Ionizing radiation has long been used to strengthen plastic films. It is now being increasingly used with plastic films in aseptic packaging systems due to some advan tages it has over other pre-sterilizing techniques The author also describes effects of ionizing radiation on plastic films when packaged food is being pasteurized or sterilized.
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References
1.
McGowin, G.L., Director of FDA's Food and Color Additives Division as quoted in Food Chemical News (January 9, 1984)
2.
Schwartz, P.S. , "Regulatory Requirements for New Packaging Material and Processing Technologies," Food Technology, 39(12):61 - 63 (1985)
3.
Anon., Food Chemical News, p 3 (November 14, 1983).
4.
U.S. Patent 3,780,308; Process and Apparatus for Surface Sterilization of Materials (December 18, 1973).
5.
Killoran, J.J., "Packaging Irradiated Foods," Preservation of Foods by Ionizing Radiation , Vol II, Chapter 8, CRC Press Inc., Boca Raton, FL (1983 )
