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FOOD SCIENCE (22/12/2020)

Q1. Enzymes Are Mainly Used In Clarification Of Fruit Juice?

A} Pectinase And Pectin Esterases
B} Hemicellulase
C} Cellulase.

D} Amylase

ANSWER – A} Pectinase And Pectin Esterases

Pectin Substance Is The Main Component That Causes A Thick Effect In Fruit Juice That. Which Can Be Removed By Pectinolytic Enzymes Like Pectinase And Pectin Esterases By Depolymerization (Hydrolases And Lyases) Or De-Esterification (Esterases) Reactions.

Q2. Method Of Drying In Which Moisture Food Frozen And Then Sublimated Into Vapour Is Called As?

A} Sun-Drying
B} Lyophilisation
C} Spray Drying
D} Drum Drying

ANSWER – B} Lyophilisation

Lyophilization/Sublimation Drying/Freeze Drying Is The Process Of Drying Frozen Food Under Low-Pressure Or Vacuum By The Principle Of Sublimation (Triple Point Of Water Will Directly Evaporate From Ice To Vapors Form).

Q3. In Food Safety Standard Regulations 2011, The Antibacterial Polypeptide Which Is Permitted As The Preservative In Cheese And Cheese Products Is?

A} Pimaricin
B} Cyclodextrin
C} Nisin
D} Penicillin

ANSWER – C} Nisin

Nisin Is The Antibiotics Produced By Lactococcus Lactis Species And The Nisin Is Generally Produced In Fermented Milk Products And Thus Fssai Approved This As A Preservative In Cheese And Cheese Products.

Q4. For Easy Identification, Most Plastic Containers Are Marked With A Recycling Symbol Containing A Specific Number. What Is The Specific Number For Low-Density Poly Ethylene (LDPE)?

A} 2
B} 3
C} 4
D} 7

ANSWER – C} 4

The Specific Number(Recycling Symbol) Given For Different Plastic Inorder To Identify The Recycling Of Plastic.
1: PET (Polyethylene Terephthalate)
2: HDPE (High-Density Polyethylene)
3: PVC (Polyvinyl Chloride)
4: LDPE (Low-Density Polyethylene)
5: PP (Polypropylene)
6: PS (Polystyrene)
7: Polycarbonate, BPA, And Other Plastics.

Q5. FSSAI Is Located In Region With Head Office Located At?

A} Hyderabad
B} Mumbai
C} Kolkata
D} New Delhi

ANSWER – D} New Delhi

FSSAI Headquarter Located On 03rd & 04th Floor, FDA Bhawan, Kotla Road Near Bal Bhawan New Delhi – 110002 India.

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