A practical approach for fish freshness determinations using a portable electronic nose

A portable electronic nose was developed and applied to fish freshness determinations of Argentinean hake. The applied methodology differs from the typical ones based on the headspace method or glass syringe manipulation. In the present study, a weighted piece of fish is introduced into a sensor...

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Detalles Bibliográficos
Autores principales:	O'Connell, Manuela, Negri, Ricardo Martin
Publicado:	2001
Materias:	Electronic nose Fish freshness Food control Principal component analysis Electronic equipment Fisheries Food preservation Syringes Portable electronic noses Chemical sensors
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09254005_v80_n2_p149_OConnell http://hdl.handle.net/20.500.12110/paper_09254005_v80_n2_p149_OConnell
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09254005_v80_n2_p149_OConnell
record_format	dspace
spelling	paper:paper_09254005_v80_n2_p149_OConnell2023-06-08T15:51:20Z A practical approach for fish freshness determinations using a portable electronic nose O'Connell, Manuela Negri, Ricardo Martin Electronic nose Fish freshness Food control Principal component analysis Electronic equipment Fisheries Food preservation Principal component analysis Syringes Portable electronic noses Chemical sensors A portable electronic nose was developed and applied to fish freshness determinations of Argentinean hake. The applied methodology differs from the typical ones based on the headspace method or glass syringe manipulation. In the present study, a weighted piece of fish is introduced into a sensor's chamber and the signals of the sensors due to the fish emissions are recorded as function of time. Commercial gas sensors, based on tin dioxide, were used. Analysis of the individual sensor signals and of the array's pattern was performed. An increase of the signals was observed with increasing storage days and the mass of the hake pieces (up to 50g). The obtained response patterns are independent of the weight but change after some days of storing, indicating the rottenness of the sample. Two different patterns are obtained, associated to rotten and non-rotten samples, respectively. These patterns are independent of storage conditions; for example, the pattern of a rotten sample is the same independently if the piece was stored several days in a refrigerator or if was kept out for 1 day. Hence, it is quick and easy to identify between fresh and old samples. These results were confirmed by performing principal component analysis (PCA). © 2001 Elsevier Science B.V. All rights reserved. Fil:O'Connell, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Martín Negri, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09254005_v80_n2_p149_OConnell http://hdl.handle.net/20.500.12110/paper_09254005_v80_n2_p149_OConnell
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Electronic nose Fish freshness Food control Principal component analysis Electronic equipment Fisheries Food preservation Principal component analysis Syringes Portable electronic noses Chemical sensors
spellingShingle	Electronic nose Fish freshness Food control Principal component analysis Electronic equipment Fisheries Food preservation Principal component analysis Syringes Portable electronic noses Chemical sensors O'Connell, Manuela Negri, Ricardo Martin A practical approach for fish freshness determinations using a portable electronic nose
topic_facet	Electronic nose Fish freshness Food control Principal component analysis Electronic equipment Fisheries Food preservation Principal component analysis Syringes Portable electronic noses Chemical sensors
description	A portable electronic nose was developed and applied to fish freshness determinations of Argentinean hake. The applied methodology differs from the typical ones based on the headspace method or glass syringe manipulation. In the present study, a weighted piece of fish is introduced into a sensor's chamber and the signals of the sensors due to the fish emissions are recorded as function of time. Commercial gas sensors, based on tin dioxide, were used. Analysis of the individual sensor signals and of the array's pattern was performed. An increase of the signals was observed with increasing storage days and the mass of the hake pieces (up to 50g). The obtained response patterns are independent of the weight but change after some days of storing, indicating the rottenness of the sample. Two different patterns are obtained, associated to rotten and non-rotten samples, respectively. These patterns are independent of storage conditions; for example, the pattern of a rotten sample is the same independently if the piece was stored several days in a refrigerator or if was kept out for 1 day. Hence, it is quick and easy to identify between fresh and old samples. These results were confirmed by performing principal component analysis (PCA). © 2001 Elsevier Science B.V. All rights reserved.
author	O'Connell, Manuela Negri, Ricardo Martin
author_facet	O'Connell, Manuela Negri, Ricardo Martin
author_sort	O'Connell, Manuela
title	A practical approach for fish freshness determinations using a portable electronic nose
title_short	A practical approach for fish freshness determinations using a portable electronic nose
title_full	A practical approach for fish freshness determinations using a portable electronic nose
title_fullStr	A practical approach for fish freshness determinations using a portable electronic nose
title_full_unstemmed	A practical approach for fish freshness determinations using a portable electronic nose
title_sort	practical approach for fish freshness determinations using a portable electronic nose
publishDate	2001
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09254005_v80_n2_p149_OConnell http://hdl.handle.net/20.500.12110/paper_09254005_v80_n2_p149_OConnell
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A practical approach for fish freshness determinations using a portable electronic nose

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