Kojima T, Kishi M, Sekita S, Satake M
Kanagawa Prefectural Public Health Laboratory: 1-1-1, Nakao, Asahi-ku, Yokohama, Kanagawa 241-0815, Japan.
Shokuhin Eiseigaku Zasshi. 2001 Jun;42(3):202-5. doi: 10.3358/shokueishi.42.202.
The aim of this study is to clarify whether sennosides are contained in the leaf of Malva verticillata L., and then to clarify the source of sennosides in health teas including malva leaves. The identification and determination of sennosides were performed with thin layer chromatography and high performance liquid chromatography. The leaf of Malva verticillata L. did not contain sennosides A or B and could be easily distinguished from senna leaf. Our previous report showed that sennosides are contained in weight-reducing herbal teas including malva leaves, and that senna leaf is a herbal component in some teas. Furthermore, in 10 samples of health tea including malva leaves that were bought last year, the smallest amount of sennosides was 6.1 mg/bag, and all health teas including malva leaves contained the leaf and midrib of senna. We suggest that sennosides A and B are not contained in the leaf of Malva verticillata L., and that the sennosides in health teas including malva leaves are not derived from malva leaf but from senna leaf.
本研究的目的是阐明冬葵叶中是否含有番泻苷，进而明确含冬葵叶的保健茶中番泻苷的来源。采用薄层色谱法和高效液相色谱法对番泻苷进行鉴定和测定。冬葵叶不含番泻苷A或B，且很容易与番泻叶区分开来。我们之前的报告显示，含冬葵叶的减肥凉茶中含有番泻苷，且番泻叶是某些茶中的一种草药成分。此外，在去年购买的10份含冬葵叶的保健茶样品中，番泻苷的最小含量为6.1毫克/袋，所有含冬葵叶的保健茶都含有番泻叶的叶片和叶中脉。我们认为冬葵叶中不含番泻苷A和B，含冬葵叶的保健茶中的番泻苷并非来源于冬葵叶，而是来源于番泻叶。
