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Food Technology > Packaging > Flashcards

Packaging Flashcards

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1
Q

Sustainability is also a function of packaging ?

A

True

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2
Q

Protection, preventing contaminations, maintain freshness are functions of 2° oackage?

A

False
1°

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3
Q

Additional branding opportunity is given by 1° package?

A

False
2°

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4
Q

… Facilitates transport and handling by containing multiple units of …packages

A

2°
1°

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5
Q

Pouch, blister packs are examples of…
Shrink wrap, trays are examples of…

A

1°
2°

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6
Q

For movement/ bulk handling, shipment and logistics .. packaging is used

A

3°

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7
Q

Fragile, deformable, damagable goods are packed in .. packaging

A

Protective packaging

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8
Q

Optimising packing design, minimising resource consumption are features of ..

A

Sustainable packaging

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9
Q

…packaging extends shelf life without need of refrigeration or preservation

A

Aseptic packaging

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10
Q

In aseptic packing, product is sealed in pack and the sterilised under sterile condition?

A

Flase
First product and package sterilised seperately…then filled and sealed in aseptic condition. Prevents reinfection

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11
Q

Aseptic packaging done esp for … And ..

A

Perishable food and beverages

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12
Q

Tetra packs are …layered and the layers from out to in are….and functions

A

6
Polythene- from moisture
Paper board-stability and strength
Polythene adhesion layer
Al foil-O2, flavour, light barrier
Polythene adhesion layer
Food grade polythene- seals in liquid

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13
Q

In vacuum packaging,100%removal is not actually possible, but aims at removing all air especially oxygen to limit growth of aerobic bac/ fungi?

A

True

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14
Q

Vacuum packing usually done for perishable foods like ….and also for …

A

Meat, fish, veg
Cheese, potato chips,nuts,cereals

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15
Q

Vacuum packing inhibits microbial growth, maintain freshness?

A

True

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16
Q

For dry food packaging…is done

A

Vacuum packing

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17
Q

MAP is used esp for

A

Freshly produced foods
Bakery snacks

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18
Q

For preventing fat ocidation ..is filled in MAP, which also act as bulking agent precenting pack from collapsing

A

Nitrogen

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19
Q

In some soft drinks and fruits juices ..is addede to inhibit mould and bacteria

A

SO2

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20
Q

Apart from N, O, and CO2 the gases used are

A

Ar, He, Ne, SO2

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21
Q

To prevent botulism in white fish …packing is done

A

MAP

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22
Q

MAP can be used to pack, freshly produced fruits and vegetables, meat, poultry, fish etc

A

True

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23
Q

By MAP it retards only chemical changes to food

A

No
Chemical, metabolic, inhibit microbial growth

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24
Q

In MAP higher oxygen conc is recommended for ..
And…. Because?

A

Red meat: oxygenate myoglobin
Marine fish: prevent formation of trimethylamine

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25
Q

For packing marine fishes in MAP, oxygen conc should be

A

> =30%

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26
Q

For nuts, snacks in MAP oxygen conc is kept ..

A

Low

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27
Q

Oxygen in MAP for PH fruits and veg and why

A

Require constant supply of oxygen for preventing off flavour development by; ethanol, acetaldehyde

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28
Q

F and V if not provided constant supply of … Will produce off flavour due to the formation of … And ..

A

Oxygen
Ethanol, acetaldehyde

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29
Q

Among the usually used gases in MAP which one has an antimicrobial property

A

CO2

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30
Q

Brown stain in lettuce is due to …(High/low) Conc of ….gas in ….packing

A

High CO2
MAP

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31
Q

Antimicrobial action of CO2 is by, inhibiting cellular metabolic enzymes, cell membrane distruption

A
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32
Q

Among blending gases, as 100 %CO2 not possible and to compensate dissolution loss of it, N2 is used especially in food with…(High/ low) Water activity and …(More/less) Susceptible to spoilage?

A

Low
Less

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33
Q

Less fragile food like cooked meat prefer….packaging

A

Vacuum

34
Q

Interactive packaging provides features for promoting, accesing digital content, encourage consumers, by incorporating features like ; QR code, …and ..

A

AR markers- Augmented Reality
NFC tags-Near Field Communication

35
Q

Interactive packaging provides features for promoting, accesing digital content, encourage consumers, by incorporating features like ; QR code, …and ..

A

AR- Augmented Reality
NFC Near Field Communication

36
Q

Functional additives are added in .. packing and also has provision to repair tears

A

Nano packing

37
Q

Materials used in nano packaging are

A

Silver
Nano Titanium dioxide
Titanium nitride
Nano Zn oxide
Nano clay

38
Q

Versatile packaging method is …xue to its applicability in diff shape, size, weight

A

Shrink wrap

39
Q

Packing material for dahi, yoghurt, ice cream is

A

Earthen pot
Surface mud + 10ft deep mud

40
Q

Wood: fresh f& v, processed
Glass: beverages, ketchup, jam, milk

A

True

41
Q

…can be used as it facilitate post packed sterilization and has high temp resistance

A

Glass

42
Q

Closure is the main issue with

A

Glass bottle

43
Q

1) strongest paper is….& Is used as ..and …packing

A

1) kraft paper, 2° & 3°

44
Q

For printing and labelling…papaer used

A

Sulfited paper

45
Q

Glassine paper is similar to

A

Butter or grease proof paper

46
Q

Paper with silicone coating which is non aticky and heat resistant hence used for oven or direct heating at upto 420°F or 215°C

A

Parchment paper

47
Q

Supercalandering process is associated with ..paper which is translucent and smooth used for presentation or storage of bakery items

A

Glassine paper

48
Q

Grease proof paper may or may not be non sticky?

