Batch and continuous synthesis of lactulose from whey lactose by immobilized β-galactosidase.
作者： Yoon Seok Song , Hee Uk Lee , Chulhwan Park , Seung Wook Kim
DOI: 10.1016/J.FOODCHEM.2012.08.074
关键词:
摘要: Abstract In this study, lactulose synthesis from whey lactose was investigated in batch and continuous systems using immobilized β-galactosidase. the system, optimal concentration of fructose for 20%, effect galactose, glucose on β-galactosidase activity determined hydrolysis transgalactosylation reaction synthesis. Galactose were competitive inhibitors, acted as a noncompetitive inhibitor. The inhibitory effects galactose stronger than they reaction. addition, when reused synthesis, its catalytic retained to extent 52.9% after 10 reuses. Lactulose synthesized continuously packed-bed reactor. We 19.1 g/l during flow at rate 0.5 ml/min.
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