Comparative authentication of Semiliquidambar cathayensis and its substituted species via macroscopic and microscopic features
10.1016/j.chmed.2021.12.006
- Author:
Dan ZHU
1
;
Xuemei SUN
1
;
Shihuan YAN
1
;
Hongwei GUO
1
;
Xincheng QU
2
;
Yaoli LI
3
Author Information
1. Guangxi Key Laboratory for Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University
2. Guangxi Institute of Chinese Medicine & Pharmaceutical Science
3. School of Pharmaceutical Sciences, Peking University
- Publication Type:Journal Article
- Keywords:
Ban Fenghe;
Dendropanax dentiger (Harms) Merr;
identification;
microscopic characteristics;
Pterospermum heterophyllum Hance;
Semiliquidambar cathayensis H. T. Chang
- From:
Chinese Herbal Medicines
2022;14(4):535-542
- CountryChina
- Language:Chinese
-
Abstract:
Objective: Ban Fenghe recorded in the Quality Standard of Yao Medicine of Guangxi Zhuang Autonomous Region (Volume 1) is derived from the dried stems and leaves of Semiliquidambar cathayensis. It is usually confused with medicinal herbs from Pterospermum heterophyllum and Dendropanax dentiger. However, they are very different in chemical composition, and should not be used as the same drug. To ensure their safety and efficacy, a method based on macroscopic and microscopic characteristics was developed to distinguish them. Methods: A total of 14 batches of Ban Fenghe samples from three species were collected from different producing areas in China. The macroscopic characteristics were examined by observing external traits. The tissue structures of transverse sections of stems and leaves, the leaf epidermis, and the powder were observed microscopically. Results: The branchlets and leaf surfaces of S. cathayensis and P. heterophyllum were hairy, especially the lower leaf surfaces of P. heterophyllum were densely covered with hairs, but those of D. dentiger were hairless. The pericyclic fibers of S. cathayensis stems were intermittently distributed in a circular shape and accompanied by stone cells, whereas those of P. heterophyllum and D. dentiger were bundled without stone cells. So stone cells and hairs were present in S. cathayensis powder, stone cells were not found in P. heterophyllum and D. dentiger powder, and hairs were not present in D. dentiger powder. The distribution sites, sizes and types of secretory tissues of these three species were also different in transverse sections of stems and leaves. Stomata on the lower epidermis of S. cathayensis leaves were paracytic, whereas those of P. heterophyllum and D. dentiger were anomocytic. Conclusion: Ban Fenghe drugs derived from S. cathayensis could readily be distinguished from those of P. heterophyllum and D. dentiger by macroscopic and microscopic features.
