Production, characterization and In vitroantioxidant activities of exopolysaccharide from Weissella cibaria GA44

Adesulu-Dahunsi, A.T. and Sanni, A.I. and Jeyaram, K. (2018) Production, characterization and In vitroantioxidant activities of exopolysaccharide from Weissella cibaria GA44. LWT - Food Science and Technology, 87. pp. 432-442. ISSN 0023-6438

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Abstract

Exopolysaccharide (EPS) producing lactic acid bacteria (LAB) strain GA44 isolated fromgari(a Nigeriantraditional fermented cassava mash) was identified with 16S rRNA gene sequencing asWeissella cibaria.The EPS produced mainly composed of glucose and rhamnose sugar units and its molecular mass wasabout 2.8�105Da. The fourier-transform infrared (FT-IR) spectrum analysis showed characteristicsabsorption peaks indicating the presence ofeOH, C¼O and C-H groups. Central composite design (CCD)and response surface methodology (RSM) were used to study the interactive effect of the significantfactors on EPS yield. Under optimum conditions, the predicted maximum EPS produced 4.88 g/L whilethe actual experimental value was 4.80 g/L. Thein-vitroantioxidant activities of the EPS showed goodscavenging effects on superoxide anion radical and hydroxyl radical. The characteristics of this EPSisolated from food source will be useful in food industries and could also serve as a potential antioxidant

Item Type:	Article
Subjects:	Q Science > QR Microbiology
Depositing User:	Mr DIGITAL CONTENT CREATOR LMU
Date Deposited:	23 Oct 2019 13:10
Last Modified:	23 Oct 2019 13:10
URI:	https://eprints.lmu.edu.ng/id/eprint/2603

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