Transform microbial colony

Just as there are many different types of systems, there are many different types of transforms. In the algebraic system pictured in Figure 1.2, the system transform is the algebraic relationship y = a + 2. In the wine-making system shown in Figure 1.3, the transform is the microbial colony that converts raw materials into a Hnished wine. Transforms in the chemical process industry are usually sets of chemical reactions that transform raw materials into finished products. 

Tellurium may also be transformed by reduction and methylation (Chasteen and Bentley, 2003). Reduction of tellurite to Te results in a gray to black coloration of microbial colonies, with extracellular and intracellular precipitation being observed (Gharieb et al., 1999). Dimethyl telluride (DMTe) is the main product of Te methylation (Chasteen and Bentley, 2003). 

Example 2.1 An experimenter challenges a benzalkonium chloride disinfectant with 1 X 10 Staphylococcus aureus bacteria in a series of timed exposures. As noted earlier, exponential microbial colony counts are customarily linearized via a logio scale transformation, which has been performed in this example. The resultant data are presented in Table 2.1. 

With Salmonella typhirium, the amino acid considered is histidin His — His These microbial transformations translate the modification of the organism s genome under the influence of mutagenic substances. The test results are expressed as the number of reverse-mutating colonies per treated culture, in relation to control cultures. 

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