Soil enzymes

In this study, with the aim of determining and assessing the influence of several culture conditions on the ligninolytic enzyme (LiP, MnP, and Lac) activity of bacteria, five lignin-degrading bacteria strains were isolated from two different soil samples and cultured on minimum salt medium agar containing alkaline lignin (MSML agar).

10p vibecca 01-10-2024 1 1   Download

In this study, 341 Bacillus sp. strains were isolated from agricultural soils of Turkey. The potent extracellular lipase producer was selected. It was identified by 16S rRNA, named as Bacillus cereus ATA179. Optimal nutritional and physical parameters for lipase production were determined. Sucrose as the carbon source, (NH4 )2 HPO4 as the nitrogen source, CaCl2 as the metal ion were obtained. The best results of physical parameters were stated at 45°C, pH 7.0, shaking rate 50 rpm, inoculation amount 7% and inoculum age 24 h.

14p thiencuuchu 27-11-2021 19 2   Download

In this study we examined diversity and activities of some actinomycetes isolated from mangroves in Giao Thuy, Nam Dinh Province. The distribution of actinomycetes in soil is strongly affected by external factors. Extra-cellular enzyme producing ability of mangrove actinomycetes is very high, particularly the ability of producing cellulase degrading filter paper (122/128 strains), CMC (110/128 strains), protease (83/128 strains) and amylase (78/128 strains).

8p tamynhan8 04-11-2020 16 2   Download

Field experiment was conducted on a sandy loam soil during winter irrigated season of 2015-16 at Department of Farm Management, Tamil Nadu Agricultural University, Coimbatore to study the effect of various organic manures and weed control methods on yield attributes and soil enzyme activities of organic cotton cultivation. The experiment was laid out in strip plot design and replicated thrice. Treatments viz.

9p chauchaungayxua6 26-06-2020 19 3   Download

The research objective of the thesis is to select microorganisms capable of producing laccase, laccaselike from Ba Vi National Forest area, in herbicide / dioxin contaminated soil at Bien Hoa airport. Assessing the ability of decomposing herbicides containing dioxin and reactive dyes by laccase, laccase-like and VSV strains were selected to guide the application in defense activities.

27p xacxuoc4321 11-07-2019 43 5   Download

Cleavage of the arylglycerolb-aryl ether linkage is the most important process in the biological degradation of lignin. Thebacterialb-etherasewasdescribedpreviouslyandshown to be tightly associated with the cellular membrane. In this study, we aimed to detect and isolate a new extracellular function that catalyses theb-aryl ether linkage cleavage of high-molecular lignin in the soil fungi. We screened and isolated 2BW-1 cells by using a highly sensitive fluorescence assay system.

10p fptmusic 16-04-2013 37 4   Download

Penicillium roqueforti is a common saprotrophic fungus from the family Trichocomaceae. Widespread in nature, it can be isolated from soil, decaying organic matter, and plants. The major industrial use of this fungus is the production of blue cheeses, flavouring agents, antifungals, polysaccharides, proteases and other enzymes.

32p kemoc5 18-06-2011 84 6   Download

Selenium Selenium, in the form of selenocysteine, is a component of the enzyme glutathione peroxidase, which serves to protect proteins, cell membranes, lipids, and nucleic acids from oxidant molecules. As such, selenium is being actively studied as a chemopreventive agent against certain cancers, such as prostate. Selenocysteine is also found in the deiodinase enzymes, which mediate the deiodination of thyroxine to triiodothyronine (Chap. 335).

5p konheokonmummim 03-12-2010 77 4   Download