1. Science
  2. Biology
  3. i need help solving these serial dilution problems for my...

Question: i need help solving these serial dilution problems for my...

Question details

I need help solving these serial dilution problems for my microbiology lab.

7J Fifty-eight ml of whey were mixed with 100 ml of water, and three successive 1:10 dilutions were made. Two sets of duplicate pour plates were made containing 0.1 and 1.0 ml of the final dilution. The plates containing 0.1 ml of the sample have 50 and 54 colonies after incubation, while the plates containing 1.0 ml contained 550 colonies on each. What was the total count of whey sample (bacteria per ml)? S20 Avg- S*S od: 8. Thirty-two g of a food sample were blended with 68 g of water. Two successive dilutions of 1:10 were made. The technician prepared only one plate and accidentally added 1.1 ml instead of 1.0 ml to the plate. After incubation, 78 colonies were counted. State the count in bacterla per gram of sample.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution