1. Yeast are most likely to grow in frozen fruits during

A. slow thawing
B. refrigeration
C. ambient temperature
D. none of these

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2. Watery soft rot is found mostly in

A. fruits
B. vegetables
C. cereals
D. all of these

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3. Black mold rot is caused by

A. A.flavus
B. A. niger
C. Trichoderma
D. Trichothecium roseum

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4. Concentrate of fruits and vegetable juices

A. favor the growth of A. niger and A. flavus species
B. favor the growth of yeast and of acid and sugar tolerant Leuconostoc and Lactobacillus species
C. favor the growth of Saprophytic bacteria
D. none of the above

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5. The predominant micro-organisms in frozen foods are

A. bacteria
B. micro-coccus
C. yeast and molds
D. none of these

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