Biopolymer-Levan Characterization in Bacillus Species Isolated from Traditionally Fermented Soybeans (Thua Nao) - Rungnapha Wannasutta; Sudarat Laopeng; Siriporn Yuensuk; Sirirath McCloskey; Nuntavun Riddech; Wiyada Mongkolthanaruk (ACS Omega)