caa a22 4500 397566948 CHVBK 20180308164830.0 cr unu---uuuuu 161202e199609 xx s 000 0 eng 10.3382/ps.0751133 doi (NATIONALLICENCE)oxford-10.3382/ps.0751133 DUNN JOSEPH PurePulse Technologies, Inc., 4241 Ponderosa Avenue, San Diego, California 92123 Pulsed Light and Pulsed Electric Field for Foods and Eggs [Elektronische Daten] [JOSEPH DUNN] Two new technologies for use in the food industry are described. The first method discussed uses intense pulses of light. This pulsed light (PureBright ®) process uses short duration flashes of broad spectrum "white” light to kill all exposed microorganisms, including vegetative bacteria, microbial and fungal spores, viruses, and protozoan oocysts. Each pulse, or flash, of light lasts only a few hundred millionths of a second (i.e., a few hundred microseconds). The intensity of each flash of light is about 20,000 times the intensity of sunlight at the earth's surface. The flashes are typically applied at a rate of about one to tens of flashes per second. For most applications, a few flashes applied in a fraction of a second provide an effective treatment. High microbial kill can be achieved, for example, on the surfaces of packaging materials, on packaging and processing equipment, foods, and medical devices as well as on many other surfaces. In addition, some bulk materials such as water and air that allow penetration of the light can be sterilized. The results of tests to measure the effects of pulsed light on Salmonella enteritiditis on eggs are presented. The second method discussed uses multiple, short duration, high intensity electric field pulses to kill vegetative microorganisms in pumpable products. This pulsed electric field (or CoolPure ™) process can be applied at modest temperatures at which no appreciable thermal damage occurs and the original taste, color, texture, and functionality of products can be retained. © 1996 Poultry Science Association, Inc. Processing and Products nationallicence pulsed light nationallicence pulsed electric field nationallicence microbial kill nationallicence cool pasteurization nationallicence egg nationallicence Poultry Science Oxford University Press 75/9(1996-09), 1133-1136 0032-5791 75:9<1133 1996 75 ps https://doi.org/10.3382/ps.0751133 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3382/ps.0751133 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- DUNN JOSEPH PurePulse Technologies, Inc., 4241 Ponderosa Avenue, San Diego, California 92123 NATIONALLICENCE 773 0- Poultry Science Oxford University Press 75/9(1996-09), 1133-1136 0032-5791 75:9<1133 1996 75 ps Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford