Compute the number of cfus per gram of the yogurt

Assignment Help Biology

Reference no: EM13177139

One mL of yogurt was added to 99 ml of sterile diluent. Decimal (1/10) dilutions were then made, and one-tenth ml was plated in duplicate on Plate Count Agar. After incubation, the following colony counts were made:

- Initial dilution TNTC,TNTC
- First 1/10 dilution TNTC, TNTC
- Second 1/10 dilution 412, 422
- Third 1/10 dilution 54, 56
- Fourth 1/10 dilution 6,4

Dilution Colony count Using the data, calculate the number of CFUs per gram of the yogurt (1mL of yogurt = 0.4g).

Reference no: EM13177139

Questions Cloud

What will be the resulting ph : If 25 mL of 0.060 M HClO4 is mixed with 50 mL of 0.060 M KOH, what will be the resulting pH?

What mass of ch4 must be added to the co2 : An 11.0 gram sample of CO2 exerts a pressure of 50.0kPa. What mass of CH4 must be added to the CO2 in order to increase the pressure of 75.0 kPa? Assume no CO2 escapes.

What is the volume of the balloon : A 0.035L balloon is inflated to a pressure of 52.0kPa. What is the volume of the balloon if the pressure is decreased to 30.8kPa?

Why do you get mostly the meso compound : when you reduce benzoin with NaBH4, why do you get mostly the meso compound?

Compute the number of cfus per gram of the yogurt : Dilution Colony count Using the data, calculate the number of CFUs per gram of the yogurt (1mL of yogurt = 0.4g).

Which of the following will have the lowest freezing point : Which of the following will have the lowest freezing point?

Explain why the salt of a weak acid : Explain why the salt of a weak acid, as well as the acid itself, must be present to form a bu?er solution.

What will happen to the equilibrium price : Suppose you are studying the market for shoes. Two events take place simultaneously. First, price of leather decreases, and second, consumers' income increases. What will happen to the equilibrium price and equilibrium quantity of shoes?

intelligence tests have island of brilliance : Some people who score low on intelligence tests have an “island of brilliance,” which refers to some incredible ability, such as heightened musical memory.

User Account

All Pages