Secondary metabolites produced by the microorganisms have resulted in the production of antibiotics. Explain the reason for microorganisms to produce secondary metabolites and provide a growth curve sketching indicating the time of secondary metabolites production.
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- Microbial secondary metabolites are compounds produced by strains of certain microbial(antimicrobial agent).such as penicillin and cephalosporin. Describe the industrial fermentation process of each of these antibiotics. 1.media preparation (carbon source, nitrogen source, salts, oxygen requirements),Temperature and pH maintained.What is the optimum growth temperature for most human pathogens? Explain.Microbial secondary metabolites are compounds produced by strains of certain microbial(antimicrobial agent).such as penicillin and cephalosporin. Describe the industrial fermentation process of each of these antibiotics. 1.name of the strain used as inoculum 2.type of fermentation process (batch, fed-batch, continuous) and bioreactor used. 3.media preparation (carbon source, nitrogen source, salts, oxygen requirements) 4.Temperature and pH maintained.
- Cite metabolites, other that antibiotics, produced by microorganisms that can inhibit the growth of other microorganisms. In what general way are these different from antibiotics?Describe the five phases of a microbial growth curve observed when growing microbes are grown in broth culture and discuss the causes of eachMicroorganisms are often grouped according to their optimum growth temperatures. Which groups are most likely to spoil refrigerated foods?
- Why does a precipitate form on Sierra’s medium when inoculated with a lipolytic organism? Discuss the principle behind this procedure.Give a short comparison between alcohols and aldehydes as chemical antimicrobial agents.Briefly explain this statement "Antineoplastic natural products- Taxol".please explain at your own words.
- Identify the causative agent of staphylococcal food poisoning and explain the method for transmission of the bacteria to food sources. Describe the characteristics of the staphylococcal toxin.Explain the mechanism of action of several of the physical and chemical agents employed to control microbial growth.Identify two factors( in detail)that make biofilms more tolerant to antimicrobials including their mode of action.