Journal of Food Processing & Technology

Assessment of phenolic content and antioxidant activity of four Algerian dates cultivars

20^th International Conference on Nutrition, Food Science and Technology

April 16-17, 2018 Dubai, UAE

Bahiani Malika, A Nani, S Belghiet, K Bobekar and S Babahanni

Research Unit for Renewable Energies in the Saharan Environment (URER.MS), Algeria
University of Ahmed Draia, Algeria
University of Kasdi Merbah, Algeria

Posters & Accepted Abstracts: J Food Process Technol

Abstract:

Polyphenols is a group of secondary metabolites present in many different vegetables and fruits. There is an increasing interest in polyphenols because of their biological and pharmacological properties, such as anti-inflammatory, antioxidant and chemo-preventive activities. The objective of this study was to assess the phenolic content of four dates cultivars sampled in the various south-western Algerian Sahara oases (i.e. Mes'udia, Hmira, Takarbucht and Deglet Talmine). The polyphenols were extracted from the biological material by maceration in mixture of methanol/acetone/water (7/7/6: V/ V/V). The total phenolic content was estimated using Folin-Ciocalteu method. The antioxidant activity was evaluated by the DPPH method. Total polyphenols are 121,67; 144,15; 136,46 and 173,81 mg GAE/100 g DM, respectively. Out of the four cultivars, the Takarbucht and Deglet Talmine exhibited the highest antioxidant activity, with EC50 values: 0.21 mg/ml and 0.25 mg/ml, respectively. These values seem to be comparable to the used reference antioxidant, vitamin C. bahiani.m@hotmail.fr