摘要
研究无机试剂对β-淀粉酶活性的影响。结果表明,Ca2+、Ba2+、Co2+、Cr3+、Zn2+在一定浓度范围内对β-淀粉酶有激活作用,其中Ca2+的激活作用最显著,当Ca2+浓度为30 mmol/L时,可使β-淀粉酶的活性提高近3倍;Cu2+、Fe3+、Al3+、Mn2+、SO32-等离子对β-淀粉酶的活性有较强的抑制作用;SO42-、S2O32-、F-、Br-、I-、K+、Na+、NH4+等对β-淀粉酶的活性影响不大;Mg2+、Ni2+、Cl-在不同浓度条件下有不同的作用。
The effects of inorganic reagent on the activity of β-amlylase were investigated. The results indicated that Ca^2＋, Ba^2＋, Co^2＋, Cr^3＋ and Zn^2＋ within certain concentration range would activate β-amlylase, and among them, the activation effects of Ca^2＋ were the strongest （as Ca^2＋ concentration was 30 retool/L, it could almost triplicate the activity of β-amlylase）; Cu^2＋, Fe^3＋, Al^3＋, Mn^2＋ and SO3^2- etc. would inhibit the activity of β-amlylase; SO4^2-, S2O3^2-, F^-, Br^-, I^-, K^＋, Na^＋ and NH4^＋ etc. had few effects on the activity of β-amlylase; and Mg^2＋, Ni^2＋ and Cl^- of different concentration had different effects on the activity of β-amlylase.
出处
《酿酒科技》
北大核心
2008年第1期32-34,共3页
Liquor-Making Science & Technology
基金
湖北省教育厅项目(项目编号:D2005118004)
