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Flavonoids isolated from the fresh sweet fruit of Averrhoa carambola, commonly known as star fruit.
- Source :
-
Phytochemistry . Sep2018, Vol. 153, p156-162. 7p. - Publication Year :
- 2018
-
Abstract
- Thirteen flavonoids were isolated from the fresh sweet fruit of Averrhoa carambola L. (Oxalidaceae), commonly known as star fruit, and their structures were determined by spectroscopic and chemical methods. 8-Carboxymethyl-(+)-epicatechin methyl ester, pinobanksin 3- O -β- d -glucoside, and carambolasides M–Q were undescribed structures. (+)-Epicatechin, aromadendrin 3- O -β- d -glucoside, helicioside A, taxifolin 3′- O -β- d -glucoside, galangin 3- O -rutinoside, and isorhamnetin 3- O -rutinoside were reported from this species for the first time. Pinobanksin 3- O -β- d -glucoside and carambolasides M–Q showed more potent 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) radical cation scavenging activity (IC 50 = 5.3–2.3 μM) than l -ascorbic acid (10.5 μM). Further, (+)-epicatechin, pinobanksin 3- O -β- d -glucoside, isorhamnetin 3- O -rutinoside, and carambolasides O–Q exhibited weak porcine pancreatic lipase inhibitory activity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FLAVONOIDS
*CARAMBOLA
*EPICATECHIN
*LIPOPROTEIN lipase
*ANTIOXIDANT analysis
Subjects
Details
- Language :
- English
- ISSN :
- 00319422
- Volume :
- 153
- Database :
- Academic Search Index
- Journal :
- Phytochemistry
- Publication Type :
- Academic Journal
- Accession number :
- 130721279
- Full Text :
- https://doi.org/10.1016/j.phytochem.2018.06.007