Year: 1981
Type: article
Abstract: An organism producing extracellular polysaccharide was isolated from soil and identified as Aeromonas hydrophila (Chester) Stanier.The effects of medium components and cultural conditions on production of the polysaccharide were studied.The optimal concentrations of carbon and nitrogen sources were 5% and 0.3%, respectively, for production of the polysaccharide.The optimal initial pH was 7 ~9.The maximum polysaccharide yield was obtained at 4 ^8 days offermentation.From sucrose and raffinose as carbon source, the organism produced levan and acidic polysaccharide in the ratio of 7 : 3 and 4: 6, respectively.From glucose, galactose, fructose, mannose, maltose and lactose, mainly acidic polysaccharide was produced.The acidic polysaccharide was found to contain galactose, mannose and glucuronic acid in a ratio of 5:4:2.The acidic polysaccharides obtained from sucrose and lactose seemed to be the same polysaccharide.
Authors: Seinosuke UEDA, Fumiko MOMII, Katsuhiro OSAJIMA, Kouichi ITO
Institution: Kyushu University
Language: English
Subfield: Food Science
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W2000087087