Comparison of some secondary metabolites and antioxidant activity of different organs of 2 species of (Tamarix kermanensis BAUM, Tamarix aphylla (L.) KARS)

Molashahri, M. (2017) Comparison of some secondary metabolites and antioxidant activity of different organs of 2 species of (Tamarix kermanensis BAUM, Tamarix aphylla (L.) KARS). Masters thesis, university of zabol.

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Abstract

Plants are rich sources of phenolic and flavonoid compounds which are important natural antioxidants. Antioxidant compounds have ability to destroy free radicals and thereby protect the body. Tamarix, a medicinal plant, belongs to the family Tamaricaceae which contains bioactive compounds with antioxidant activity. The aim of this study was to evaluate the phenolic, flavonoids and antioxidant activity of different organs (leaves, flowers, stems) of 2 species of Tamarix (T. kermanensis, T. aphylla). The total amount of phenol and flavonoids was measured by Folin- Ciocalteu and Aluminum Choroids methods, respectively. Anthocyanin content evaluated by Wagner method. Tthe essential oil of T kermanensis flower was analyzed by GC / MS. In addition, the antioxidant activity was studied by DPPH radical-scavenging activity and ferric reducing-antioxidant power (FRAP) methods. Overall, the results showed that phenol and flavonoid content in T. kermanensis had the highest amount. The highest amount of anthocyanin was observed in stem T. kermanensis. GC / MS analysis showed 25 compounds in flower of T. kermanensis. The highest amount of essential oil was Phenol, 2-methoxy (19.67%), Tetradecane (18.51%) and Hexadecane (15.99%) respectively and in T. aphylla flower were identified 4 compounds,: Phenol, 2-methoxy (72.23%) was the highest percentage T. kermanensis flower showed high antioxidant capacity than other organs in both DPPH and FRAP methods. Therefore, the use of T. kermanensis flower as better natural antioxidant is recommended for use in the field of pharmacy and food industry.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Secondary metabolites, Antioxidant activity, Tamarix
Subjects: Q Science > QH Natural history > QH301 Biology
Depositing User: Mrs najmeh khajeh
Date Deposited: 15 Oct 2018 04:33
Last Modified: 06 Mar 2019 07:52
URI: http://eprints.uoz.ac.ir/id/eprint/2189

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