Branched modified starch product synthesized by Lactobacillus fermentum strain NCC 2970
The N-terminally truncated GtfB enzyme of Lactobacillus fermentum NCC 2970 is a member of the GH70 family. The 4,3-α-glucanotransferase converts amylose and maltooligosaccharides in an alternating glucan containing 60 % α(1→4) and 40 % α(1→3) glucosidic linkages, and 8 % α(1→3,4) branching points. The polymer has a degree of polymerization of > 30 units. As far as known, the formation of a branched glucan with(1→4) and (1→3) glucosidic linkages is unique.
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