Suhud, Farida and Hendrajaya, Kusuma and ., Alamanda and Fitraih, Zaitin (2011) ANTIOXIDANT ACTIVITY OF TAMARIND PULP ( Tamarindus indica L.) EXTRACT IN METHANOL COMPARED TO EXTRACT IN WATER USING DPPH (1, 1·Diphenyl·2·Picryl Hydrazyl). In: INTERNATIONAL SEMINAR ON MEDICINAL CHEMISTRY AND TIMMERMAN AWARD 2011, 15 Oktober 2011, Universitas Airlangga, Surabaya.
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Abstract
Now a day, there is a strong demand in pubLic to replace syntetic antioxidant by natural ones. Usually, Tamarind pulp (Tamarindus indica L.) is added as a flavor in culinary,fresh drink and snack, also available from traditional to modern market. In order to find a natural antioxidant, a simple methode using DPPH (1,1-Diphenyl-2-Picryl Hydrazyl) was carried out qualitatively and quantitatively on testing antioxidant activity of Tamarind pulp extract in methanol compare to extract in water.The violet colour of DPPH (1,1-Diphenyl-2-Picryl Hydrazyl) fades after the addition of extract indicated the antioxidant activity.Quantitative analysis was done by visible spectrophotometry at maximum wavelength 516 nm.The result showed antioxidant activity of Tamarind pulp extract in methanol by EC50 = 5650,31 ppm and extract in water by EC50 = 15043,22 ppm
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | antioxidant activity, extract in methanol, extract in water, tamarind pulp(Tamarindus indica L.), DPPH |
| Subjects: | R Medicine > RS Pharmacy and materia medica |
| Divisions: | Faculty of Pharmacy > Department of Pharmacy |
| Depositing User: | Eko Setiawan 194014 |
| Date Deposited: | 18 Jul 2016 10:30 |
| Last Modified: | 18 Jul 2016 10:30 |
| URI: | http://repository.ubaya.ac.id/id/eprint/28087 |
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