Reference number : GC-2017-Q2-00369, amendment number : , agreement type : G, recipient legal name : Jayaram, Sheshakamal (University of Waterloo), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for Universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Heat treatment methods such as thermal pasteurization are predominantly utilized as a means to inactivate_x000D_
spoilage microbes. However, heat treatment methods are energy intensive and adversely affect nutritional and_x000D_
organoleptic quality of the preserved food. In the recent years non-thermal processes like pulsed electric field_x000D_
(PEF) technology has been investigated for commercial applications. PEF devices consist of a pair of_x000D_
electrically conductive metal electrodes, separated by a known gap distance. High voltage pulses are applied to_x000D_
one of the electrodes while keeping the other electrode at ground potential. The resulting electric field causes_x000D_
irreversible breakdown of cell membrane; hence microbial inactivation._x000D_
Brewery regulations in Canada do not necessitate pasteurization of craft beer; hence, PEF processing finds a_x000D_
potential application in the brewing industry. PEF treatment being a non-thermal, the fresh like taste and the_x000D_
nutritional value are better retained than with conventional thermal pasteurization. However, due to the flow of_x000D_
current during the PEF processing, metal ions are released from the electrodes. The amount of metal released_x000D_
depends on the type of product, the specific composition of electrodes and the type of pulses used. This_x000D_
proposed research investigates the applicability of the PEF processing to craft beer, through a pressurized_x000D_
processing chamber that has been designed to eliminate release of most metal ions._x000D_
With a strong cooperation between the University of Waterloo and Innocente Brewing Company, we are_x000D_
confident in demonstrating the effectiveness of the PEF pasteurization for craft beer, using the modified UW's_x000D_
PEF facility. Systematic tests with precise control of the applied pulse, treatment time, and other parameters,_x000D_
like medium temperature and energy are being considered to evaluate metal ions released during the PEF_x000D_
processing and their consequent effect, if any, on the taste and the shelf life. The knowledge and technology_x000D_
that are expected as outcome of this research are of direct benefit for microbreweries in promoting their new_x000D_
premium products., program purpose french : Heat treatment methods such as thermal pasteurization are predominantly utilized as a means to inactivate_x000D_
spoilage microbes. However, heat treatment methods are energy intensive and adversely affect nutritional and_x000D_
organoleptic quality of the preserved food. In the recent years non-thermal processes like pulsed electric field_x000D_
(PEF) technology has been investigated for commercial applications. PEF devices consist of a pair of_x000D_
electrically conductive metal electrodes, separated by a known gap distance. High voltage pulses are applied to_x000D_
one of the electrodes while keeping the other electrode at ground potential. The resulting electric field causes_x000D_
irreversible breakdown of cell membrane; hence microbial inactivation._x000D_
Brewery regulations in Canada do not necessitate pasteurization of craft beer; hence, PEF processing finds a_x000D_
potential application in the brewing industry. PEF treatment being a non-thermal, the fresh like taste and the_x000D_
nutritional value are better retained than with conventional thermal pasteurization. However, due to the flow of_x000D_
current during the PEF processing, metal ions are released from the electrodes. The amount of metal released_x000D_
depends on the type of product, the specific composition of electrodes and the type of pulses used. This_x000D_
proposed research investigates the applicability of the PEF processing to craft beer, through a pressurized_x000D_
processing chamber that has been designed to eliminate release of most metal ions._x000D_
With a strong cooperation between the University of Waterloo and Innocente Brewing Company, we are_x000D_
confident in demonstrating the effectiveness of the PEF pasteurization for craft beer, using the modified UW's_x000D_
PEF facility. Systematic tests with precise control of the applied pulse, treatment time, and other parameters,_x000D_
like medium temperature and energy are being considered to evaluate metal ions released during the PEF_x000D_
processing and their consequent effect, if any, on the taste and the shelf life. The knowledge and technology_x000D_
that are expected as outcome of this research are of direct benefit for microbreweries in promoting their new_x000D_
premium products., agreement title english : Pulsed electric field treatment applied to microbreweries for processing craft beer, agreement title french : Pulsed electric field treatment applied to microbreweries for processing craft beer, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-08-23, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada