PRELAB 1: Other intrinsic factors

Question 1

Other factors

Answer 1

nutrients
biological structure
antimicrobial factors

Question 2

How nutrients affect the growth of microbes

Answer 2

fastidious and non-fastidious organisms
fastidious - difficult to grow in lab setting due to specific nutrients and condition requirement

Question 3

example of a fastidious organism

Answer 3

Neisseria gonorrhea

Question 4

what is a biological structure

Answer 4

arrangement and organization of various components that make up living organisms or biological materials

Question 5

examples of biological structure

Answer 5

outer shells
fascia

Question 6

biological structure in nuts

Answer 6

hard outer shells- peanuts, and almonds to protect them from spoilage

Question 7

biological structure in meat

Answer 7

fascia helps retain moisture and prevent the meat from drying out

Question 8

biological structure in egg

Answer 8

eggshell made of calcium carbonate acts as a strong barrier to protect the egg from external contamination, moisture loss, and microbial invasion

Question 9

antimicrobial factor

Answer 9

naturally occurring factors prevent microbial growth

Question 10

examples of antimicrobial factors in food

Answer 10

lysozyme - egg
lactenin & anti-coliform - milk (present in 1-2 hrs in fresh milk
allicin - garlic
thymol - garlic cloves