欢迎加入尚帕辐照知音联盟! | 登陆 | 注册 | 尚帕网 会员中心 | 收藏本站 | 点击这里给我发消息 | 点击加入辐照技术QQ群
     欢迎您!
  联盟首页 辐照资讯 辐照商城 辐照地图 会员风采 培训会展 文章科普 辐照APP 招标采购 求职招聘 联系我们
   辐 照 资 讯
   辐 照 文 章
   科 普 知 识
     - 伽 玛 辐 照
     - 电子束辐照
     - X-射线辐照
     - 辐 照 应 用
     我要发布文章>>
 
 
 
会员风采前8名,置顶即可在此露脸耶!
 
食品辐照,你需要了解点什么-EN
作者:转载 【阅读原文】

Available in (PDF - 1.52MB).

Food irradiation (the application of ionizing radiation to food) is a technology that improves the safety and extends the shelf life of foods by reducing or eliminating microorganisms and insects. Like pasteurizing milk and canning fruits and vegetables, irradiation can make food safer for the consumer.

The Food and Drug Administration (FDA) is responsible for regulating the sources of radiation that are used to irradiate food. FDA approves a source of radiation for use on foods only after it has determined that irradiating the food is safe.

Why Irradiate Food?

Irradiation can serve many purposes.

  • Prevention of Foodborne Illness – irradiation can be used to effectively eliminate organisms that cause foodborne illness, such as Salmonella and Escherichia coli (E. coli).
  • Preservation – irradiation can be used to destroy or inactivate organisms that cause spoilage and decomposition and extend the shelf life of foods.
  • Control of Insects – irradiation can be used to destroy insects in or on tropical fruits imported into the United States. Irradiation also decreases the need for other pest-control practices that may harm the fruit.
  • Delay of Sprouting and Ripening – irradiation can be used to inhibit sprouting (e.g., potatoes) and delay ripening of fruit to increase longevity.
  • Sterilization – irradiation can be used to sterilize foods, which can then be stored for years without refrigeration. Sterilized foods are useful in hospitals for patients with severely impaired immune systems, such as patients with AIDS or undergoing chemotherapy. Foods that are sterilized by irradiation are exposed to substantially higher levels of treatment than those approved for general use.
     

Debunking Irradiation Myths

Irradiation does not make foods radioactive, compromise nutritional quality, or noticeably change the taste, texture, or appearance of food. In fact, any changes made by irradiation are so minimal that it is not easy to tell if a food has been irradiated.

 

 

 

 

 

How Is Food Irradiated?

There are three sources of radiation approved for use on foods.

  • Gamma rays are emitted from radioactive forms of the element cobalt (Cobalt 60) or of the element cesium (Cesium 137).
    Gamma radiation is used routinely to sterilize medical, dental and household products and is also used for the radiation treatment of cancer.
  • X-rays are produced by reflecting a high-energy stream of electrons off a target substance (usually one of the heavy metals) into food. X-rays are also widely used in medicine and industry to produce images of internal structures.
  • Electron beam (or e-beam) is similar to X-rays and is a stream of high-energy electrons propelled from an electron accelerator
    into food.

Did you know?

National Aeronautics and Space Administration (NASA) astronauts eat meat that has been sterilized by irradiation to avoid getting foodborne illnesses when they fly in space.

Food Irradiation: Launch

 

 

 

 

 

 

Is Irradiated Food Safe to Eat?

FDA has evaluated the safety of irradiated food for more than thirty years and has found the process to be safe. The World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC) and the U.S. Department of Agriculture (USDA) have also endorsed the safety of irradiated food.

Food Irradiation: 3 column foods

What Foods Have Been Approved for Irradiation?

FDA has approved a variety of foods for irradiation in the United States including:

  • Beef and Pork
  • Crustaceans (e.g., lobster, shrimp, and crab)
  • Fresh Fruits and Vegetables
  • Lettuce and Spinach
  • Molluscan Shellfish (e.g., oysters, clams, mussels, and scallops)
  • Poultry
  • Seeds for Sprouting (e.g., for alfalfa sprouts)
  • Shell Eggs
  • Spices and Seasonings

How Will I Know if My Food Has Been Irradiated?

Food Irradiation: LogoFDA requires that irradiated foods bear the international symbol for irradiation. Look for the Radura symbol along with the statement "Treated with radiation" or "Treated by irradiation" on the food label. Bulk foods, such as fruits and vegetables, are required to be individually labeled or to have a label next to the sale container. FDA does not require that individual ingredients in multi-ingredient foods (e.g., spices) be labeled.

It is important to remember that irradiation is not a replacement for proper food-handling practices by producers, processors and consumers. Irradiated foods need to be stored, handled and cooked in the same way as non-irradiated foods, because they could still become contaminated with disease-causing organisms after irradiation if the rules of basic food safety are not followed.

Everyone can practice safe food handling by following these four steps:

The four steps diagram: Clean, Sepearte, Cook, Chill

GEX辐照灭菌指示标签

 

line
  上一篇: 美国疾控中心关于食品辐照安全十问答
  下一篇: 辐射离我们这么近,您真的了解么
   
  辐照商城
   
【声明】本文仅代表作者个人观点,其原创性以及文中陈述文字和内容未经本站证实,转载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述,文章内容仅供参考。 转载此文请务必标注出处及原文链接,否则视为侵犯版权!