Antioxidants and α-glucosidase inhibitors from "Liucha" (young leaves and shoots of Sibiraea laevigata).
Food Chem
; 230: 117-124, 2017 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-28407891
ABSTRACT
The young leaves and shoots of Sibiraea laevigata, known as "Liucha", are used as tea by Tibetans to improve digestion after meals. Long-term consumption of "Liucha" will cause weight loss. In present work, we reported on the isolation and NMR and chemical analysis-based elucidation of seven new sorbitol O-caffeic acid ester derivatives named sorbitol esters A-G (1-7) and eighteen known phenolic compounds from S. laevigata. All of the isolates were evaluated for their antioxidant and α-glucosidase inhibitory activities. Among them sorbitol ester A (1), sorbitol ester D (4), sorbitol ester F (6), sorbitol ester G (7), isoferulic acid (15), methyl caffeate (18), trans-p-hydroxycinnamic acid (19), and kaempferol 3-O-ß-d-(6â³-E-p-coumaroyl)-glucopyranoside (25) showed more potent α-glucosidase inhibitory activity than the clinical drug acarbose.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Cinnamates
/
Rosaceae
/
Kaempferols
/
Glycoside Hydrolase Inhibitors
/
Antioxidants
Country/Region as subject:
Asia
Language:
En
Journal:
Food Chem
Year:
2017
Document type:
Article