Q. Which of the following is/are the type(s) of radiation used for food preservation?

1. X- ray irradiation
2. Gamma ray Irradiation
3. Alpha ray irradiation
4. Electron Irradiation
5. UV-B irradiation

Select the correct answer using the codes given below:
Answer: Only 1, 2 & 4
Notes: Food preservation methods using radiation include: - X-ray Irradiation: Utilizes x-rays from tungsten or tantalum. offers high dose uniformity and penetration but is costly. - Gamma Irradiation: A more affordable method using cobalt-60 and cesium-137, commonly used for disinfesting fruits. - Electron Irradiation: Employs high-energy electrons from accelerators for disinfecting packaging and disinfesting grains and bulk crops. - UV-C Irradiation: Uses ultraviolet C radiation from UV-C lamps to disinfect food products like fruit juices.