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优化点酶的生产,使用一次性一个因素的方法和响应表面的方法

Ertuğrul Gül^1,2, Arzu Yadigar Dursun³, Ozlem Tepe³

¹Environmental Health Department, Hakkari University, Hakkari, Turkey.

Biotechnology and applied biochemistry

|October 22, 2024

概括

这项研究优化了Pseudomonas fluorescens的pectin lyase产量,使用响应表面方法实现了更高的酶活性. 在优化条件下,产生了35.62 U/mL的pectin lyase.

科学领域:

生物技术是生物技术.
酶技术酶技术是一种
微生物发酵微生物发酵

背景情况:

pectinases是关键的工业酶,通常由模具产生.
细菌产生pectin lyase提供了一个替代的合成途径.
优化是提高酶产量和工业适用性的关键.

研究的目的:

为了优化由Pseudomonas fluorescens进行的pectin lyase合成.
为了优化,比较一次性一个因素 (OFAT) 和响应表面方法 (RSM).
确定酶活性的动力参数和最佳条件.

主要方法:

使用OFAT和RSM优化发酵.
调查因素: 素, , 酵母提取物, 硫酸, pH, 盐.
使用非线性回归来确定抑制模型和常数的动力分析.
在不同温度和pH值下测定pectin lyase活性.

主要成果:

在特定条件下,OFAT产生了28.63 U/mL的pectin lyase (pH8,30°C,1%的pectin,0.14% (NH4) 2SO4). 在特定条件下,OFAT产生了28.63 U/mL的pectin lyase.
基质抑制遵循一种非竞争型模型,具有确定的运动常量.
通过RSM优化,在pH值为7.97,1,25%的pectin和0.25% (NH4) 2SO4.4.的pH值下,最大的pectin溶解活性为35.62U/mL.
丁酶在50°C和pH8时显示出峰值活性.

结论:

在优化pectin lyase生产方面,RSM比OFAT更有效.
确定了通过Pseudomonas fluorescens增强pectin lyase合成的最佳条件.
这些发现为大规模工业生产pectin lyase提供了基础.

关键词:

伪虫光体伪虫光体酶的稳定性酶的稳定性微生物的动力学优化的优化优化优化.素化酶的作用响应表面方法的方法.

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