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Heated Canned Foods

Heated Canned Foods
Flat sour spoilage of acid foods is caused by

B. stearothermophillus
both (a) and (b)
B. pepo
B. coagulans

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Heated Canned Foods
The most important kind of chemical spoilage of canned foods is the hydrogen swell which is favored by

increasing acidities of foods
increasing temperature of storage
all of these
imperfection in the tinning and lacquering

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

the availability of oxygen
the pH of the juice
all of these
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?

High sugar content
Cooling water
Plant equipment
Highly acidic medium

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

soil
starch
plant equipment
sugar

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Heated Canned Foods
Canned meat and fish exhibit spoilage by

both (a) and (b)
Saccharomyces
Clostridium species
Bacillus species

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