Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring

In a simple and instant procedure for detecting fish freshness, a hydrogel and hydrophilic pectin matrix membrane was used successfully as an optical pH sensor by immobilizing the chromoionophore ETH 5294 (CI), which is very selective and sensitive for the membrane. The Pe/CI optical pH sensor exhib...

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Autores principales: Hasanah, Uswatun, Setyowati, Mita, Efendi, Rustam, Muslem, Muslem, Md Sani, Nor Diyana, Safitri, Eka, Yook Heng, Lee, Idroes, Rinaldi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6627521/
https://www.ncbi.nlm.nih.gov/pubmed/31035464
http://dx.doi.org/10.3390/bios9020060
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author Hasanah, Uswatun
Setyowati, Mita
Efendi, Rustam
Muslem, Muslem
Md Sani, Nor Diyana
Safitri, Eka
Yook Heng, Lee
Idroes, Rinaldi
author_facet Hasanah, Uswatun
Setyowati, Mita
Efendi, Rustam
Muslem, Muslem
Md Sani, Nor Diyana
Safitri, Eka
Yook Heng, Lee
Idroes, Rinaldi
author_sort Hasanah, Uswatun
collection PubMed
description In a simple and instant procedure for detecting fish freshness, a hydrogel and hydrophilic pectin matrix membrane was used successfully as an optical pH sensor by immobilizing the chromoionophore ETH 5294 (CI), which is very selective and sensitive for the membrane. The Pe/CI optical pH sensor exhibited excellent linearity between pH 5 and pH 9, with a sensor response time of 5 min and reproducibility of 1.49% relative standard deviation (RSD). The sensor showed response stability for 15 days and a response reduction of 8.6%. The sensor’s capability was demonstrated by the detection of fish freshness for 17 days at 4 °C.
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spelling pubmed-66275212019-07-23 Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring Hasanah, Uswatun Setyowati, Mita Efendi, Rustam Muslem, Muslem Md Sani, Nor Diyana Safitri, Eka Yook Heng, Lee Idroes, Rinaldi Biosensors (Basel) Article In a simple and instant procedure for detecting fish freshness, a hydrogel and hydrophilic pectin matrix membrane was used successfully as an optical pH sensor by immobilizing the chromoionophore ETH 5294 (CI), which is very selective and sensitive for the membrane. The Pe/CI optical pH sensor exhibited excellent linearity between pH 5 and pH 9, with a sensor response time of 5 min and reproducibility of 1.49% relative standard deviation (RSD). The sensor showed response stability for 15 days and a response reduction of 8.6%. The sensor’s capability was demonstrated by the detection of fish freshness for 17 days at 4 °C. MDPI 2019-04-26 /pmc/articles/PMC6627521/ /pubmed/31035464 http://dx.doi.org/10.3390/bios9020060 Text en © 2019 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
Hasanah, Uswatun
Setyowati, Mita
Efendi, Rustam
Muslem, Muslem
Md Sani, Nor Diyana
Safitri, Eka
Yook Heng, Lee
Idroes, Rinaldi
Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title_full Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title_fullStr Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title_full_unstemmed Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title_short Preparation and Characterization of a Pectin Membrane-Based Optical pH Sensor for Fish Freshness Monitoring
title_sort preparation and characterization of a pectin membrane-based optical ph sensor for fish freshness monitoring
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6627521/
https://www.ncbi.nlm.nih.gov/pubmed/31035464
http://dx.doi.org/10.3390/bios9020060
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