EPS produced by Bacillus megaterium GJT321 was confirmed as β − (2, 6) − D − fructofuranose.
It is the first report on the production of levan by Bacillus megaterium.
The levan was enzyme-hydrolyzed as oligosaccharides for analyzing.
Enzymolysis assisting structural analysis is green, easier, effective and accurate.
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