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. 2018 Jan 11;8:547. doi: 10.1038/s41598-017-19033-y

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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A triangle study of human evaluation test, instrumental analysis (GC-MS) and olfactory receptor/CNT bioelectronic nose for exploring non-destructive sensing of seafood freshness. The sensory evaluation test was performed by 15 trained panelists focusing on appearance, flavor, taste, texture and acceptability of raw oyster. For the instrumental analysis, the gas samples from the headspace of vials containing oysters were injected to the GC-MS system. Using the bioelectronic nose, a specific odorant molecule, TMA generated in the oyster undergoing the deterioration process was selectively detected through its binding to the receptor protein peptide.