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Heated Canned Foods

Heated Canned Foods
The immediate source of the flat sour bacteria is usually the

sugar
plant equipment
starch
soil

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Heated Canned Foods
Medium acid foods with a pH between 5.3 and 4.5 are likely to undergo

flat sour spoilage
putrefaction
both (a) and (b)
TA spoilage

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Heated Canned Foods
The ability of B. coagulans to grow in tomato juice depends upon the

all of these
the availability of oxygen
the pH of the juice
number of spores present

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Heated Canned Foods
The presence of viable non-spore forming bacteria in heat process canned foods indicates leakage of the container. Which of the following is responsible for the spoilage of leaky cans?

Plant equipment
Cooling water
Highly acidic medium
High sugar content

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Heated Canned Foods
Canned poultry is more often spoiled by

Saccharomyces species
Saccharolytic Clostridia than by putrefactive
Micrococcus species
putrefactive than by Saccharolytic Clostridia

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Heated Canned Foods
High acid foods with a pH < 3.7 undergo spoilage by

Saccharolytic anaerobe
B. coagulans
do not undergo spoilage by microorganisms
both (a) and (b)

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