1st Day of Organic Chemistry and its Medicinal and Industrial Applications

Physico-Chemical characterization and biology, of biopolymer from vegetal source

Non programmé

20m

Faculté des sciences (Setif1- University Ferhat ABBAS)

Orateurs

Dr Karima Bentaiba (3Laboratory of Sciences and Technics of Animal Production (LSTPA), University Abdelhamid Ibn Badis of Mostaganem)Mlle khayra Mehiri (Biotechnologie, université Hassiba Ben Bouali, Chlef, Algéria)

Description

The objective of this work is to study the polysaccharides of Opuntia Ficus Indica. They were characterized physico-chemically by assay of total sugars, water content, ash content, water and fat retention capacity, and emulsifier, and biologically by the study of antimicrobial and antioxidant activity (DPPH, β carotene). The study of the extract yielded the following mean values: total ash (4%), water content (3.008%), total oses (50.3%), 1.02 H2Og-1 for water and 1.05 oil.g-1 for the fat binding capacity. The study of the antibacterial activity shows a very important activity against bacillus with a 23mm halo, the antioxidant activity reached 90% and 71.19% for the trapping of DPPH and β-carotene respectively. The polysaccharides studied by scanning electron spectroscopy demonstrated a porous structure with a maximum absorption of 210 nm. This polymer is rich in carboxylic group and pyranose ring.
Keywords : Polysaccharides, MEB, FTIR, Antimicrobial, Antioxidant activity