Research on quality standards of zhuang medicine Lonicerae dasystylae flos / 中国中药杂志

<p><b>OBJECTIVE</b>To establish quality standard of Zhuang medicine Lonicera dasystyla, and provide scientific basis for the quality control of L. dasystyla.</p><p><b>METHOD</b>Characteristics of materia medica, microscopic features, TLC indentification, inspection, extractum and determination of chlorogenic acid, macranthoidin B, dipsacoside B were carried out through the experience, microscopic, physical and chemical methods, respectively. The standard of quality control was formulated thereafter.</p><p><b>RESULT</b>The characteristics of materia medica, microscopic features, TLC indentification were specified, the average contents of water, total ash, acid-insoluble ash, alcohol-soluble extracts, chlorogenic acid were 11.6%, 6.6%, 0.2% , 24.4%, 1.16%, respectively, the total amount of macranthoidin B and dipsacoside B was 3.13%. Quality standard of L. dasystyla was proposed according to experimental results.</p><p><b>CONCLUSION</b>The quality of L. dasystyla can be controlled effectively with the quality standard.</p>

Pharmacognostic studies on Desmodium gyrans / 中国中药杂志

<p><b>OBJECTIVE</b>To study the characteristic features of Desmodium gyrans in order to provide a basis for rational exploitation and utilization of the herb.</p><p><b>METHOD</b>Samples of the title plant were collected, the microscopic features of cross sections and powders were studied. TLC profiles and UV absorption of the plant extract were examined.</p><p><b>RESULT</b>Calcium oxalate crystals were found in cells of transverse sections. Nonglandular hairs were observed on leaf surfaces. Characteristic peaks in the UV spectrum were identified.</p><p><b>CONCLUSION</b>The distinct characteristic features revealed in this studies can serve as evidence for the identification of D. gyrans.</p>

Pharmacognostic studies on mangrove Acanthus ilicifolius / 中国中药杂志

<p><b>OBJECTIVE</b>In order to prove a basis for rational exploitation and utilization of the herb, the charaeteristic feature for Acanthus iliciflius was studied.</p><p><b>METHOD</b>The botanical and pharmacognostic features of the collected original plant were stadied.</p><p><b>RESULT</b>A. ilicifolius showed obvious pharmacognostic characters. The aerate cells of the root were upgrowth. and four vascular bundles were found in leaf venation.</p><p><b>CONCLUSION</b>The distinct characteristic features revealed in this studies can serve as evidence for the identification of A. ilicifolius.</p>

Pharmacognostic identification of Cryptolepis buchanaii / 中国中药杂志

<p><b>OBJECTIVE</b>To supply basis for the establishment of quality standard of Cryptolepis buchanaii.</p><p><b>METHOD</b>Characters of crude drugs, microscopic characteristic as well as UV spectrum of the herb were studied.</p><p><b>RESULT</b>Laticifers were found in the cortex and pith of the stem; much papillary non-glandular hair was found covering the stomata in the sub-cuticle of the leaf.</p><p><b>CONCLUSION</b>The results can be employed as the basis for identifying the herb.</p>