| Chemical and biological study of the seeds of Eragrostis tef (Zucc.) Trotter. | |
| | |
MedLine Citation:
|
PMID: 21867458 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
A chemical study of the red type of the seeds of Eragrostis tef (Zucc.) Trotter (Poaceae) led to the isolation of seven compounds from its ethanol extract, namely β-sitosterol (1), β-amyrin-3-O-(2'-acetyl(glucoside (2), β-sitosterol-3-O-β-D-glucoside (3), naringenin (4), naringenin-4'-methoxy-7-O-α-L-rhamnoside (5), eriodictyol-3',7-dimethoxy-4'-O-β-D-glucoside (6) and isorhamnetin-3-O-rhamnoglucoside (7), which are reported for the first time in the genus Eragrostis. This is the first report for the isolation of compounds (2) and (6) in nature. The isolated compounds were identified using different spectroscopic methods (EIMS, UV, (1)H NMR, (13)C NMR, HMQC and HMBC). A proximate analysis revealed the high nutritive value of the seeds: carbohydrates (57.27%), protein (20.9%), essential amino acids (8.15%) with major leucine and lysine (1.71 and 1.35%, respectively), vitamin B(1) (1.56 mg/100 g) and potassium and calcium (32.4 and 9.63%, respectively). The seeds yielded 22% w/w of fixed oil rich in unsaturated fatty acids (72.46%), among which oleic acid, was predominant (32.41%), followed by linolenic acid (23.83%). The ethanolic extract and fixed oil of the seeds exhibited anti-hyperlipedaemic and anti-hyperglycaemic activities. Oral administration of the fixed oil for 10 days resulted in a rise in serum calcium levels in rats. |
| | |
Authors:
|
Taha S El-Alfy; Shahira M Ezzat; Amani A Sleem |
Related Documents
:
|
11770618 - A probability of growth model for escherichia coli o157:h7 as a function of temperature... 5669898 - Microcyst germination in myxococcus xanthus. 12226408 - The effects of exogenous auxins on endogenous indole-3-acetic acid metabolism (the impl... 10923698 - Different functions of vicilin and legumin are reflected in the histopattern of globuli... 10814068 - Generation of the enol of methyl mandelate by flash photolysis of methyl phenyldiazoace... 22078 - Precursor role of arachidonic acid in release of slow reacting substance from rat basop... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-8-26 |
Journal Detail:
|
Title: Natural product research Volume: - ISSN: 1478-6427 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
|
Created Date: 2011-8-26 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101167924 Medline TA: Nat Prod Res Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
a Department of Pharmacognosy, Faculty of Pharmacy , Cairo University , Kasr-El-Ainy , Cairo11562 , Egypt. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Synthesis of (-)-arctigenin derivatives and their anticancer activity.
Next Document: Management of patients with type 2 diabetes.