Modified microorganism evaluation

Table II. EVALUATION OF A MODIFIED MICROORGANISM FOR ENVIRONMENTAL RELEASE...

HOAt showed no significant inhibition in a study designed to evaluate the effects on the respiration rate of sewage sludge microorganisms contained in activated sludge. HOAt and HATU were not readily biodegradable when evaluated in 28 day modified Sturm tests. 

To determine what microorganism types are susceptible to the antimicrobial soap product, as well as the rates of microbial inactivation, in vitro tests should be conducted. These include time-kill kinetic evaluations, minimum inhibition concentration evaluations, and microbial sensitivity tests. However, in order to determine the actual effectiveness, human-use studies must be conducted. There are three common ways of evaluating antimicrobial hand soaps (1) the health care personnel handwash evaluation, (2) the modified Cade handwash procedure, and (3) the general-use handwash evaluation. 

For the application in biorefineries, a part of the so far undesired microorganisms from the food and forage production (e.g. silage) and their products can be newly evaluated. It is the case when undesirable by-products become desirable products, e.g. for the chemical industry. For that, the metabolic pathways are specifically utilised for these products and will be modified at time. A few examples of organic acids which could attain greater meaning and their microbial producers are described in the following section. 

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