基于艾绒热重特性与其纤维素含量及非腺毛显微特征的关联性分析研究不同叶绒比艾绒的质量  

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

作　　者：易冰 康利平[3] 赵新宇 张驰 邹新 产柳佳 李洪梅[4] 黄显章[5] 赵立春[1] 张元[2] YI Bing;KANG Li-ping;ZHAO Xin-yu;ZHANG Chi;ZOU Xin;CHAN Liu-jia;LI Hong-mei;HUANG Xian-zhang;ZHAO Li-chun;ZHANG Yuan(Guangxi University of Chinese Medicine,Nanning 530200,China;College of Biochemical Engineering,Beijing Union University,Beijing 100023,China;State Key Laboratory Breeding Base of Dao-di Herbs,National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Sciences,Beijing 100700,China;Institute of Chinese Materia Medica,China Academy of Chinese Medical Sciences,Beijing 100700,China;Henan Key Laboratory of Zhang Zhongjing Formulae and Herbs for Immunoregulation,Nanyang Institute of Technology,Nanyang 473000,China)

机构地区：[1]广西中医药大学,广西南宁530200 [2]北京联合大学生物化学工程学院,北京100023 [3]中国中医科学院中药资源中心道地药材国家重点实验室培育基地,北京100700 [4]中国中医科学院中药研究所,北京100700 [5]南阳理工学院河南省张仲景方药与免疫调节重点实验室,河南南阳473000

出　　处：《中国中药杂志》2023年第18期4950-4958,共9页China Journal of Chinese Materia Medica

基　　金：中央本级重大增减支项目(2060302);国家自然科学基金项目(81860691);广西中药质量标准研究重点实验室开放课题(桂中重开201902);广西自然科学基金重点项目(2021GXNSFDA075008)。

摘　　要：艾绒质量是影响灸热疗效的关键因素,传统艾绒等级是以叶绒比作为评价方法,但缺乏科学数据。实验采用扫描电镜、Image Pro Plus、Van Soest法和同步热分析(TGA/DSC)表征(经粉碎机加工)不同叶绒比艾绒的燃烧差异的科学内涵。结果表明自然非腺毛、3∶1、5∶1、10∶1和15∶1不同叶绒比艾绒的非腺毛长度的中位数分别为542.46、303.24、291.18、220.69、170.61μm;随着叶绒比增加,艾绒的纤维素含量显著增加(P<0.05),燃烧参数(T_(i)、t_(i)、D_(i)、C、-R_(p)、-R_(v)、S、D_(b)、J_(总))均增大。相关性结果表明,艾绒的燃烧性能(T_(i)、-R_(v)、t_(i)、J_(2))与纤维素含量呈显著正相关;非腺毛长度1~200μm与J_(2)呈显著正相关;非腺毛长度200~600μm与J_(1)、T_(peak2)、T_(peak1)、-R_(v)呈显著正相关,与J_(总)、T_(b)、t_(b)呈显著负相关。叶绒比增大,艾绒中非腺毛变短、纤维素含量增加,更有利于提高着火性能、释放热量,燃烧更温和持久。“非腺毛-纤维素-TGA/DSC”量化评价方法科学揭示不同叶绒比艾绒的燃烧科学内涵,为不同叶绒比艾绒的质量评价方法建立提供了科学依据。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 thermogravimetric/differential thermal analysis(TG/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 of 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 170.61μm,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),ti,Di,C,-Rp,-Rv,S,Db,and Jtotal)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 1-200μm were significantly and positively correlated with J_(2).NSTs with a length of 200-600μm 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-TG/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.

关 键 词：艾绒 叶绒比 非腺毛 显微 同步热分析 质量评价 

分 类 号：R282.5[医药卫生—中药学]