Guo Ri-Xin, Yu Xian-Kuo, Zhang Xiao, Luo Han-Yan, Xu Meng-Ying, Lu Ya-Qi, Tang Li-Ying, Wang Zhu-Ju
Institute of Chinese Materia Medica, Chinese Academy of Chinese Medical Sciences, Beijing 100700, China.
School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, China.
Zhongguo Zhong Yao Za Zhi. 2018 Aug;43(15):3145-3149. doi: 10.19540/j.cnki.cjcmm.20180611.002.
References and our previous experiment showed that the contents of glycosides were significantly decreased,while the contents of aglycones were significantly increased after processing of Cassiae Semen.It may be related to its glycosidases or the heating process. In order to investigate the reasons, high performance liquid chromatographic (HPLC) was used to study the effects of these two factors on contents of Cassiae Semen's main chemical components in processing. The results showed that glycoside hydrolases was present in Cassiae Semen and could rapidly hydrolyze glycosides from Cassiae Semen into aglycones in suitable temperature with sufficient water.However,it didn't show effect on contents change of main constituents in the procedure of Cassiae Semen processing.The reason for content decrease of glycosides and content increase of aglycones in processed Cassiae Semen was glycoside bond cracking to produce corresponding aglycone at high temperature.This study further provides basis for further revealing of the processing mechanism of Cassiae Semen.
参考文献及我们之前的实验表明,决明子炮制后糖苷含量显著降低,而苷元含量显著增加。这可能与其糖苷酶或加热过程有关。为探究原因,采用高效液相色谱法(HPLC)研究这两个因素对决明子炮制过程中主要化学成分含量的影响。结果表明,决明子中存在糖苷水解酶,在适宜温度和充足水分条件下能迅速将决明子中的糖苷水解为苷元。然而,它对决明子炮制过程中主要成分的含量变化没有影响。决明子炮制后糖苷含量降低、苷元含量增加的原因是高温下糖苷键断裂生成相应的苷元。本研究进一步为深入揭示决明子的炮制机制提供了依据。