经煎煮过的甘草饮片和提取甘草膏、甘草甜素制品后的甘草渣中含有大量的黄酮类化合物, 其量超过甘草甜素1倍以上。作者提供分离这些黄酮类化合物, 并回收木质素和纤维素的工艺方法, 为甘草的综合利用开发研究打下基础。

It was found that residues left over after the extraction of radix glycyrrhizse for glycyrrhizin or preparation of glycyrrhiza extract contained substantial amount of flavonoids which may exceed twice as much glycyrrhizin. Processes for the seperation of the flavonoids and simultaneous recovery of some ligin and cellulose were developed which may provide a basis for the comprehensive utilization of this medicinal herb.