Evidence for cycloisomaltooligosaccharide production from starch by Bacillus circulans T-3040.

Bacillus circulans T-3040 produces cycloisomaltooligosaccharide glucanotransferase (CITase) and cycloisomaltooligosaccharides (cyclodextrans, CIs) when it is grown in media containing dextran as the carbon source. To investigate the effects of carbon sources on CITase activity, B. circulans T-3040 was cultured with glucose; sucrose; a mixture of isomaltose, isomaltotriose, and panose (IMOs); a mixture of maltohexaose and maltoheptaose (G67); dextrin (average degree of polymerization = 36); dextran 40; and soluble starch.