主 办:北 京 中 医 药 大 学
ISSN 1006-2157 CN 11-3574/R

JOURNAL OF BEIJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE ›› 2020, Vol. 43 ›› Issue (9): 769-775.doi: 10.3969/j.issn.1006-2157.2020.09.011

• Chinese Herbal Preparation • Previous Articles     Next Articles

Study on change in color and contents of three common ginsenosides of Hongshen steamed for different durations*

Qu Wenjia, Jia Tianying, Wang Haili, Xin Jieping, Wang Min, Bai Yuying, Xu Wenjuan, Li Xiangri#   

  1. Beijing Key Laboratory for Quality Evaluation of Chinese Medicinal Herbs, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
  • Received:2020-03-09 Published:2020-09-29
  • Contact: Prof. Li Xiangri, Ph.D., Doctoral Supervisor. Beijing University of Chinese Medicine. Intersection of Yangguang Nandajie Street and Baiyang Donglu Road, Liangxiang Campus of Beijing University of Chinese Medicine, Liangxiang Higher Education Park, Fangshan District, Beijing 102488. E-mail: lixiangri@sina.com
  • Supported by:
    National Natural Science Foundation of China (No. 81973480), Projects for Improving General Technical Requirements in National Drug Standards in 2018 (No. 2018Z009, No. 2018Z010)

Abstract: Objective To investigate the change in color and contents of three commonly seen ginsenosides Rg1, Re and Rb1 of Hongshen (Red Ginseng, Radix et Rhizoma Ginseng Rubra) at different steaming durations and provide reference for revising the standard for determination of ginsenosides in Pharmacopoeia of the People’s Republic of China (hereinafter referred to as the Chinese Pharmacopoeia). Methods Renshen (Ginseng, Radix et Rhizoma Ginseng) and Hongshen (steamed for different durations) were grounded into powder, the color of which were measured with colorimeter. The contents of ginsenosides Rg1, Re and Rb1 in the samples were determined with the method listed in the part of content determination of Hongshen in the Chinese Pharmacopoeia (ChP2015). The results were analyzed with SPSS 20.0 software. Results The results showed that with the increase in steaming time, the color luminance value L and the total color difference value E of Hongshen powder decreased gradually, while the chromaticity values a and b increased gradually. Meanwhile, the contents of ginsenosides Rg1 and Re demonstrated no significant change. However, the content of ginsenoside Rb1 increased gradually and there was significant difference in this regard between Hongshen steamed for 2 hours and Renshen (P<0.05). Conclusion As the steaming time increases, the color of Hongshen powder deepened gradually and the content of ginsenoside Rb1 increased significantly. Therefore, it is suggested to raise the content standard of ginsenoside Rb1 in Hongshen in Chinese Pharmacopoeia.

Key words: Hongshen, steaming time, color, ginsenoside, quality standard

CLC Number: 

  • R283.1