产植酸酶菌株的筛选及产酶条件的研究(2)

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编号

No123456789T1T2T3X1X2X3R

加水量

WateradditionΠ%

35353540404045454511661129116337638813

硫酸铵

ammoniumsulfateΠ%

1241241241079117839340040

硫酸镁

magnesiumsulfateΠ%

00.30.60.30.600.600.31165140436143

酶活

Phytaseactivity

-1

3724413533433654213643724273458

[5]NELSSTRJ,etal.Effectofsup2

phosphorusbychick:128921294.

]　,程海娜,陈宇,等,植酸酶及其基因工程研究进展

[J].激光生物学报,(XIALi2qiu,CHENGHai2na,CHENYu,et

al.Phytaseandadvancesinitsgeneengineering[J].JounalofLaser

Biology),2001,10(3):2312235.

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工大学学报(ZHAOYun2lin,JINQi2rong.Studyonconditionsof

从表中可以看出硫酸镁和硫酸铵的极差分别居第一、二位,是影响酶活的关键因素,加水量的

极差居第三位,是产酶的次要因素,从各实验因子

producingphytasebyAspergillus[J].JounalofWuxiUniversityofLightIndusty),1996,15(3):2142218.