You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "what is the reason for irradiating food with gamma rays?" whose answer is sterilization of foods.
Each document should contain about 30 words, and these documents should contain useful information.

Query: reason for irradiating food with gamma rays
Useful Output:

Doc 1: Food irradiation eliminates bacteria and molds like Salmonella and Escherichia coli (E. coli) which can spoil food and cause serious foodborne
Doc 2: Irradiation can be an effective means of eliminating and/or reducing microbial and insect infestations along with the foodborne diseases they induce.
Doc 3: Food irradiation is the process of treating food items and products with x-rays, gamma rays and electron beams to eliminate micro-organisms and pathogens.
Doc 4: For the same level of energy, gamma rays have a greater penetrating power into foods than high-speed electrons. The unit of absorbed dose of
Doc 5: Food irradiation (the application of ionizing radiation to food) is a technology that improves the safety and extends the shelf life of foods