Sterol is a polycyclic alcohol such as a cholesterol or ergosterol. Cortisone steroid can be synthesized chemically from deoxycholic acid. This process requires 37 steps many of which must be carried out under extreme condition of temperature and pressure with the resulting product costing over $200 per gram. Deoxycholic acid → Cortisone So cortisone synthesis is an example of steroid [...]
'The antibiotics' are secondary metabolites or biochemical secreted by microorganisms which, ' in low concentration, inhibit the growth or kill other microorganisms, i.e., the antibiotics are 'antimicrobial agents of microbial origin'. Although some 6,000 antibiotics are known to exist, only about 100 are marketed. About 200 new antibiotics are discovered every year. Microorganisms belonging to three orders viz., Eubacteriales, Actinomyces [...]
Everything you need to know about food and dairy microbiology. Some of the most frequently asked questions are as follows:- Q.1. What are naturally occurring antimicrobial substances in some foods and how do they work? Ans: Eggs contain lysozyme which causes lysis of cell walls of bacteria as lysozyme breaks down peptidoglycan. Eggs also contain conalbumin and riboflavin both of [...]