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    Through domestication and acclimation of Nocardia sp. by feeding acrylonitrile into the culture medium, a superior acclimated Nocardia strain was obtained, in which the stability of NHase was greatly improved and the bearable concentration of acrylamide was reached on the 600g/L level which was increased about 85% comparing to the original control.
    通过摇瓶培养过程中加入酶催化反应的方法,进行菌体的驯化和筛选,使菌体的酶活稳定性和产物耐受性明显提高,最终的驯化菌体对产物的耐受浓度达到600g/L以上,和原始菌种相比,提高了85%以上。
    The Bromelain shows a relatively high stability at pH 5.0. With the rising of storage temperature, the activity retention index reduced obviously.
    菠萝蛋白酶在pH4.0-5.5时,酶活力较稳定,pH5.0时酶活稳定性最好。 随着贮存温度的升高,菠萝蛋白酶活力保留率明显下降。
    At the same time, the characteristics of the enzyme were studied, result shows that the optimal temperature of enzymatic reaction was 50°C, its enzyme activity can maintain above 60% at a pH of 7-10, a temperature of 30~70°C. It had a preferable stability of enzyme activity.
    对IS-B产生的CMC酶酶学性质进行初步研究,酶反应温度以50℃为宜,当pH维持于7~10,温度维持于30~70℃时,酶活力可保持在60%以上,具有较好的酶活稳定性
    It was indicated that an exterior electric field(0~110 V/cm) has no bad influence on the starch hydrolysis by α amylase and the stability of α amylase was not reduced but improved a little by the exterior electric fields.
    结果表明,在电场(0 ~110 V/cm) 作用下,酶膜反应器中的α淀粉酶酶解淀粉的过程不但不受影响,而且α淀粉酶的酶活稳定性不会降低,甚至还稍有提高;
    Under suitable conditions, the ingredients of the enzyme and detergent were well distributcd and the activities of the enzyme were stable.
    在适宜条件下,复合酶与洗衣粉中各成分配伍性良好,并具有较高的酶活稳定性
    Though optimum pH of immobilized cells for inulin hydrolysis was similar to free cells,the optimum temperature,pH stability and thermal stability of inulinase were improved by immobilization.
    与游离细胞相比 ,固定化细胞菊糖酶的最适 pH未改变 ,但当pH <4和 pH >7时酶活稳定性更高 ; 最适水解温度则升高了 5℃ ,酶的热稳定性也有所提高。
 

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