Biogenic amines- and sulfides-responsive gold nanoparticles for real-time visual detection of raw meat, fish, crustaceans, and preserved meat.
Food Chem
; 311: 125908, 2020 May 01.
Article
em En
| MEDLINE
| ID: mdl-31753679
ABSTRACT
A colorimetric probe based on gold nanoparticles (AuNPs) which is sensitive to two important volatile biogenic markers, i.e., dimethyl sulfide and histamine, is developed to monitor the spoilage of raw meat, fish, crustaceans, and preserved meat. The colorimetric detection is attributed to the transformation of the non-aggregated form of AuNPs to its aggregated form upon binding of the biomarkers. The AuNPs enable the detection of dimethyl sulfide and histamine at limits of 0.5 and 0.035 µg/mL, respectively. Furthermore, the probe exhibits excellent selectivity for those markers in the presence of other volatiles commonly generated by spoiled real meat and seafood. A sequential and positive causative relationship is exhibited among the storage period, the total bacteria count, the DMS evolved, and the chemosensing signal generated. Thus, this probe serves as a nondestructive and cost-effective detector for the real-time monitoring of meat spoilage.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sulfetos
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Aminas Biogênicas
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Colorimetria
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Nanopartículas Metálicas
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Ouro
/
Carne
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article