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http://localhost:8080/xmlui/handle/123456789/7396Full metadata record
| DC Field | Value | Language |
|---|---|---|
| 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 |
| Appears in Collections: | Mémoires de Master | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 13 M.PM.pdf | BIOTECHNOLOGIES SNV | 2,92 MB | Adobe PDF | View/Open |
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