Evaluation of the antioxidant activity of leaves extracts of green cypress (Cupressus sempervirens L.)

Gouizi, Rania; Shoutri, Elabbas

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dc.contributor.author	Gouizi, Rania
dc.contributor.author	Shoutri, Elabbas
dc.date.accessioned	2020-12-14T18:39:01Z
dc.date.available	2020-12-14T18:39:01Z
dc.date.issued	2020-09
dc.identifier.uri	http://di.univ-blida.dz:8080/jspui/handle/123456789/7396
dc.description	36 p., ill., cd-rom, 30 cm	fr_FR
dc.description.sponsorship	The antioxidant are the subject of many works because, in addition to their usage as conservatives in the foodstuffs by replacing synthesis antioxidants, they intervene in the treatment of many diseases. Within the framework of discovering a new antioxidants from natural sources,we attempted to extract the polyphenols from the Cupressus sempervirens L. leaves using different solvents (distilled water, methanol, Aceton and Ethanol), then estimate the total polyphenols from the prepared extracts using Folin-Ciocalteu reagent. The results of total polyphenols estimation revealed the richness of this plant in secondary metabolites, particularly in polyphenols, and that the aqueous extract and the methanolic extract are the richest in total polyphenols, where the best yield was obtained by the methanolic extract (20.4%) followed by the acetone extract (14.96%) and the ethanolic extract (11.48%). Therefore, C. sempervirens L. leaf extract can be used as a natural antioxidant in food, pharmaceutical and cosmetic industries where synthetic antioxidants presently pose a great public health problem.	fr_FR
dc.language.iso	en	fr_FR
dc.subject	Cupressus sempervirens L.	fr_FR
dc.subject	leaf extracts	fr_FR
dc.subject	Secondary metabolite	fr_FR
dc.subject	antioxidant activity	fr_FR
dc.title	Evaluation of the antioxidant activity of leaves extracts of green cypress (Cupressus sempervirens L.)	fr_FR
dc.type	Thesis	fr_FR