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Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness
RESEARCH BACKGROUND: Fish freshness and quality monitoring are of high importance for consumers, retailers and fishing industry. Therefore, developing novel approaches that are simple, fast, non-destructive and inexpensive to monitor fish freshness in real time is of great value. One alternative is...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
University of Zagreb Faculty of Food Technology and Biotechnology
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901331/ https://www.ncbi.nlm.nih.gov/pubmed/36816881 http://dx.doi.org/10.17113/ftb.60.04.22.7588 |
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author | Kuswandi, Bambang Hasanah, Faridatul Pratoko, Dwi Koko Kristiningrum, Nia |
author_facet | Kuswandi, Bambang Hasanah, Faridatul Pratoko, Dwi Koko Kristiningrum, Nia |
author_sort | Kuswandi, Bambang |
collection | PubMed |
description | RESEARCH BACKGROUND: Fish freshness and quality monitoring are of high importance for consumers, retailers and fishing industry. Therefore, developing novel approaches that are simple, fast, non-destructive and inexpensive to monitor fish freshness in real time is of great value. One alternative is using Intelligent or smart packaging to monitor the freshness or conditions of packaged fish. EXPERIMENTAL APPROACH: On-package dual indicator label based on paper-based pH sensors was developed for real-time monitoring of the milkfish (Chanos chanos) freshness. The paper-based pH sensor was prepared using bromocresol purple (BCP) and bromothymol blue (BTB) that were immobilized onto a filter paper by dip coating. Herein, the fish degradation could be monitored visually by the dual indicator label, where the BCP changes from yellow to pink, then finally to purple, while the BTP changes from orange to green-yellow, and finally to green-blue to indicate fresh, medium fresh or spoiled product, respectively. RESULTS AND CONCLUSION: The label responds to the pH change caused by the fish degradation and the colour of dual indicator changes to show the fish freshness at room temperature and chiller conditions. This pH change was followed by changes in the other parameters related to fish freshness, such as total volatile basic nitrogen (TVBN), total viable count (TVC), texture and odour. The threshold of fish spoilage at room temperature was observed at 8 h and under chiller conditions at 7 days when the deterioration time point was indicated by the colour changes. Thus, it can be concluded that the dual indicator label can be applied as a simple and low-cost on-package active label for fish freshness monitoring. NOVELTY AND SCIENTIFIC CONTRIBUTION: Increasing consumer concerns about quality and safe food worldwide has boosted the search for a novel approach to food monitoring. In this work, a simple and practical on-package dual indicator label for real-time monitoring of fish freshness was developed. The colorimetric pH sensor was obtained simply by dip-coating of filter paper, yet it enables easy and accurate detection of fish spoilage with the naked eye. Similarly, the dual indicator label changes colour for other freshness parameters, such as TVBN, TVC, texture and odour. |
format | Online Article Text |
id | pubmed-9901331 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | University of Zagreb Faculty of Food Technology and Biotechnology |
record_format | MEDLINE/PubMed |
spelling | pubmed-99013312023-02-16 Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness Kuswandi, Bambang Hasanah, Faridatul Pratoko, Dwi Koko Kristiningrum, Nia Food Technol Biotechnol Original Scientific Papers RESEARCH BACKGROUND: Fish freshness and quality monitoring are of high importance for consumers, retailers and fishing industry. Therefore, developing novel approaches that are simple, fast, non-destructive and inexpensive to monitor fish freshness in real time is of great value. One alternative is using Intelligent or smart packaging to monitor the freshness or conditions of packaged fish. EXPERIMENTAL APPROACH: On-package dual indicator label based on paper-based pH sensors was developed for real-time monitoring of the milkfish (Chanos chanos) freshness. The paper-based pH sensor was prepared using bromocresol purple (BCP) and bromothymol blue (BTB) that were immobilized onto a filter paper by dip coating. Herein, the fish degradation could be monitored visually by the dual indicator label, where the BCP changes from yellow to pink, then finally to purple, while the BTP changes from orange to green-yellow, and finally to green-blue to indicate fresh, medium fresh or spoiled product, respectively. RESULTS AND CONCLUSION: The label responds to the pH change caused by the fish degradation and the colour of dual indicator changes to show the fish freshness at room temperature and chiller conditions. This pH change was followed by changes in the other parameters related to fish freshness, such as total volatile basic nitrogen (TVBN), total viable count (TVC), texture and odour. The threshold of fish spoilage at room temperature was observed at 8 h and under chiller conditions at 7 days when the deterioration time point was indicated by the colour changes. Thus, it can be concluded that the dual indicator label can be applied as a simple and low-cost on-package active label for fish freshness monitoring. NOVELTY AND SCIENTIFIC CONTRIBUTION: Increasing consumer concerns about quality and safe food worldwide has boosted the search for a novel approach to food monitoring. In this work, a simple and practical on-package dual indicator label for real-time monitoring of fish freshness was developed. The colorimetric pH sensor was obtained simply by dip-coating of filter paper, yet it enables easy and accurate detection of fish spoilage with the naked eye. Similarly, the dual indicator label changes colour for other freshness parameters, such as TVBN, TVC, texture and odour. University of Zagreb Faculty of Food Technology and Biotechnology 2022-12 /pmc/articles/PMC9901331/ /pubmed/36816881 http://dx.doi.org/10.17113/ftb.60.04.22.7588 Text en https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY) 4.0 License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Scientific Papers Kuswandi, Bambang Hasanah, Faridatul Pratoko, Dwi Koko Kristiningrum, Nia Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title | Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title_full | Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title_fullStr | Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title_full_unstemmed | Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title_short | Colorimetric Paper-Based Dual Indicator Label for Real-Time Monitoring of Fish Freshness |
title_sort | colorimetric paper-based dual indicator label for real-time monitoring of fish freshness |
topic | Original Scientific Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9901331/ https://www.ncbi.nlm.nih.gov/pubmed/36816881 http://dx.doi.org/10.17113/ftb.60.04.22.7588 |
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