Q. Presence of E. Coli in food indicates
- Over processing
- Fecal contamination
- Poor raw material
- Reason cannot be ascertained from above
Answer: b)
Fecal contamination is the most cause of e.coli in food although poor raw material is also a cause but the microbiological point of view fecal contamination is the cause of e.coli.
Q. The preservation technique using radiation is also known as
- Cold sterilization
- Dry sterilization
- Heat sterilization
- Uperization
Answer: a)
The preservation technique using radiation is non-thermal approach and the technique of preservation using radiation is called as Cold sterilization.
Q. For the preservation of vegetables by drying vegetables must be
- Blanched
- sulfured
- salted
- autoclaved
Answer: a)
Blanching is the pretreatment before the drying which helps in inhibiting the enzyme peroxidase which can may be affect the color of the product and nutritive value of the product.
Q. ________preserves food by slowing down the growth and reproduction of microorganisms and the action of enzymes that causes the food to rot
- Cooling
- Freezing
- Curing
- Boiling
Answer: a)
Cooling preserves food by slowing down the growth and reproduction of microorganisms and the action of enzymes that causes the food to rot.
Q. Which product are often boiled to kill any harmful microbes and microorganisms that may be present in them
- Sugar
- Salt
- Milk
- Apple
Answer: c)
Milk and water are often boiled to kill any harmful microbes that may be present in them.
