Characterization of levan produced by Serratia sp. |
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| Affiliation: | 1. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China;2. International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China |
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| Abstract: | Levan was produced by a newly isolated bacterium from soil, taxonomically identified as a Serratia sp. This is the first report of levan production by Serratia sp. The levan was digested by levanase, which cannot hydrolyze β-2,1 linkages and the remaining substrate was analyzed by NMR. It was found that this levan had less β-2,1 linkage than other microbial levans, and that the structure was quite different from the levan produced by other bacteria such as genus Bacillus. |
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