Question

Would high exposures to ionizing radiation (such as x-rays) be effective in making milk safe?

Answer 1

Ionizing radiation is a energy released by atoms travels in the form of electromagnetic waves (gamma or X-rays) or particles.The treatment has a range of effects, icluding killing bacteria,molds and insect pests,reducing the ripening and spoiling of fruits and at higher doses inducing sterility.this technology is called pasteurization.

  The milk is pasteurized by heating to 63°C for 30 minutes or 72°C for 15 seconds. Mild heating kills all pathogenic bacteria and reduces the load of spoilage bacteria but preserves most properties of the milk.Normal pasteurization will preserve milk for two to three weeks.Milk may become contaminated with bacteria during or after milking.so pasteurization is required.

FDA placed strict limits on the intensity of the gamma radiation used in the food sterilization, to ensure that it stays well below the level where there will be radioactivity induced in the food being sterilized. The FDA limits energy of the sterilizing gamma radiation to 4 million electron volts, which is below the threshold required to induce radioactivity.