Please use this identifier to cite or link to this item:
http://nopr.niscair.res.in/handle/123456789/28938| Title: | Antioxidant flavone glycosides and other constituents from Premna latifolia leaves |
| Authors: | Ghosh, Partha Sarathi Das, Niranjan Dinda, Biswanath |
| Keywords: | Premna latifolia;Verbenaceae;Flavonoids;Antioxidant |
| Issue Date: | Jun-2014 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A new flavone
glycoside, apigenin 7-O- - -apiofuranosyl (1 2)- - -rhamnopyranoside
1 along with known compounds,
apigenin 7-O---glucopyranoside-4'-acetate
2 and -sitosterol-3-O---glucoside 3 have been isolated from the MeOH
extract of the leaves of the medicinal plant, Premna latifolia Roxb (Verbenaceae). The structure of the new compound 1 has been elucidated on the basis of detailed spectral (including
2D-NMR) and chemical (including
transformations into hexa and hepta acetates) studies. The notations of sugars
in 1 have been assigned on GC
analysis of their TMS derivatives. The isolation of compound 2 is being reported for the first time
from a higher plant. Both flavones 1
and 2 exhibit significant DPPH
radical scavenging activity with IC50 value of 16.0 and 22.5 μg/mL, respectively, which is comparable to
that of standard antioxidant, BHT (IC50 of 17.5 μg/mL). Hence, the
MeOH extract of the leaves of this plant may be useful as a potential source of
natural antioxidant.
|
| Page(s): | 746-749 |
| URI: | http://hdl.handle.net/123456789/28938 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.53B(06) [June 2014] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 53B(6) 746-749.pdf | 92.48 kB | Adobe PDF | View/Open |
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