Please use this identifier to cite or link to this item:
https://dspace.univ-ouargla.dz/jspui/handle/123456789/6359
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | TELLI A | - |
dc.contributor.author | MAHBOUB N | - |
dc.contributor.author | BOUDJENEH S | - |
dc.contributor.author | SIBOUKEUR O. E. K | - |
dc.contributor.author | MOULTI-MATI. F | - |
dc.date.accessioned | 2010 | - |
dc.date.available | 2010 | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 2170-0672 | - |
dc.identifier.uri | http://dspace.univ-ouargla.dz/jspui/handle/123456789/6359 | - |
dc.description | AST Annales des Sciences et Technologie | en_US |
dc.description.abstract | This work was conducted to optimize extraction conditions of polyphenols from date fruit variety Ghars (Kimri I or Kh’lal). The effects of solvent type (methanol and ethanol), solvent/water ratio, sample/solvent ratio and extraction time were studied. High values of total polyphenols content (PPt) were obtained at an 80/20 solvent/water ratio, at a 1/6 solid/liquid ratio and at 5 hours. The optimization results showed that the methanol was the most efficient solvent for polyphenols extraction. The evolution of total polyphenols content during three stages of ripening (Kimri I or Kh’lal I, Khalal or Bser and Tmar) was studied. The PPt content decreased from 892.14 mg EAG/10g of dry weight (DW) at Kimri I stage to 4.22 mg EAG/10g DW at Tamr stage. | en_US |
dc.language.iso | fr | en_US |
dc.relation.ispartofseries | volume 2 numéro 2 AST 2010; | - |
dc.subject | dates | en_US |
dc.subject | Ghars variety | en_US |
dc.subject | optimization | en_US |
dc.subject | polyphenols | en_US |
dc.subject | stages of ripening | en_US |
dc.title | OPTIMISATION DES CONDITIONS D’EXTRACTION DES POLYPHENOLS DE DATTES LYOPHILISEES (Phoenix dactylifera L) VARIETE GHARS | en_US |
dc.type | Article | en_US |
Appears in Collections: | volume 2 numéro 2 AST 2010 |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
A020201.PDF | 278,63 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.