Khảo sát các điều kiện thích hợp cho phản ứng transgalactosyl sử dụng galactosidase Aspergillus oryzae 3 để sản xuất galactooligosaccharid (GOS) từ lactose
Tóm tắt
in the present paper, enzyme P-galactosidase from A.oryzae 3 was used for the production GOS from lactose. The optimal conditions to forming GOS by transgalactosyl reaction using this enzyme were determined, such as 8 hours at 55°C with 60% of lactose concentration (w/v),7 U/ml of enzyme concentration and pH 5.5. The GOS production process was established and the total GOS yield (%o) determined by HPLC were more than 50%.