α -Amylase and α-Glucosidase Inhibitory Activities of Phenolic Extracts from Eucalyptus grandis × E. urophylla Bark
Joint Authors
Xiong, J.
Wang, F.
Jiang, Ping
Grace, Mary H.
Lila, Mary Ann
Xu, Rui
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This study evaluated the inhibitory effects of different extracts and fractions from Eucalyptus.
grandis × urophylla bark (EB) against α-glucosidase and α-amylase enzyme activities.
The ethyl acetate extract (EB-E) showed the highest activity among others.
Seven fractions were derived from EB-E; among them EB-E-7 showed the highest significant inhibition of both enzymes, with IC50 of 1.40±0.18 and 1.72±0.12 μg/mL, respectively.
EB-E and its active fraction EB-E-7 showed highest contents of total phenolics: 178.79±4.68 and 920.4±5.46 mg GAEag−1, respectively.
HPLC-MS analysis of EB-E-7 revealed the presence of ellagic acid, quercetin-glucuronide, quercetin-3-α-rhamnopyranoside, and ellagic acid rhamnoside as major compounds, together with smaller concentrations of myricetin-rhamnoside, isorhamnetin-hexoside, myricetin-3-α-arabinofuranoside, and isorhamnetin.
Therefore, the phenolic compounds from Eucalyptus grandis × E.
urograndis bark potently inhibited α-amylase and α-glucosidase activity, having potential in prevention of hyperglycemia.
American Psychological Association (APA)
Jiang, Ping& Xiong, J.& Wang, F.& Grace, Mary H.& Lila, Mary Ann& Xu, Rui. 2017. α -Amylase and α-Glucosidase Inhibitory Activities of Phenolic Extracts from Eucalyptus grandis × E. urophylla Bark. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1172443
Modern Language Association (MLA)
Jiang, Ping…[et al.]. α -Amylase and α-Glucosidase Inhibitory Activities of Phenolic Extracts from Eucalyptus grandis × E. urophylla Bark. Journal of Chemistry No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1172443
American Medical Association (AMA)
Jiang, Ping& Xiong, J.& Wang, F.& Grace, Mary H.& Lila, Mary Ann& Xu, Rui. α -Amylase and α-Glucosidase Inhibitory Activities of Phenolic Extracts from Eucalyptus grandis × E. urophylla Bark. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1172443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1172443