Lab 16 Food Microbiology.pdf 2026/2027!!!
Lab 16: Food Microbiology
Study online at https://quizlet.com/_bgko5x
1. What is an indicator organism? An organism whose pres-
ence in a sample suggests
the presence of other po-
tentially pathogenic fecal
organisms.
2. True or False False
The flash method of pasteurization is capable of ster-
ilizing a liquid sample.
3. The by-products of fermentation in yeast include Carbon dioxide, alcohols,
acidic end-products
4. While the heterotrophic pate count technique will give This method is only test-
us a good idea of the number of microbes found in the ing for organisms able
food sample the actual number of those present in this to grow under the specif-
sample could be much higher. Why? ic growth conditions test-
ed, other organisms may
a. The colonies may fuse together making the cell require different parame-
count seem lower than it actually is. ters.
b. The heterotrophic plate count doesn't account for
any endospores present.
c. This method is only testing for organisms able to
grow under the specific growth conditions tested, oth-
er organisms may require different parameters.
d. Most microbes in our food would be autotrophs and
therefore would not be able to grow in this medium.
e. Because we diluted our sample so that the number
is only a fraction of what is actually present.
5. True or False True
1/3
Page 1 of 3 9/15/2026
Lab 16: Food Microbiology
Study online at https://quizlet.com/_bgko5x
1. What is an indicator organism? An organism whose pres-
ence in a sample suggests
the presence of other po-
tentially pathogenic fecal
organisms.
2. True or False False
The flash method of pasteurization is capable of ster-
ilizing a liquid sample.
3. The by-products of fermentation in yeast include Carbon dioxide, alcohols,
acidic end-products
4. While the heterotrophic pate count technique will give This method is only test-
us a good idea of the number of microbes found in the ing for organisms able
food sample the actual number of those present in this to grow under the specif-
sample could be much higher. Why? ic growth conditions test-
ed, other organisms may
a. The colonies may fuse together making the cell require different parame-
count seem lower than it actually is. ters.
b. The heterotrophic plate count doesn't account for
any endospores present.
c. This method is only testing for organisms able to
grow under the specific growth conditions tested, oth-
er organisms may require different parameters.
d. Most microbes in our food would be autotrophs and
therefore would not be able to grow in this medium.
e. Because we diluted our sample so that the number
is only a fraction of what is actually present.
5. True or False True
1/3
Page 1 of 3 9/15/2026
