Journal of Food, Agriculture and Environment
Vol 10,
Issue 3&4,2012
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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High-power pulsed light for microbial decontamination of some fruits and vegetables with different surfaces
Author(s):
Zivile Luksiene 1,
Irina Buchovec 1, Kristina Kairyte 1, Egle Paskeviciute 1, Pranas Viskelis 2*Recieved Date: 2012-06-29, Accepted Date: 2012-09-28
Abstract:This study focused on the evaluation of possibility to use high-power pulsed light (HPPL) for microbial control of fruits and vegetables (FV) with different irregular surfaces. FV were treated with HPPL and afterwards analyzed in terms of microbial contamination, nutritional quality, colour and texture. Results indicated that the decontamination of FV by HPPL was significant compared to control. Naturally distributed mesophilic bacteria were inactivated by 1.0-1.3 log depending on FV surface characteristics. Inoculated Bacillus cereus was more susceptible to pulsed light treatment and its inactivation reached 1.3-2.0 log depending on surface. The increase of temperature on the surface of fruit never exceeded 42°C. No significant changes in vitamin C, total phenolics, antioxidant capacity, firmness and colour were observed in all treated FV. In conclusion, HPPL is effective, non-thermal and environmentally friendly technique which can be applied for microbial control of fruits and vegetables with different irregular surfaces.
Keywords:Non-thermal,
preservation, pulsed light, fruits, vegetablesJournal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 3&4
Category: Food and Health
Pages: 162-167
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