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food preservation

Authored by Никита Тютьков

Biology

1st - 5th Grade

Used 2+ times

food preservation
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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The main reason of food spoilage.

Mechanical damage

Microorganisms

Insects

Protein denturation

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Drying is a....

physical process

chemical process

Bioprocess

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Most of the microorganisms can not grow at water activity

0.88

0.98

1.0

1.1

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What happens to bacteria when cooled to -18°C

cellular death

growth reduction

growth of thermophilic bacteria

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

High pressure processing (HPP)

Destroys aroma and vitamins

Destroys vitamins and color

Destroys bacteria

Inactivates enzymes

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Freezing

Inhibits biochemical and physiochemical reaction

kills bacteria and spores

occurs between 8 and 0 C

occurs only below -10 degrees

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Chiling

is below -18 degrees

reduces water activity

slows down growth of bacteria

leads to ice crystalization

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