Development of a colorimetric sensor array for squid spoilage assessment
| Autor: | Isabel Fernández-Segovia, José M. Barat, Ana Fuentes, Patricia Zaragozá, María Ruiz-Rico, Ramón Martínez-Máñez, José-Luis Vivancos, José V. Ros-Lis |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
TECNOLOGIA DE ALIMENTOS Food Handling Food spoilage Colony Count Microbial Analytical chemistry Colorimetric sensor array Cold storage Biosensing Techniques Optoelectronic nose Analytical Chemistry Colorimetric array chemistry.chemical_compound QUIMICA ORGANICA Food Preservation biology.animal Animals PROYECTOS DE INGENIERIA Squid Chromatography Spoilage biology Silica gel QUIMICA INORGANICA Decapodiformes General Medicine chemistry Colorimetry Food Analysis Food Science |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 0308-8146 |
| DOI: | 10.1016/j.foodchem.2014.11.156 |
| Popis: | [EN] The aim of this work was to develop and evaluate a rapid, easy-to-use optoelectronic system for the shelf-life assessment of squid in cold storage. For this purpose, an optoelectronic nose was designed, which consisted of an array containing six sensing materials prepared by combining different dyes and two inorganic supports (aluminium oxide and silica gel). Samples were packaged with the colorimetric array and kept in cold storage for 12 days. Squid spoilage was monitored simultaneously by the colorimetric array and by the physico-chemical and microbial analyses during storage. Samples exceeded the acceptability limits for microbial counts on the third day. PCA analysis carried out with CIELab showed that the colorimetric array was able to discriminate between fresh squid fit for consumption and spoiled squid. The statistical models obtained by PLS, with the optoelectronic nose, successfully predicted CO2 and O-2 content in the headspace as well as microbial growth. (c) 2014 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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