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Heated Canned Foods

Heated Canned Foods
Acid foods with a pH between 4.5 and 3.7 usually are spoiled by

B. coagulans
Saccharolytic anaerobe
none of these
both (a) and (b)

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Heated Canned Foods
Which of the following(s) is/are porteolytic or putrefactive decomposing proteins with the production of malodorous compounds such as H2S, mercaptans, ammonia, indole and skatole?

both (a) and (b)
C. butyricum
C. putrifaciens
C. sporogenes

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

sugar
soil
starch
plant equipment

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

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

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

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

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Heated Canned Foods
Canned sweetened condensed milk may become thickened by

Micrococcus species
Clostridium species
Saccharomyces species
Bacillus species

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