Card 201
Question
In regards to food packaging, what is an active MAP?
Answer
Modified atmosphere packaging that actively controls the gas composition inside a package. e.g. adding carbon dioxide and nitrogen into packagi
Food Packaging
Discover Food Packaging: 308 flashcards with questions and answers.
- Subject
- Sciences / Chemistry
- Language of creation
- English
308 flashcards
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Cards in this set
Card 202
Question
Give the main reason why polyethylene films are used for packaging fresh fruit.
Answer
Modified atmosphere packaging. Oxygen permeability rate can be varied with the respiration rate of the food.
Card 203
Question
HDPE is a good barrier to what?
Answer
Moisture barrier
Card 204
Question
Large cuts of meat are often covered by plastic sacks, cheeses dipped in wax, and eggs dipped in a thin, harmless oil to help protect these foods against the loss of what common component?
Answer
Moisture or water. NOTE: These measures may also serve other purposes, i.e. loss of carbon dioxide from eggs, but we want the component COMMON to each of the examples.
Card 205
Question
Products more than .5 oz, what should it contain on the label?
Answer
Name of the product and weight or amount
Card 206
Question
Is cellophane a petroleum or natural fiber product?
Answer
Natural Fiber
Card 207
Question
What is the term for the threaded part of a glass jar?
Answer
Neck Finish or Thread Finish
Card 208
Question
Which gas is most commonly used in modified atmosphere packaging to inhibit oxidative rancidity?
Answer
Nitrogen
Card 209
Question
Is glass a crystalline or non-crystalline structure?
Answer
Non-crystalline (amorphous)
Card 210
Question
What is the common name for the US can size 603 x 700?
Answer
Number ten can
Card 211
Question
Describe the shapes of the two pieces used to make the typical two piece metal can for food.
Answer
One piece is a cylinder with a closed end and the other is a flat circle
Card 212
Question
State the full name that corresponds w/the recycling #7 for recyclable polymers.
Answer
Other (lexan polycarbonate returnable milk bottles)
Card 213
Question
Which property of a packaging material is most critical for protecting lipid-containing foods from oxidative rancidity?
Answer
Oxygen barrier (or permeability)
Card 214
Question
What is the name given to the process of treating stainless steel with an oxidizing pickling treatment to create a corrosion resistant protective oxide layer?
Answer
Passivation
Card 215
Question
What is Passive MAP?
Answer
Passive MAP= relies on natural interaction between the food and packaging material without actively manipulating the gas composition inside the package
Card 216
Question
What is the difference between active and passive MAP?
Answer
Passive= relies on the natural interaction between food and packaing material, Active= gas composition will be changed such as the addition of N2, CO2, etc.
Card 217
Question
Which compound is the sealing layer in brik package?
Answer
PE
Card 218
Question
State the full name that corresponds with recycling #1 for recyclable polymers.
Answer
PET (polyethylene teraphtalate)
Card 219
Question
In food packaging, polyester is usually known as?
Answer
PET (Polyethylene Terephthalate)
Card 220
Question
What polymer is commonly used in beverage bottles due to its gas barrier properties?
Answer
PET (polyethylene terephthalate)
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