A Novel Indicator Based on Polyacrylamide Hydrogel and Bromocresol Green for Monitoring the Total Volatile Basic Nitrogen of Fish.
TVB-N
bromocresol green
colorimetric indicator
intelligent packaging
polyacrylamide hydrogel
Journal
Foods (Basel, Switzerland)
ISSN: 2304-8158
Titre abrégé: Foods
Pays: Switzerland
ID NLM: 101670569
Informations de publication
Date de publication:
30 Oct 2023
30 Oct 2023
Historique:
received:
06
10
2023
revised:
21
10
2023
accepted:
25
10
2023
medline:
14
11
2023
pubmed:
14
11
2023
entrez:
14
11
2023
Statut:
epublish
Résumé
An intelligent indicator was developed by immobilizing bromocresol green (BCG) within the polyacrylamide (PAAm) hydrogel matrix to monitor the total volatile basic nitrogen (TVB-N) content of fish. The FTIR analysis indicated that BCG was effectively incorporated into the PAAm through the formation of intermolecular hydrogen bonds. A thermogravimetric analysis (TGA) showed that the PAAm/BCG indicator had a mere 0.0074% acrylamide monomer residue, meanwhile, the addition of BCG improved the thermal stability of the indicator. In vapor tests with various concentrations of trimethylamine, the indicator performed similarly at both 4 °C and 25 °C. The total color difference values (Δ
Identifiants
pubmed: 37959082
pii: foods12213964
doi: 10.3390/foods12213964
pmc: PMC10650302
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : the National Key Research and Development Program under Grant
ID : 2019YFD0901705
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