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EDICA major mandate is to establish Egypt’s National Agricultural Scientific Memory and support the Government Agricultural Development plans, by disseminating knowledge on agricultural research and transfer of modern agricultural technologies to user communities at universities, scientific research institutes and Agricultural Scientific Societies in Egypt and abroad.

Journal Article

Article de revue

Antioxidant properties of different extracts from five medicinal plants  [2012]

Abo El-Maati, M.F.; Labib, S.M.; Al-Gaby, A.M.A.; Ramadan, M.F.;

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Different extracts from five medicinal plants in terms of phenolic compounds and antioxidant properties were studied. By using four solvents, twenty extracts of the tested plants [clove (Syzygium aromaticum), rosemary (Rosmarinus oficinalis), thyme (Thymus vulgaris), sweet marjoram (Origanum majorana) and ginger (Alpinia zerumbet)] were obtained. Total phenolic compounds and total flavonoids were measured using Folin-Ciocalteu reagent and AlCl3, respectively. In addition, total antioxidant capacity of the extracts was estimated by different methods including: DPPH (1,1- diphenyl-2 picrylhydrazyl radical), ABTS. (2, 2 azino bis-(3-ethylbenzthiazoline-6-sulfonic acid),and �- carotene/linoleic bleaching test. Clove extracts exhibited the strongest antioxidant capacity in all used assays, followed by rosemary and thyme extracts. In general, ethanol, water and hexane extracts showed comparable activity to the synthetic antioxidants TBHQ. Therefore, these extracts could be used as preservative ingredients in the food and/or pharmaceutical industries. Data from this study could be used for developing natural antioxidants and bioactive agents of health promoting activities

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Information bibliographique

Langue:
English
Type:
Summary
Sur AGRIS depuis:
2014
Volume:
39
Numéro:
4
Page initiale:
675
Page finale:
687
Tous les titres:
" Antioxidant properties of different extracts from five medicinal plants "
Autre:
" (Ar, En) "
" 4 fig.2 tables "
" 57 ref. "

(Revue

Zagazig Journal of Agricultural Research

ISSN : 1110-0338