| 糖化酶的分批发酵动力学研究 |
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| 引用本文： | 潘红春,刘红. 糖化酶的分批发酵动力学研究[J]. 四川理工学院学报(自然科学版), 1999, 12(1): 4 |
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| 作者姓名： | 潘红春 刘红 |
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| 作者单位： | 四川轻化工学院轻工工程系,自贡,643033 |
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| 摘 要： | 用国内常规糖化酶生产菌株黑曲霉ＵＶ－１１，利用５升全自动发酵罐培养，在以淀粉为碳源，ＮＨ４Ｃｌ为氮源的合成培养基中，３３℃，ｐＨ４．５条件下进行分批发酵，菌体比生长速率为０．０２～０．０３１／ｈ时，糖化酶的比生产速率可达最大，为１５００～１８００ｕ／ｇ．ｈ，酶活力为２１９０ｕ／ｍｌ。
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| 关 键 词： | 黑曲霉；糖化酶；分批发酵；动力学 |
| 修稿时间： | 1998－06－17 |
Study on the Fermentation of Glucoamylase by Aspergillus Niger |
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| Pan Hongchun,Liu Hong. Study on the Fermentation of Glucoamylase by Aspergillus Niger[J]. Journal of Sichuan University of Science & Engineering(Natural Science Editton), 1999, 12(1): 4 |
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| Authors: | Pan Hongchun Liu Hong |
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| Abstract: | Aspergillus niger UV 11 which is usually used for glucoamylase production in our country is cultivated in a five litre automatic fermentor A chemically defined medium is used,in which contained starch,and other inorganic salts Cultivations are conducted at 33℃and pH4 5 In batch cultures,the specific glucoamylase productivity is amaximum,1 500～1 800u/g h,at the specific growth rate of 0 02～0 031/h,the activity of glucoamylase is 2 190 u/ml |
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| Keywords: | aspergillus niger glucoamylase batch fermentation kinetics |
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