FOOD QUALITY AND SAFETY
QUALITY CONTROL IN FOOD PROCESSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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polyethylene
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polypropylene
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polystyrene
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polyamide
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Detailed explanation-1: -Aramid Fibre Packings, up to 400 °C The glass-fibre core of the packing improves its thermal and mechanical properties, together with its abrasion resistance. Packings retain their characteristics up to an operating temperature of 350 °C and can withstand peak temperatures of 400 °C.
Detailed explanation-2: -Polypropylene (PP) Like most plastics, this material is recyclable, leak-resistant, and sturdy. Their strength makes them ideal to withstand hot and cold temperatures so you can package a variety of meals.
Detailed explanation-3: -Polyvinyl chloride Polyvinyl chloride (PVC), an addition polymer of vinyl chloride, is heavy, stiff, ductile, and a medium strong, amorphous, transparent material. It has excellent resistance to chemicals (acids and bases), grease, and oil; good flow characteristics; and stable electrical properties.
Detailed explanation-4: -Polyethylene is a kind of plastic derived from petroleum polymers. It’s one of the most durable types of plastic in existence today. It’s also inexpensive and highly chemically resistant. This means it can survive a variety of environmental hazards.