流程参数的统计优化和尿酸酶的净化使用隔离 Pseudomonas mosselii DSS0022
Sai Sushma Dudala1, T C Venkateswarulu1, A Venkata Narayana1
1Department of Biotechnology, Vignan's Foundation for Science, Technology and Research, Vadlamudi, Guntur, Andhra Pradesh 522213 India.
Indian journal of microbiology
|July 14, 2025
概括
通过使用统计方法优化尿酶的产生,实现了高酶活性. 这种来自Pseudomonas mosselii的增强尿酶显示出用于制药应用的稳定性.
科学领域:
- 生物技术是生物技术.
- 酶工程是什么? 酶工程是什么?
- 制药科学 制药科学
背景情况:
- 尿对于治疗高尿血和诊断尿酸水平至关重要.
- 大规模的尿酶生产对于制药和诊断应用至关重要.
- 优化生产参数是满足工业需求的关键.
研究的目的:
- 优化工艺参数,以提高尿酶的产生.
- 为了研究纯化尿的稳定性和特性.
- 评估 Pseudomonas mosselii 在工业尿供应方面的潜力.
主要方法:
- 响应表面方法 (RSM) 和人工神经网络-遗传算法 (ANN-GA) 用于优化.
- 分析了七个关键参数 (温度,pH,介质体积,化时间,注射剂大小,注射剂年龄,rpm).
- 根据ANN-GA预测进行了符合性实验研究.
主要成果:
- 由ANN-GA预测的最佳条件产生了显著的尿酶活性 (63.92±0.06 U/mL).
- 纯化尿酶的特异活性为92.48U/mg,分子量为~32kDa.
- 该酶在pH值6.0-10.0和高达50°C的温度下表现出广泛的稳定性,pH值9.0和30°C是最佳的.
结论:
- Pseudomonas mosselii DSS002 是生产稳定,高活性尿酶的有希望的来源.
- 优化的生产策略可以实现高效和可扩展的尿制造.
- 这些发现支持尿在制药中的工业规模应用.
相关概念视频
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
Downstream Processing
Downstream processing begins once fermentation is complete and involves a series of steps to recover and purify products such as acids, vitamins, antibiotics, or proteins.Cell HarvestingFor example, for intracellular protein-based products, the first step is harvesting the cells. This is typically achieved using centrifugation or filtration to separate the cells from the liquid phase.Cell Disruption for Intracellular ProductsIf the target product is intracellular, the harvested cells must be...


