LUO Qun,LI Lu-e.Screening of Highproducing Strain and Optimization of Enzyme Production Conditions for Pectinase from Orange Peel[J].HEILONGJIANG AGRICULTURAL SCIENCES,2014,(07):119-122.
橘皮果胶酶高产菌株的筛选与产酶条件的优化
- Title:
- Screening of Highproducing Strain and Optimization of Enzyme Production Conditions for Pectinase from Orange Peel
- 文章编号:
- 1002-2767(2014)07-0119-04
- Keywords:
- pectinase; highproducing strains; screening; optimization
- 分类号:
- Q946.5;Q93-331
- 文献标志码:
- A
- 摘要:
- 为合理利用橘皮进行工业化提取果胶酶,采用平板分离法进行果胶酶高产菌株的筛选与产酶条件的优化。结果表明:经过初筛和复筛分离得到1株果胶酶的高产菌株,根据形态特征观察初步鉴定其为黑曲霉。其固态发酵最优产酶条件为:橘皮粉0.5 g,硫酸铵0.20 g,麸皮10 g,水10 mL,28℃培养3 d,在此条件下,该菌株的酶活力可达到1 447.86 U·mL-1。
- Abstract:
-
For industrialized extraction of pectinase from orange peel,screening of high producing strain and optimization of enzyme production conditions were carried out with plate separation.The results showed that a high producing strain pectinase was screened through primary screening and secondary screening.According to morphological characteristics,it was preliminarily identified as Aspergillus niger.The optimum conditions were 0.5 g orange peel powder,0.2 g ammonium sulfate,10 g wheat bran,cultured for 2 d in 28℃.Under these conditions,the enzyme activity of the strain was 1 447.86 U·mL-1.
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备注/Memo
收稿日期:2014-03-05
基金项目:四川省教育厅资助项目(11ZB076)
第一作者简介:罗群(1979-),女,四川省宜宾市人,硕士,讲师,从事生物学及预防医学研究。E-mail:372384664@qq.com。