頁籤選單縮合
| 題 名 | Flavonoids from Taxillus theifer=埔姜桑寄生的類黃酮素 |
|---|---|
| 作 者 | 蔡東湖; 劉宜珍; 林麗純; | 書刊名 | Journal of Food and Drug Analysis |
| 卷 期 | 18:4 2010.08[民99.08] |
| 頁 次 | 頁256-262 |
| 分類號 | 418.52 |
| 關鍵詞 | 埔姜桑寄生; 桑寄生科; 類黃酮素; Taxillus theifer; Scurrula ritozanensis; Loranthaceae; Catechin-5-O-(6-O-galloyl-β-glucopyranoside; Flavonoid; |
| 語 文 | 英文(English) |
| 英文摘要 | ABSTRACT A new catechin derivative, catechin-5-O-(6-O-galloyl-β-glucopyranoside) (2), together with ten known flavonoids, was isolated from the leaves and stems of Taxillus theifer (Hayata) H. S. Kiu. T. theifer is a shrub parasitizing on different species of plants. Three samples of T. theifer on various host plants were collected and their chemical constituent variations were identified and estimated by HPLC/UV methods. A comparison of the constituents from T. theifer parasitizing on different host trees demonstrated that catechin (1), quercetin-3-O-(6-O-galloyl-β-glucopyranoside) (3), quercetin-3-O-β-glucopyranoside (5), and quercetin-3-O-β-glucuronide (6) were the major components in the title plant irrespective of the host tree. However, the content of some components varies for each sample. |
本系統中英文摘要資訊取自各篇刊載內容。