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Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle

The dynamic laser speckle (biospeckle) method was tested as a potential tool for the assessment and monitoring of the maturity stage of tomatoes. Two tomato cultivars—Admiro and Starbuck—were tested. The process of climacteric maturation of tomatoes was monitored during a shelf life storage experime...

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Autores principales: Pieczywek, Piotr Mariusz, Nowacka, Małgorzata, Dadan, Magdalena, Wiktor, Artur, Rybak, Katarzyna, Witrowa-Rajchert, Dorota, Zdunek, Artur
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5948744/
https://www.ncbi.nlm.nih.gov/pubmed/29617343
http://dx.doi.org/10.3390/s18041093
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author Pieczywek, Piotr Mariusz
Nowacka, Małgorzata
Dadan, Magdalena
Wiktor, Artur
Rybak, Katarzyna
Witrowa-Rajchert, Dorota
Zdunek, Artur
author_facet Pieczywek, Piotr Mariusz
Nowacka, Małgorzata
Dadan, Magdalena
Wiktor, Artur
Rybak, Katarzyna
Witrowa-Rajchert, Dorota
Zdunek, Artur
author_sort Pieczywek, Piotr Mariusz
collection PubMed
description The dynamic laser speckle (biospeckle) method was tested as a potential tool for the assessment and monitoring of the maturity stage of tomatoes. Two tomato cultivars—Admiro and Starbuck—were tested. The process of climacteric maturation of tomatoes was monitored during a shelf life storage experiment. The biospeckle phenomena were captured using 640 nm and 830 nm laser light wavelength, and analysed using two activity descriptors based on biospeckle pattern decorrelation—C4 and ε. The well-established optical parameters of tomatoes skin were used as a reference method (luminosity, a*/b*, chroma). Both methods were tested with respect to their prediction capabilities of the maturity and destructive indicators of tomatoes—firmness, chlorophyll and carotenoids content. The statistical significance of the tested relationships were investigated by means of linear regression models. The climacteric maturation of tomato fruit was associated with an increase in biospckle activity. Compared to the 830 nm laser wavelength the biospeckle activity measured at 640 nm enabled more accurate predictions of firmness, chlorophyll and carotenoids content. At 640 nm laser wavelength both activity descriptors (C4 and ε) provided similar results, while at 830 nm the ε showed slightly better performance. The linear regression models showed that biospeckle activity descriptors had a higher correlation with chlorophyll and carotenoids content than the a*/b* ratio and luminosity. The results for chroma were comparable with the results for both biospeckle activity indicators. The biospeckle method showed very good results in terms of maturation monitoring and the prediction of the maturity indices of tomatoes, proving the possibility of practical implementation of this method for the determination of the maturity stage of tomatoes.
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spelling pubmed-59487442018-05-17 Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle Pieczywek, Piotr Mariusz Nowacka, Małgorzata Dadan, Magdalena Wiktor, Artur Rybak, Katarzyna Witrowa-Rajchert, Dorota Zdunek, Artur Sensors (Basel) Article The dynamic laser speckle (biospeckle) method was tested as a potential tool for the assessment and monitoring of the maturity stage of tomatoes. Two tomato cultivars—Admiro and Starbuck—were tested. The process of climacteric maturation of tomatoes was monitored during a shelf life storage experiment. The biospeckle phenomena were captured using 640 nm and 830 nm laser light wavelength, and analysed using two activity descriptors based on biospeckle pattern decorrelation—C4 and ε. The well-established optical parameters of tomatoes skin were used as a reference method (luminosity, a*/b*, chroma). Both methods were tested with respect to their prediction capabilities of the maturity and destructive indicators of tomatoes—firmness, chlorophyll and carotenoids content. The statistical significance of the tested relationships were investigated by means of linear regression models. The climacteric maturation of tomato fruit was associated with an increase in biospckle activity. Compared to the 830 nm laser wavelength the biospeckle activity measured at 640 nm enabled more accurate predictions of firmness, chlorophyll and carotenoids content. At 640 nm laser wavelength both activity descriptors (C4 and ε) provided similar results, while at 830 nm the ε showed slightly better performance. The linear regression models showed that biospeckle activity descriptors had a higher correlation with chlorophyll and carotenoids content than the a*/b* ratio and luminosity. The results for chroma were comparable with the results for both biospeckle activity indicators. The biospeckle method showed very good results in terms of maturation monitoring and the prediction of the maturity indices of tomatoes, proving the possibility of practical implementation of this method for the determination of the maturity stage of tomatoes. MDPI 2018-04-04 /pmc/articles/PMC5948744/ /pubmed/29617343 http://dx.doi.org/10.3390/s18041093 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Pieczywek, Piotr Mariusz
Nowacka, Małgorzata
Dadan, Magdalena
Wiktor, Artur
Rybak, Katarzyna
Witrowa-Rajchert, Dorota
Zdunek, Artur
Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title_full Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title_fullStr Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title_full_unstemmed Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title_short Postharvest Monitoring of Tomato Ripening Using the Dynamic Laser Speckle
title_sort postharvest monitoring of tomato ripening using the dynamic laser speckle
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5948744/
https://www.ncbi.nlm.nih.gov/pubmed/29617343
http://dx.doi.org/10.3390/s18041093
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