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Flashcards in Food Packaging and Processing Deck (66)
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1

Controlled Atmosphere Storage is used commercially in the US for what food products?

Apples, pears, cabbage

2

Heating soda ash and sand can make this packaging material.

Glass

3

How is a 2 piece can different from a 3 piece can?

2 piece cans have no side seams, only a body and lid; 3 piece cans have side seam and consist of a body, lid, and bottom.

4

In packaging, the joining of two or more films with adhesive is called?

Lamination

5

In packaging, what is the function of annealing?

To relieve stress from non-uniform cooling rates

6

In processing, what is meant by "commercial sterility"?

Shelf stable

7

Peter Durand of England patented this important package in 1810.

Tin Can

8

What are the three stages in which a gas or vapor permeate through a polymer?

Sorption, Diffusion, and Desorption

9

What are three common defects in glass containers?

Bird-swings, spikes, wavy appearance

10

What are two organisms that can cause flat sour spoilage of canned foods?

Bacillus stearothermophilus, Bacillus coagulans

11

What are two processes used to make jars?

Press and blow, blow and blow

12

What colors of glass bottles have the highest and the lowest light transmittance?

Highest – clear/flint, lowest – brown

13

What do MAP and CAP stand for?

Modified Atmosphere Packaging and Controlled Atmosphere Packaging

14

What do the letters WVTR stand for?

Water vapor transmission rate

15

What does a headspace scavenger such as ascorbate do in a container?

Reduces oxygen

16

What does CPET stand for?

Crystallized Polyethylene Terephthalate

17

What does IQF stand for?

Individually quick frozen

18

What enzyme activity is most commonly used to determine the adequacy of blanching vegetable for freezing to ensure stability during storage?

Peroxidase

19

What general class of packaging material is used in aseptic brick packs and pringle cans?

Laminates

20

What is another name for PVDC?

Saran

21

What is form, fill, and seal operation (FFS)?

An operation where there is a continuous process of forming the containers without deforming the packaging material, fill with product, and seal

22

What is the difference between thermoforming and FFS?

Thermoforming deforms the packaging material whereas FFS does not

23

What is the function of activated carbon or potassium permanganate in active food packaging?

Absorbing ethylene

24

What is the function of silica gel in active food packaging?

Absorbing moisture

25

What is the process of lowering the temperature of water below its freezing point without crystallization?

Super-cooling or undercooling

26

What is thermoforming?

A process where containers are formed from a reel of packaging material by heating the plastics to the softening point and deforming it to the desired shape

27

What metals make up German silver?

Copper, silver, steel

28

What monomers are used to form PET?

Ethylene glycol and terephthalic acid

29

What packaging material has the best gas barrier?

EVOH (ethyl vinyl alcohol)

30

What packaging material is used to make plastic soft drink bottles?

Polyethylene terepthalate (PET)