Optimization of β-glucosidase catalysed synthesis of trisaccharides from cellobiose and gentiobiose

• Purified β-Glucosidase from Fusarium oxysporum catalysed the hydrolysis and transglycosylation reactions in the presence of cellobiose and gentiobiose. The product of the latter reaction was mainly a triose. The time of incubation, pH and substrate concentration for transglycosylation reaction were optimised. Under optimal conditions, the concentration of glucose and triose reached approximately 15–20 % of the initial substrate concentration. These results suggested that β-glucosidase from F.oxysporum is an ideal enzyme for the synthesis of triose in reasonable quantities.

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