A fluorescence "turn-on" sensor for ascorbic acid in fruit juice and beverage based on ascorbate oxidase-like activity of citric acid-derived carbon dots.
Ascorbate oxidase
Ascorbic acid
Carbon dots
Food assays
Journal
Food chemistry
ISSN: 1873-7072
Titre abrégé: Food Chem
Pays: England
ID NLM: 7702639
Informations de publication
Date de publication:
30 Mar 2024
30 Mar 2024
Historique:
received:
06
09
2023
revised:
27
10
2023
accepted:
01
11
2023
medline:
22
11
2023
pubmed:
18
11
2023
entrez:
17
11
2023
Statut:
ppublish
Résumé
Citric acid-derived carbon dots (CA-CDs) without any modifications were found to have the ascorbate oxidase (AAO)-like activity. The CA-CDs have high affinity for ascorbic acid (AA), which is similar to natural AAO. The robustness of CA-CDs is greater than that of AAO. Based on the AAO mimetic activity of CA-CDs, a sensitive turn-on mode and natural enzyme-free fluorescence detection method has been developed for AA in some fruit juice and beverage samples with satisfied recoveries. This study provides CDs-based AAO mimetic nanozymes to replace the expensive natural enzymes or heavy metal-based nanozymes, which will show great potential in biological and food assays.
Identifiants
pubmed: 37976784
pii: S0308-8146(23)02546-3
doi: 10.1016/j.foodchem.2023.137928
pii:
doi:
Substances chimiques
Ascorbic Acid
PQ6CK8PD0R
Ascorbate Oxidase
EC 1.10.3.3
Carbon
7440-44-0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
137928Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.