通过用菜籽油萃取碱性
水提取物中的
胞嘧啶,然后再用酸性
水相萃取。