Quality of moxa with different leaf-to-moxa ratios based on correlation analysis of thermogravimetric properties, cellulose content, and microscopic characteristics of non-secretory trichomes.
10.19540/j.cnki.cjcmm.20230410.101
- Author:
Bing YI
1
;
Li-Ping KANG
2
;
Xin-Yu ZHAO
3
;
Chi ZHANG
3
;
Xin ZOU
4
;
Liu-Jia CHAN
4
;
Hong-Mei LI
5
;
Xian-Zhang HUANG
6
;
Li-Chun ZHAO
4
;
Yuan ZHANG
3
Author Information
1. Guangxi University of Chinese Medicine Nanning 530200, China College of Biochemical Engineering, Beijing Union University Beijing 100023, China.
2. State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
3. College of Biochemical Engineering, Beijing Union University Beijing 100023, China.
4. Guangxi University of Chinese Medicine Nanning 530200, China.
5. Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700, China.
6. Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation, Nanyang Institute of Technology Nanyang 473004, China.
- Publication Type:Journal Article
- Keywords:
leaf-to-moxa ratios;
microscopy;
moxa;
non-secretory trichomes;
quality assessment;
stimultaneous thermal analysis
- MeSH:
Trichomes;
Moxibustion;
Hot Temperature;
Plant Leaves
- From:
China Journal of Chinese Materia Medica
2023;48(18):4950-4958
- CountryChina
- Language:Chinese
-
Abstract:
The quality of moxa is a key factor affecting the efficacy of moxibustion. Traditional moxa grades are evaluated by the leaf-to-moxa ratio, but there is a lack of support from scientific data. Scanning electron microscopy(SEM), Image Pro Plus, Van Soest method, and stimultaneous thermal analysis(TGA/DSC) were used to characterize the scientific implication of the combustion differences between moxa with different leaf-to-moxa ratios(processed by crusher). The results showed that the median lengths from non-secretory trichomes(NSTs) of natural NSTs and moxa with leaf-to-moxa ratios of 3∶1, 5∶1, 10∶1, and 15∶1 were 542.46, 303.24, 291.18, 220.69, and 170.61 μm, respectively. The cellulose content of moxa increased significantly(P<0.05) with the increase in leaf-to-moxa ratio and the combustion parameters(T_i, t_i, D_i, C,-R_p,-R_v, S, D_b, and J_(total)) all showed an increasing trend. The correlation results showed that the burning properties of moxa(T_i,-R_v, t_i, and J_2) were significantly and positively correlated with cellulose content. NSTs with a length of 1-200 μm were significantly and positively correlated with J_2. NSTs with a length of 200-600 μm were significantly and positively correlated with J_1, T_(peak2), T_(peak1), and-R_v, and negatively correlated with J_(total), T_b, and t_b. As the leaf-to-moxa ratio increases, the NSTs in the moxa become shorter and the cellulose content increases, which is more conducive to ignition performance, heat release, and a milder, longer-lasting burn. The "NSTs-cellulose-TGA/DSC" quantitative evaluation method scientifically reveals the scientific connotation of the combustion of moxa with different leaf-to-moxa ratios and provides a scientific basis for the establishment of quality evaluation methods for moxa with different leaf-to-moxa ratios.
