BBAuthors: Asker, M.S.; Advisor: -; Participants: El Sayed, O.H.; Mahmoud, M.G.; Yahya, S.M.; Mohamed, S.S.; Selim, M.S.; El Awady, M.S.; Abdelnasser, S.M.; Abo Elsoud, M.M. (2018)
Eleven isolates have the ability to produce EPSs and also decreased the viability of HepG2 cell line in different manners. The five most promising isolates that produce high yield of EPSs and high cytotoxicity were identified by 16S RNA as Brevundimonas subvibrioides MSA1, Bacillus thuringiensis E4, Bacillus amyloliquefaciens MGA2, Pseudomonas fluorescens SGA3, and Advenella Kashmirensis NRC-7. The chemical composition of the following EPSs (M1, M3, M6, M15, M19, E2, E4, E10, S5, S7, and S11) demonstrates that they are acidic sulfated heteropolysaccharides with different relative ratios of monosugars of glucose, mannose, galactose, glucouronic acid, and mannouronic acid. The average m... 
