MLT1 Task 5 Essay Example | Topics and Well Written Essays - 250 words

MLT1 Task 5 - Essay ExampleStreptococci lacti) and Lactobacilli (e.g. Lactobacillus casei, L. pentosus), which produce lactic deadly as the end product of fermentation (Buchanan & Cibbons, 1974). Other glucose fermenting bacteria that produce these acids ar Proteus, Shigella, Salmonella, Escherichia coli, Microbacterium and Leuconostoc (Buchanan & Cibbons, 1974).When using phenol red indicator in the broth media, two bacterias that ferment glucose were the E. coli and Shigella sonnei, they produced measurable acid by-product beca role the broth media changed from red to yellow. Therefore, beingnesss like Escherichia coli, ferments glucose through fermentation thereby liberating large come of troika types of acids like succinic, lactic, and acetic, which changes the media from yellow to red (McDevitt, 2009).The Voges Proskauer test is appropriate because of the detection capability of acetoin, which is produced by the bacteria that use it as metabolic intermediate by following t he butane diol pathway (Buchanan & Cibbons, 1974). This test is used when differentiating Escherichia coli from separate Enterobacterspecies like Enterobacteraerogenes because E. coli is positive in methyl radical red yet negative Voges-Proskauer whiles the Enterobacteraerogenes is negative in Methyl red test and positive in Voges-Proskauer (McDevitt, 2009).Availability of main source of food determines the enzymes and the pathway of glucose transfiguration because different nutrients require specific enzymes hence determining the pathway (Dannessa, 2014). However, alternative pathways are used when organism require a specific amount of ATP, since different pathway produce a certain amount of ATP after oxidation of glucose (Dannessa,