The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study
This study aimed to assess the feasibility of the use of instrumental methods such as digital image analysis (DIA) and near-infrared reflectance spectroscopy (NIRS) to objectively characterise changes in freshness (shelf-life) of half shell Pacific oysters, Crassostrea gigas. Oysters were stored in...
Published in: | Innovative Food Science & Emerging Technologies |
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Language: | English |
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2013
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Online Access: | https://espace.library.uq.edu.au/view/UQ:ac18fe7 |
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:ac18fe7 2023-05-15T15:58:11+02:00 The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study Madigan, Thomas Kiermeier, Andreas Carragher, John De Barros Lopes, Miguel Cozzolino, Daniel 2013-07-01 https://espace.library.uq.edu.au/view/UQ:ac18fe7 eng eng Elsevier BV doi:10.1016/j.ifset.2013.04.005 issn:1466-8564 orcid:0000-0001-6247-8817 Digital image analysis Near-infrared reflectance spectroscopy Oysters Shelf-life 1600 Chemistry 1106 Food Science 2209 Industrial and Manufacturing Engineering Journal Article 2013 ftunivqespace https://doi.org/10.1016/j.ifset.2013.04.005 2020-08-06T21:18:38Z This study aimed to assess the feasibility of the use of instrumental methods such as digital image analysis (DIA) and near-infrared reflectance spectroscopy (NIRS) to objectively characterise changes in freshness (shelf-life) of half shell Pacific oysters, Crassostrea gigas. Oysters were stored in air under PVC film for five days at 4 C. On a daily basis, oysters were photographed with a digital camera, spectra were collected using a Fourier transform NIR spectrometer in reflectance mode and odour analysed by a sensory panel. Calibrations based on NIRS were successfully developed for days of storage (R = 0.8, RER = 5.37) and odour (R = 0.77, RER = 7.77) with the latter being influenced by wavelengths typically associated with aromatic compounds. However, colour (derived from digital images) was found to be a poor indicator of freshness. This work has demonstrated the feasibility of NIRS as an objective measure of oyster freshness. Industrial relevance This manuscript describes a feasibility study that assesses the use of digital image analysis and near-infrared spectroscopy to objectively define the freshness of half shell oysters. Successful near-infrared calibrations were developed for days of refrigerated storage and also for odour. We have also demonstrated the potential for use this applications in food processors and retailers to rapidly evaluate freshness and quality of products. The proposed method shows promise for at-line analysis. Article in Journal/Newspaper Crassostrea gigas The University of Queensland: UQ eSpace Pacific Innovative Food Science & Emerging Technologies 19 204 209 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Digital image analysis Near-infrared reflectance spectroscopy Oysters Shelf-life 1600 Chemistry 1106 Food Science 2209 Industrial and Manufacturing Engineering |
spellingShingle |
Digital image analysis Near-infrared reflectance spectroscopy Oysters Shelf-life 1600 Chemistry 1106 Food Science 2209 Industrial and Manufacturing Engineering Madigan, Thomas Kiermeier, Andreas Carragher, John De Barros Lopes, Miguel Cozzolino, Daniel The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
topic_facet |
Digital image analysis Near-infrared reflectance spectroscopy Oysters Shelf-life 1600 Chemistry 1106 Food Science 2209 Industrial and Manufacturing Engineering |
description |
This study aimed to assess the feasibility of the use of instrumental methods such as digital image analysis (DIA) and near-infrared reflectance spectroscopy (NIRS) to objectively characterise changes in freshness (shelf-life) of half shell Pacific oysters, Crassostrea gigas. Oysters were stored in air under PVC film for five days at 4 C. On a daily basis, oysters were photographed with a digital camera, spectra were collected using a Fourier transform NIR spectrometer in reflectance mode and odour analysed by a sensory panel. Calibrations based on NIRS were successfully developed for days of storage (R = 0.8, RER = 5.37) and odour (R = 0.77, RER = 7.77) with the latter being influenced by wavelengths typically associated with aromatic compounds. However, colour (derived from digital images) was found to be a poor indicator of freshness. This work has demonstrated the feasibility of NIRS as an objective measure of oyster freshness. Industrial relevance This manuscript describes a feasibility study that assesses the use of digital image analysis and near-infrared spectroscopy to objectively define the freshness of half shell oysters. Successful near-infrared calibrations were developed for days of refrigerated storage and also for odour. We have also demonstrated the potential for use this applications in food processors and retailers to rapidly evaluate freshness and quality of products. The proposed method shows promise for at-line analysis. |
format |
Article in Journal/Newspaper |
author |
Madigan, Thomas Kiermeier, Andreas Carragher, John De Barros Lopes, Miguel Cozzolino, Daniel |
author_facet |
Madigan, Thomas Kiermeier, Andreas Carragher, John De Barros Lopes, Miguel Cozzolino, Daniel |
author_sort |
Madigan, Thomas |
title |
The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
title_short |
The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
title_full |
The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
title_fullStr |
The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
title_full_unstemmed |
The use of rapid instrumental methods to assess freshness of half shell Pacific oysters, Crassostrea gigas: A feasibility study |
title_sort |
use of rapid instrumental methods to assess freshness of half shell pacific oysters, crassostrea gigas: a feasibility study |
publisher |
Elsevier BV |
publishDate |
2013 |
url |
https://espace.library.uq.edu.au/view/UQ:ac18fe7 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_relation |
doi:10.1016/j.ifset.2013.04.005 issn:1466-8564 orcid:0000-0001-6247-8817 |
op_doi |
https://doi.org/10.1016/j.ifset.2013.04.005 |
container_title |
Innovative Food Science & Emerging Technologies |
container_volume |
19 |
container_start_page |
204 |
op_container_end_page |
209 |
_version_ |
1766393917164486656 |