Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics
Abstract BACKGROUND Dry‐salted cod ( Gadus morhua ) must be rehydrated before consumption and this step can take up to 5 days. Desalting of cod on an industrial scale poses many problems, mainly related to the long processing times and the quality of the final product. For this reason, many research...
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crwiley:10.1002/jsfa.11852 2024-09-30T14:35:16+00:00 Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics Genovese, Jessica Tappi, Silvia Tylewicz, Urszula D'Elia, Fabio De Aguiar Saldanha Pinheiro, Ana C. Rocculi, Pietro 2022 http://dx.doi.org/10.1002/jsfa.11852 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.11852 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jsfa.11852 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Journal of the Science of Food and Agriculture volume 102, issue 11, page 4961-4965 ISSN 0022-5142 1097-0010 journal-article 2022 crwiley https://doi.org/10.1002/jsfa.11852 2024-09-17T04:48:17Z Abstract BACKGROUND Dry‐salted cod ( Gadus morhua ) must be rehydrated before consumption and this step can take up to 5 days. Desalting of cod on an industrial scale poses many problems, mainly related to the long processing times and the quality of the final product. For this reason, many researchers have focused on finding new desalting methods to improve mass transfer. The application of pulsed electric fields (PEF) has been proposed as an alternative method for improving mass transfer in many food processes. However, there is no previous literature on the use of PEF to improve animal tissue rehydration. Therefore, the present study aimed to investigate the influence of two PEF pre‐treatments [PEF (1) 500 V cm −1 and PEF (2) 1000 V cm −1 ] on mass transport kinetics during the rehydration process of salted cod. The rehydration process was carried out under static conditions for 6 days, immersing dry‐salted cod samples in tap water (5 ± 0.5 °C). RESULTS The results show that the use of PEF technology increases the rate of the rehydration process of dry‐salted cod and influences the redistribution of salt. In general, the samples pre‐treated with PEF showed higher weight gain and lower salt loss than the control samples during the rehydration process. CONCLUSION The application of PEF prior to rehydration of salted cod samples could be of interest to the food industry as a result of a higher process yield (higher weight gain) and the possibility to reduce the water renewal because less NaCl is lost in the wastewater. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. Article in Journal/Newspaper Gadus morhua Wiley Online Library Journal of the Science of Food and Agriculture |
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Wiley Online Library |
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English |
description |
Abstract BACKGROUND Dry‐salted cod ( Gadus morhua ) must be rehydrated before consumption and this step can take up to 5 days. Desalting of cod on an industrial scale poses many problems, mainly related to the long processing times and the quality of the final product. For this reason, many researchers have focused on finding new desalting methods to improve mass transfer. The application of pulsed electric fields (PEF) has been proposed as an alternative method for improving mass transfer in many food processes. However, there is no previous literature on the use of PEF to improve animal tissue rehydration. Therefore, the present study aimed to investigate the influence of two PEF pre‐treatments [PEF (1) 500 V cm −1 and PEF (2) 1000 V cm −1 ] on mass transport kinetics during the rehydration process of salted cod. The rehydration process was carried out under static conditions for 6 days, immersing dry‐salted cod samples in tap water (5 ± 0.5 °C). RESULTS The results show that the use of PEF technology increases the rate of the rehydration process of dry‐salted cod and influences the redistribution of salt. In general, the samples pre‐treated with PEF showed higher weight gain and lower salt loss than the control samples during the rehydration process. CONCLUSION The application of PEF prior to rehydration of salted cod samples could be of interest to the food industry as a result of a higher process yield (higher weight gain) and the possibility to reduce the water renewal because less NaCl is lost in the wastewater. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. |
format |
Article in Journal/Newspaper |
author |
Genovese, Jessica Tappi, Silvia Tylewicz, Urszula D'Elia, Fabio De Aguiar Saldanha Pinheiro, Ana C. Rocculi, Pietro |
spellingShingle |
Genovese, Jessica Tappi, Silvia Tylewicz, Urszula D'Elia, Fabio De Aguiar Saldanha Pinheiro, Ana C. Rocculi, Pietro Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
author_facet |
Genovese, Jessica Tappi, Silvia Tylewicz, Urszula D'Elia, Fabio De Aguiar Saldanha Pinheiro, Ana C. Rocculi, Pietro |
author_sort |
Genovese, Jessica |
title |
Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
title_short |
Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
title_full |
Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
title_fullStr |
Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
title_full_unstemmed |
Dry‐salted cod ( Gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
title_sort |
dry‐salted cod ( gadus morhua) rehydration assisted by pulsed electric fields: modelling of mass transfer kinetics |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/jsfa.11852 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jsfa.11852 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jsfa.11852 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Journal of the Science of Food and Agriculture volume 102, issue 11, page 4961-4965 ISSN 0022-5142 1097-0010 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/jsfa.11852 |
container_title |
Journal of the Science of Food and Agriculture |
_version_ |
1811638589234085888 |