Download Advances in Plant Glycosides, Chemistry and Biology, by Chong-Ren Yang, Osamu Tanaka PDF

By Chong-Ren Yang, Osamu Tanaka

Hardbound. within the plant state quite a few chemical components happen in a glycoside shape (conjugation with sugar). Glycosides are vital, secondary metabolites. The structural range is as a result of the sizeable volume of types and stereochemical configurations of the sugar part. Aglycones belong to terpenoid, steroid, flavonoid, quinonoid, lignan, different easy phenolics, and isothiocyanate. besides the fact that, organic actions of glycosides are, in lots of instances, liable to the character of sugar moieties, even if their aglycone is the same.Since the 80s, plant glycosides were attracting an expanding quantity of curiosity from botanists and phytochemists world-wide for the subsequent purposes: - they're tricky to isolate and purify- they've got a crucial organic functionality in flora and noteworthy organic actions- they seem to be a extremely important source of usual drugs, wellbeing and fitness meals, cosmetics and f

Show description

Read or Download Advances in Plant Glycosides, Chemistry and Biology, Proceedings of the International Symposium in Plant Glycosides PDF

Similar plants books

Grasses of the Intermountain Region

Grasses of the Intermountain quarter is a amendment of the 2 grass volumes of the plants of North the US (FNA). it truly is designed for deciding upon contributors of the Poaceae within the zone among the Sierra Nevada and Rocky Mountains, and is meant to be used via botanists operating with the grasses during this intermountain quarter of North the USA.

Phenolic Metabolism in Plants

This quantity includes studies provided on the 31 st annual assembly of the Phytochemical Society of North the United States, held at Colorado nation collage in fortress Collins, Colorado on June 22-26, 1991. This symposium, entitled Phenolic Metabolism in crops, celebrated the starting place of this society because the Plant Phenolics crew of North the United States; the 1st symposium, entitled Biochemistry of Plant Phenolic elements, used to be additionally held at castle Collins from August 31 to September 1, 1961.

Extra info for Advances in Plant Glycosides, Chemistry and Biology, Proceedings of the International Symposium in Plant Glycosides

Example text

Costus speciosus (Zingiberaceae) grows wild in Southeast and South Asia. From the rhizomes, a number of spirostanol-3-O-monodesmosides of diosgenin and the corresponding furostanol-3,26-O-bisdemosides have been isolated as shown in Fig. 5 [ 10]. From rhizomes of this plant, Ebizuka and the coworkers, Tokyo University, succeeded to isolate an enzyme with this activity named furostanol-glycoside 26-O-13-glucosidase (F26G) [11-13 ]. The purified F26G is highly specific for the cleavage of the 26-O-13-glucosyl linkage of furostanol-glycosides; by this enzyme, protogracilin and protodioscin afforded gacillin and dioscin, respectively, while no hydrolysis were observed for cellobiose, gentiobiose, amygdalin, prunacin and octyl, phenyl and p-nitropheny113-D-glucosides.

And Fukuda, S. (1952) Yakugaku Zasshi 72, 586. 2. , Tanaka, O. -H. (1988) Chem. Pharm. Bull. 36, 4167. 3. Tominaga, T. (1960) Yakugaku Zasshi 80, 1202. 4. , A. C. and Tominaga, T. (1975) Jr. Org. Chem. 40, 1057. 5. , Tanaka, O. -H. (1991) Chem. Pharm. Bull. 39, 1871. 6. , Nishino, H. and Kozuka, M. (1997) Proceeding of the International Conference on Food Factors, Ohigashi, H. et al. eds. (Springer-Verlag), in press. 7. , Kobayashi, M. and Arihara, S. (1996) Nat. Med. 50, 176. 8. , Masuda, H. and Mizutani, K.

Yucca extract is recognized as safe for human food use by FDA. The extract tasteless and odorless, showing no effect on the taste of foods. The extract is now commercially utilized for extending the shelflife of cooked foods such as "sushi" and "musubi" and fermented seasonings such as soy sauce in Japan. Furostanol-glycoside 26-O-b-glucosidase (F26G) from Costus speciosus rhizomes: As mentioned above, spirostanol-3-O-mondesmosides from Mohave yucca exhibited potent antiyeast activity, while co-occurring furostanol-3, 26-O-bisdesmosides showed no activity.

Download PDF sample

Rated 4.03 of 5 – based on 8 votes