Journal
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
Volume 56, Issue 4, Pages 591-613Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10408398.2013.826174
Keywords
UV; pulsed light treatment; minimal processing; Listeria monocytogenes; ready-to-eat; packaging; meat
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Funding
- Osterreichische Forschungsforderungsgesellschaft mbH (FFG) [835133]
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Today, the increasing demand for minimally processed foods that are at the same moment nutritious, organoleptically satisfactory, and free from microbial hazards challenges the research and development to establish alternative methods to reduce the level of bacterial contamination. As one of the recent emerging nonthermal methods, pulsed light (PL) constitutes a technology for the fast, mild, and residue-free surface decontamination of food and food contact materials in the processing environment. Via high frequency, high intensity pulses of broad-spectrum light rich in the UV fraction, viable cells as well as spores are inactivated in a nonselective multi-target process that rapidly overwhelms cell functions and subsequently leads to cell death. This review provides specific information on the technology of pulsed light and its suitability for unpackaged and packaged meat and meat products as well as food contact materials like production surfaces, cutting tools, and packaging materials. The advantages, limitations, risks, and essential process criteria to work efficiently are illustrated and discussed with relation to implementation on industrial level and future aspects. Other issues addressed by this paper are the need to take care of the associated parameters such as alteration of the product and utilized packaging material to satisfy consumers and other stakeholders.
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