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Seyyed Vahid Niknezhad,Mohammad Hossein Morowvat,Ghasem Najafpour Darzi,Aida Iraji,Younes Ghasemi 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.6
Exopolysaccharide (EPS), as potential microbial base polysaccharide source, has plenty of applications due to its unique physicochemical structure. A Pantoea sp. BCCS 001 GH bacterium with the ability to produce a high amount of EPS was identified by 16S rRNA gene sequencing and biochemical tests. The synthesis of EPS by Pantoea sp. BCCS 001 GH was 13.50 g/L in 48 h when sucrose was used as substrate. The proposed protocol was desirably rapid for massive prodcution of EPS and showed the remarkable impact of sucrose and disodium hydrogen phosphate, peptone, Triton x-100 and 2% (v/v) inoculum size on the yields of EPS production. The EPS was mainly composed of glucose and galactose in a relative molar ration (glucose/galactose) of 85.18:14.82, respectively. The preliminary characterization showed the average molecular- weight of EPS is about 2.522 9 106 Da. The microscopics morphology of polymer was formed irregularly shaped structures.