题目内容

Depending on the product and the use of the product, heat can be used to create varying degrees of preservation including______ ,______ ,______ and______ .

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During thermal processing of food, many factors influence the heat resistance of microbial, include ,______ ,______ ,______ ,and______

Factors that influence the heat transfer into or out of the product are ( ).

A. heat exchanger design
B. heat transfer properties of the product
C. density
D. method of heat transfer

( )has a place in food operation, for example in cooling tunnels for chocolate and confectionery.

A. radiation cooling
B. conduction cooling
C. convection cooling
D. evaporative cooling

Banana’s chilling injury during refrigerated storage is below ( ).

A. 20℃
B. 12℃
C. 15℃
D. 18℃

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