A bidesmosidic oleanolic acid saponin from Panax pseudo-ginseng
โ Scribed by Yogendra N. Shukla; Raghunath S. Thakur; Peter Pachaly
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 311 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0031-9422
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Oleanolic acid isolated from the sapogenin fraction of the roots of American ginseng, Panax quinquefolium (Araliaceae) was bioassayed by leaf disc method for feeding-deterrence using two lepidopterous insects Spilosoma obliqua and Spodoptera litura. This triterpenic acid was found to be a potent ant
Methylation analysis indicated that IN and IIN also contained high-molecular-weight 6-linked galactan and 4-linked glucan, and that IA and IIA consisted mainly of 2-linked Rha, 4-linked GalA, and terminal and 6-linked Gal. IIA contained more 2-linked Rha than IA. Endo-a-o-( l-\*4)-polygalacturonase