Please use this identifier to cite or link to this item:
https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/5856
Title: | Evaluation de l’activité antioxydante des extraits aqueux de deux variétés des dattes Ajwa et Tazerzait |
Authors: | OULAD MEBAREK, Mohammed REFFIS, Mohammed |
Keywords: | antioxidant activity, Ajwa, Tazerzait, Polysaccharides, Aqueous Extracts Activité antioxydant, Ajwa, Tazerzait, Polysaccharides, Extrait Aqueux. |
Issue Date: | 2017 |
Publisher: | Faculté Science de la Nature et de la Vie et Sciences de la Terre - Université de Ghardaïa |
Abstract: | The aims of this study were to evaluate the antioxidant activity of the extracts of the date palm fruit (Phœnix dactylifera L.) from 2 cultivars selected (Ajwa and Tazerzait). The crude polysaccharides (Ps) and the aqueous extracts (Aq) of Ajwa and Tazerzait dates were extracted with distilled water. The yields varied between (1.5 and 2.6%) for the crude extracts of the polysaccharides and between (24 and 35%) for the aqueous extracts. The antioxidant activities of the extracts were evaluated in vitro using DPPH (2,2-diphenyl-1-picryl-hydrazyl) and ABTS (2,2'-azinobis (3-ethylbenzthiazoline- 6-sulfonate) tests). The results revealed that Ps and Aq exhibited a dose-dependent antioxidant activities and that Ps was significantly important and similar to that of controls (BHT and Vitamin C). These results should therefore provide a scientific basis for the subsequent use of polysaccharides from dates. |
URI: | https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/5856 |
Appears in Collections: | Mémoires de Master |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Evaluation de l’activité antioxydante des extraits aqueux de deux variétés des dattes Ajwa et Taz.pdf | 2.44 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.