摘要
研究了用于柑桔汁脱苦的固定化醋酸杆菌细胞的特性,研究表明:固定化细胞脱苦最佳供氧为:摇床转速160r/min,最适pH为4.5,最适温度为25℃;而游离细胞脱苦的相应条件分别为160r/min,pH5.5,25℃。低浓度NaCl对固定化细胞和游离细胞的脱苦都有强烈的抑制作用;固定化细胞在柠碱浓度达到30mg/kg后,柠碱降解速度趋于饱和,而游离细胞的柠碱浓度则为35mg/kg;固定化细胞的热稳定性比游离细胞好。
Characteristics of immobilized acetobacter cells for limonin debittering debittering in citrus juices were investigated.The immobilized cells for optimal debittering showed that the shaking flask should be running 106r/min,pH 4.5,25℃, while the shaking tlask of the relative debittering of the free cells were running at 160r/min,pH5.5.25℃.Low concentration of sodium chloride inhibited debittering of immobilized and free cells.Debittering rate came to a saturation with limonin concentration of 30 mg/kg for the immobilized cells while for the free cells with the concentration of 35mg/kg.Heat stability of immobilized cells worked better than that of free cells.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2001年第10期35-37,共3页
Food Science
