Cancer heat processing

It also appears that traditional forms of food processing may not be as safe as expected. The example of the formation of acrylamide in different heat-processed foods may be cited (see Chapter 13 of this volume). However, there are no incontrovertible answers to the questions is acrylamide in food harmful for consumers , and what is the average intake The American Council on Science and Health states that there is no credible evidence that acrylamide in foods poses human cancer risk. New Zealand food safety experts, using a no observable adverse effect level for acrylamide of 0.1 mg per kg bodyweight, also estimate that people eating fried potatos and crisps (products suspected to contain the largest amounts of acrylamide) are a very low risk of cancer from this source. European Union experts decided that the risk of exposure to polyacrylamide in food remains undetermined (Sharp, 2003). 

Folic acid is easily lost during storage of fresh vegetables at room temperature and through many heat processes. Oxidative destruction of 50-95% of the folate can occur with protracted cooking or canning. Currently in the United States folate is added to all enriched or fortified cereal and flour products in order to increase this nutrient to prevent neural tube defects and to reduce coronary disease and some cancers. Thus, the processed, fortified product will have more folate. 

Keum YS, Park KK, Lee JM, Chun KS, Park JH, Lee SK, Kwon H, Surh YJ. Antioxidant and anti-tumor promoting activities of the methanol extract of heat-processed ginseng. Cancer Lett 2000 150 41-48. 

When molecules react thermally, at room temperature or on heating, they are in their lowest electronic states. However, when reactions occur on irradiation of the molecules with visible or ultraviolet light, the processes involve species in electronic excited states. Some of the details of such processes are known, but there is still much to do. Since photoexcitation is important in many areas— photosynthesis, photography, electronic displays, solar cells, cancer-causing ul-... 

The PMA process requires it to be demonstrated that a device has clinical utility. The idea of clinical utility goes beyond safety and efficacy it means that a device is capable of providing clinically significant results. Kahan [7] illustrates this simply by reference to a hypothermia device. The intended purpose of the hypothermia device is to heat tissue. The device may be used in cancer treatment. Little is known of the therapeutic benefit of hypothermia devices to the treatment of cancer. Premarket approval for a hypothermia device based on a new technology approval would require data indicating clinically significant results from the use of the device in the treatment of cancer. 

ORIGIN/INDUSTRY SOURCES/USES produced from coal tar processing, petroleum refining, heat and power generation sources no commercial-scale production produced and distributed for research purposes, extensively in cancer research by-product of chemical production, combustion of tobacco and fuels... 

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