A

True

49
Q

CFBs are made of paper with GSM

A

> /= 250gsm

50
Q

Kraft is a …word meaning strong

A

German

51
Q

Kraft paper is made stronger by alkaline treatyto modify lignin

A

True

52
Q

Fibre boards are used for … Packing (1°,2°,3°)

A

2°

53
Q

4 main metals used for packing

A

Steel
Aluminium
Tin
Chromium

54
Q

Al meral is carefully purified to reduce amount of …and…

A

Mg
Mn

55
Q

Inner lacquer lining is essential in …container

A

Tin plate

56
Q

Acrylics, alkydes, epoxy phenols/ esters, vinyls are used as

A

Lacquer in tin plated containers

57
Q

Advantages of tin palte container; light weight, high mechanical strength, low cost, can be used in high speed devices
Disadvantages are

A

Dent leak, rusting

58
Q

Tin plated containers are used to pack

A

Milk powder
Baby foods
Cheese
Meat and fish produy
Edible oils
Jam
Biscuits,
Processed f& v

59
Q

Al has limited use because of its low mechanical strength though they are corrosion resistant than steel, but are used in thin beverage cans because

A

CO2 s internal pressure gives extra rigidity

60
Q

Tin is applied ectrolytically to steel cans to give corossion resistance to steel cans and hence called

A

Tin cans

61
Q

Kraft : german: strong
Plastic: : easily shaped: plastikos

A

Greek

62
Q

Plastics are generally….of organic material polymer having higher molecular weight and long chained

A

Petroleum byproduct

63
Q

Plastic are of two types one which once nelted and formed cant be melted and refirmed again, the other which xan be melted and reformed again and again

A

Thermoset
Thermoplastic

64
Q

If one type of monomer in plastic resin…
If more ….

A

Homopolymer
Copolymers

65
Q

Coplolymer examples

A

Ethylene vinyl acetate
Proplylebe ethylene
Ethylene acrylic acid
Ethylene ethyl acrylate
Vinyl chloride propylene
Ethylene vinyl alcohol

66
Q

Another range of plastic with improved greae/ oil/ solvent resistance and melt strength. …is made by adding … groups to chain of ..

A

Ionomers
Carboxyluc acid group
Polymer chain of ethylene (eg)

67
Q

Boil in bag pouches are made from….with are copolymer of ethylene and ….copolymerised in low pressure

A

Linear LDPE
Alpha olefins( butene, hexene, octene)

68
Q

LDPE: milk, f&v, frozen food
HDPE: Butter container, cereal box, bakery
PP: (cup-harder) spice/grain/candied fruit box
PVC: curd, icecream, spread
BOPP: extruded products,N2 flushed, vacuum packed, bakery

A

True

69
Q

Hard, high impact strength, moisture resistant, low fas permeability, chemical resistant, pack curd, cream, spread

A

PVC

70
Q

Vacuum , nitrogen flushed , extruded, bakery are packed in

A

BOPP
Biaxially oriented poly propylene

71
Q

Which is like PVC have high impact strength, low loisture and gas permeability and in addition to these has glossy appearance and excellent printability

A

PET polyster/ polyethylene teraphthalate

72
Q

Easy printability, resistant to cutting, abrasion, bursting

A

Nylon 6/PA polyamide

73
Q

PS chem resistant (PVC), Easy processing, rigid( Hdpe, PP)

A

Poly styrene

74
Q

Safe to food contact, thermal conductivity, acid and alkali resistant

A

Expanded ps

75
Q

Single use plastic has been banned from ….of 2022 including…and..

A

Ps and Eps

76
Q

Micro ovenable materials

A

CPET» EVOH, PVDC
crystallized polyster
Ethylene vinyl alcohol
Polyvinylidene chlorode

77
Q

High barrier resins like …are used in …materials as they overcome flavour loss

A

EVOH , PVDC
Micro ovenable

78
Q

Aseptic : ..word:…..= …..
Palstic:..
Kraft:…

A

Greek, septicos= absence of putrefaction mos
Greek: plastiKos= shaped or refprmed
German: …strong

79
Q

Tetra packs have ..layers and are used after …process

A

UHT pasteurisation

80
Q

Edible food wraps are made of

A

Highly concentrated f and veg purie

81
Q

….are examoles of f and v used for making edible food wraps

A

Carrot
Broccoli
Tomato
Apple pear peech
Papaya mango

82
Q

Most recyclable friendly packaging material

A

Glass

Food Technology (10 decks)

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