Microbial transformation of steroid hormones

Physico- chemical properties of soil: Agricultural use of soil affected its chemical properties . The changes in these properties were associated with the organic and inorganic fertiliser management practices at each plot. Soil from the organic plot showed an increase in organic carbon content ( Table 1 ) compared to other plots, this might be due to the addition of organic amendments as they are the sources of nitrogen and carbon to soils. This agrees with finding from several other researchers, Kumar et al . (2000) found that the organic materials, applied alone or in combination with inorganic fertilizer gave greater residual soil fertility in terms of increase in organic carbon content from to as high as % and the available N, P and K in the 2-years cropping cycle.

In the case of alkanes, mono-oxygenase attack results in the production of alcohol. Most microorganisms attack alkanes terminally whereas some perform sub-terminal oxidation. The alcohol product is oxidized finally into an aldehyde and finally to a fatty acid . The latter is degraded further by beta-oxidation. Different microorganisms exhibit different group specificities. For example, some grow on alkanes of six to ten carbons in chain length, whereas, others grow on long chain alkanes. Some of the oxygenases are encoded on plasmids and others on chromosomal genes. Subterminal oxidation apparently occurs in some bacterial species ( Markovetz and Kallio, 1971 ).

Tattoo inks are mostly unregulated, and blood-borne diseases have reportedly been spread by tainted ink. In 2012, the FDA linked a multi-state bacterial outbreak to contaminated tattoo inks. An investigation detailed in the New England Journal of Medicine found the contamination “could have occurred at various points in the ink-production process”—meaning that tattoo parlors probably weren’t to blame. “Tattoo inks are considered to be cosmetics,” the report’s authors write. As a result, inks are allowed into the marketplace without much oversight, and the FDA and other public safety organizations only step in when something bad happens.

Microbial transformation of steroid hormones

microbial transformation of steroid hormones

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