从工业废物中利用氨酶产生新型细菌菌株:一种生物处理和优化方法
J Beula Isabel1, M Premalatha1
1Department of Energy and Environment, National Institute of Technology, Tiruchirappalli 15, Tamil Nadu, India.
International journal of biological macromolecules
|August 13, 2025
概括
这项研究将Bacillus clarus细菌分离出来,从土豆废物中产生高活性粉酶. 这表明了工业酶生产的可持续方法.
科学领域:
- 生物技术是生物技术.
- 工业微生物学 工业微生物学
背景情况:
- 酶对于可持续的工业过程至关重要.
- 氨酶是一种关键的工业酶,具有多种应用.
- 利用像土豆加工废物 (PPW) 这样的废物流用于酶生产,提高了经济可行性.
研究的目的:
- 从土壤和PPW中分离和识别产生糖酶的细菌.
- 通过响应表面方法 (RSM) 来优化氨酶的产生.
- 评估白菌对于大规模,可持续的酶生产的潜力.
主要方法:
- 从土壤和PPW中分离细菌.
- 使用16S rRNA测序进行分子鉴定.
- 使用一次变量 (OVAT) 和RSM进行酶活性测定和优化.
主要成果:
- 鉴定了Klebsiella pasteurii NITTBP2和白菌 NITTBP1.1. 这两种植物.
- 清菌表现出明显更高的原始粉酶特异性活性 (136.15 单位/毫克),而不是K. pasteurii (7.69 单位/毫克).
- 在优化的条件下,在35°C,pH值为8和粉7g/L时,原始粉酶的最大特异活性为139.23U/mg,每公斤PPW的生产潜力为~5-6 × 10^5U/mL.
结论:
- 清杆菌是一种强大的细菌,用于工业粉酶生产.
- PPW是可持续和经济高效的氨酸制造的可行基质.
- 这项研究通过废物回收来支持环保的酶生产.
相关概念视频
Environmental Applications of Microorganisms
242
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
242
Bioremediation
20.1K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
20.1K
Amino Acid Catabolism
189
Microorganisms rely on proteins as an essential carbon and energy source, particularly in environments with limited polysaccharides or lipids. However, proteins are too large to cross the plasma membrane unaided, necessitating enzymatic degradation. Microbes secrete extracellular proteases and peptidases that hydrolyze proteins into peptides, which can then be transported across the membrane. Once inside the cell, intracellular proteases degrade these peptides into free amino acids, which...
189
Microorganisms in Agriculture and Food industry
361
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
361


