The following ingredient list represents which type of growth media? Beef extract 1.5 g Yeast extract 3.0 g Peptone 6.0 g Glucose 1.0 g Agar 15.0 g water 1000 ml pH 6.6

Please submit your assignment on the following topic 1. Lipid Hydrolysis Test principle and their importance? 2.Starch Hydrolysis Test principle and their importance? 3.Nitrate Reduction Test principle and their importance? 4.Voges Proskauer Test principle and their importance? 5.Methyl Red Test principle and their importance?

name a hidden commonly added chemical to the bleaching process of flour, sugar, and rice combined? not referring to bleach, sugar , fats, or salts

A lab interested in isolating Escherichia coli from food samples uses a lot of Eosin Methylene Blue (EMB) Agar. The recipe for this media is 36 g/L deionized water. How many grams of media would be required to prepare 350 plates assuming 20 mL per plate? 072 O 112 O 90 O 252

Time point (min) Absorbance of culture at 660nm Approximate cell concentration Approximate # cells in 1mL extract 0 0.298 1.49 x 108 cells/mL 1.49 x 108 cells 10 0.316 1.58 x 108 cells/mL 1.58 x 108 cells 20 0.374 1.87 x 108 cells/mL 1.87 x 108 cells 30 0.429 2.145 x 108 cells/mL 2.145 x 108 cells 40 0.512 2.56 x 108 cells/mL 2.56 x 108 cells 50 0.544 2.72 x 108 cells/mL 2.72 x 108 cells 60 0.607 3.035 x 108 cells/mL 3.035 x 108 cells a. Using these data, prepare a growth curve of this strain ofEscherichia coli (E. coli).b. Estimate the doubling time for this strain of E. Coli. Clearly showhow you estimated this value from the empirical data presented.

Rosemary essential oil stimulates circulation and thins the blood, which is beneficial for arteriosclerosis and high cholesterol. The best method of application for these conditions is

Describe how a Triple Sugar Iron agar tube would appear if the following situation was true. Please note that all items in the following list are occurring in the same tube of agar. 1. Positive for glucose fermentation 2. Negative for lactose and sucrose fermentation 3. Positive for H2S production 4. Negative for gas production

Starch Hydrolysis: In many tests it is acceptable to read a positive result before the inoculation time is completed. Why is this not the case with Starch Agar?

In disc diffusion studies, where will the lowest concentration of the tested chemical be in the agar plate? in the agar directly below the disc O in the agar halfway between the disc and the petri dish wall O in the agar furthest away from the disc the cehmical is equally distributed throughout the agar

Below is an image of 3 different bacteria, letter labeld, growing on MacConkey Agar. Note that bacteria such as E. coli use mixed acid fermentation, with very high acid production which will cause a colored precipitation around colonies on MacConkey agar. MacConkey Agar C