Rapid determination for tyrosine isomers in food based on N-acetyl-L-cysteine/Upconversion nanomaterials target-induced quench by chiral Electrochemiluminescence sensor.
Food Chem
; 463(Pt 2): 141169, 2024 Sep 06.
Article
in En
| MEDLINE
| ID: mdl-39276545
ABSTRACT
Rapid determination of amino acid isomer is very important for the evaluation of the amino acid nutrition in different foods, so a fast and sensitive electrochemiluminescence (ECL) sensor was innovatively fabricated for the determination of tyrosine isomers in foods based on N-Acetyl-L-cysteine/upconversion nanomaterials possessed a good particular selectivity to L-tyrosine. Under the optimal conditions, for L-tyrosine, the limit of detection (LOD) of the sensor for L-tyrosine was 2.87 × 10-6 M, detection range of 5.5 × 10-5-5.5 × 10-3 M, for D-tyrosine, LOD was 2.56 × 10-5 M, detection range was from 5.5 × 10-4 to 5.5 × 10-3 M. The developed chiral sensor was used to determinate the tyrosine isomers in foods successfully, which provided a convenient method to quickly evaluate the nutritional value of amino acids in food.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Food Chem
/
Food chem
/
Food chemistry
Year:
2024
Document type:
Article
Country of publication:
United kingdom