Effect of Gamma Irradiation on the Chemical Composition and Antioxidant Activity of Thymus algeriensis Extracts
| Autor: | Fazia Mouhouche, Aoumeur Baaliouamer, Naima Sahraoui, Otmane Benchabane, Sabrina Douar-Latreche, Mohamed Hazzit |
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| Rok vydání: | 2018 |
| Předmět: |
p-Cymene
Antioxidant DPPH medicine.medical_treatment 01 natural sciences Biochemistry Analytical Chemistry law.invention Lipid peroxidation chemistry.chemical_compound 0404 agricultural biotechnology law medicine Carvacrol Phenols Food science Essential oil biology Chemistry 010401 analytical chemistry Organic Chemistry 04 agricultural and veterinary sciences biology.organism_classification 040401 food science 0104 chemical sciences Lamiaceae |
| Zdroj: | Journal of Essential Oil Bearing Plants. 21:449-461 |
| ISSN: | 0976-5026 0972-060X |
| Popis: | Thymus algeriensis Boiss. et Reut. pretreated with gamma irradiation at the doses of 0, 10, 20 and 30 kGy were submitted to hydrodistillation and the resulted essential oils were analyzed for their chemical composition by GC and GC-MS and for their antioxidant activity evaluated by inhibition of lipid peroxidation, ferric reducing antioxidant power and scavenging of radicals DPPH• and ABTS•+. On the other hand, the non volatile ethanol extracts obtained by Soxhlet, were analyzed in terms of the dosage of total phenols and flavonoids and for their antioxidant activity. Although there were no qualitative changes in the chemical composition of the essential oils of the irradiated samples, minor quantitative changes were observed for some compounds for some irradiation doses, especially for the three main components: carvacrol for all the doses in addition to p-cymene and γ-terpinene for 10 kGy and γ-terpinene for 30 kGy. The antioxidant activity of the oils was dependent on the method employed to det... |
| Databáze: | OpenAIRE |
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