Inactivation of iron dependent bacterium using visible and near

Details Inactivation of iron dependent bacterium using visible and near Inactivation of iron dependent bacterium using visible and near

1998-11-03

2000-02-29

Bhat, N.

Food or edible material: processes, compositions, and products

Direct application of electrical or wave energy to food...

Treatment with ultraviolet or visible light

422 24, 426238, 99451, 99483, A61L 200

Patent

active

06030653&

ABSTRACT:
An apparatus and process are provided for cold pasteurizing a food product such as a ground beef food product, using visible and near infrared light. The invention includes radiating the food product with pulsed near infrared light having a wavelength capable of penetrating the food product to at least about one centimeter in depth and further, radiating nonionizing radiation into the food product to inactivate bacterium, particularly iron dependent bacterium, therein. The nonionizing radiation preferably includes visible and near infrared wavelengths, with ultraviolet wavelengths filtered therefrom. The invention may further include using a pulsed heat exchanger to supercool the food product during the pulsed radiation treatment.

REFERENCES:
patent: 5034235 (1991-07-01), Dunn et al.
patent: 5489442 (1996-02-01), Dunn et al.
patent: 5597597 (1997-01-01), Newman
patent: 5900211 (1999-05-01), Dunn et al.

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