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Heated Canned Foods

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

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

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

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

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Heated Canned Foods
Which of the following strain(s), that grow in the jellies and candid fruits, are able to grow in sugar concentration upto 67.5%?

All of these
Penicillium
Aspergillus
Citromyces

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Heated Canned Foods
The canned acid foods such as pineapple, tomatoes and pears have been found spoiled by C. pasteurianum. Such spoilage is more likely when the pH of the food is

>4.5
>5.3
<4.5
<5.3

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Heated Canned Foods
High acid foods with a pH above 5.3 are especially subjected to

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

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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?

Highly acidic medium
Plant equipment
High sugar content
Cooling water

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