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紫外线辐射对O-7放线菌在不同生长条件下产生生物活性化合物的影响。

The effect of UV radiation on O-7 Actinomycete in producing bioactive compounds in different growth conditions.

作者信息

Ibnouf Elmutasim O

机构信息

Department of Pharmaceutics, College of Pharmacy, Prince Sattam bin Abdulaziz University, P.O. Box 173, Alkharj 11942, Saudi Arabia.

出版信息

Saudi J Biol Sci. 2021 Aug;28(8):4619-4625. doi: 10.1016/j.sjbs.2021.04.070. Epub 2021 May 1.

Abstract

Actinomycetes have been identified as an origin of many secondary metabolites, antibiotics and active components that impact microbial growth. Mediated mutations using UV in practice for the breeding of organisms. The objective of this study is to analyses the impact of UV radiation on the (O-7) Actinomycete isolate. This was a prospective analytical study of a several of actinomycetes. The isolates were screened for antimicrobial efficacy against multiple Gram-positive, Gram-negative bacteria, yeast, and fungi. Various factors such as UV, temperature, pH, light, agitation, fermentation durations and aeration have also been boosted for optimal antimicrobial production. The isolate (O-7) Actinomycete has been recognized as a highly bioactive producing organism. The isolate was exposed to various wavelengths, times under numerous growth conditions. It was found that 4% concentration of glucose as a carbon source is significantly optimal for the production of antibiotic for (O-7) UV exposed strain, however, concentration of 1% of lactose is significantly optimal for the production of antibiotic for (O-7) UV exposed strain. Yeast extract at a concentration of 1% was found to be the best source of nitrogen for (O-7) UV exposed, while pH 7.0 was found to be the most suitable for the same isolate. From the temperature optimization study, it was observed that (O-7) exposed strain showed good growth and maximum antibiotic production at 28 °C. The soil-isolated biological compounds (O-7) were effective against certain types of bacteria and fungi, and the research also demonstrated that exposure to UV radiation enhanced the production of these compounds.

摘要

放线菌已被确认为许多次生代谢产物、抗生素和影响微生物生长的活性成分的来源。在生物育种实践中利用紫外线介导突变。本研究的目的是分析紫外线辐射对(O-7)放线菌分离株的影响。这是一项对多种放线菌的前瞻性分析研究。对这些分离株进行了针对多种革兰氏阳性菌、革兰氏阴性菌、酵母和真菌的抗菌功效筛选。还优化了各种因素,如紫外线、温度、pH值、光照、搅拌、发酵持续时间和通气,以实现最佳抗菌产物的产生。分离株(O-7)放线菌已被公认为一种高生物活性产生菌。该分离株在多种生长条件下暴露于不同波长和时间。结果发现,4%浓度的葡萄糖作为碳源对(O-7)紫外线暴露菌株的抗生素生产具有显著的最佳效果,然而,1%浓度的乳糖对(O-7)紫外线暴露菌株的抗生素生产具有显著的最佳效果。发现1%浓度的酵母提取物是(O-7)紫外线暴露菌株的最佳氮源,而pH值7.0被发现最适合该分离株。从温度优化研究中观察到,(O-7)暴露菌株在28°C时生长良好且抗生素产量最高。土壤分离的生物化合物(O-7)对某些类型的细菌和真菌有效,并且该研究还表明,紫外线辐射暴露增强了这些化合物的产生。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a84d/8324928/68f89950c893/gr1.jpg

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