Fast detection of tryptamine in meat products with azide-functionalized covalent organic frameworks confined in molecularly imprinted polymers.

Autor: Xie C; Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 11 Fucheng Road, Beijing 100048, China., He J; Zhejiang Liziyuan Food Co., LTD., China., Wang Y; Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 11 Fucheng Road, Beijing 100048, China., Zhang D; Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 11 Fucheng Road, Beijing 100048, China. Electronic address: Zhangdainwei@btbu.edu.cn., Liu H; Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 11 Fucheng Road, Beijing 100048, China. Electronic address: liuhuilin@btbu.edu.cn., Sun B; Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, 11 Fucheng Road, Beijing 100048, China.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 Sep 15; Vol. 452, pp. 139527. Date of Electronic Publication: 2024 Apr 30.
DOI: 10.1016/j.foodchem.2024.139527
Abstrakt: Tryptamine is a biogenic amine that affects organoleptic quality through the generation of off-odours in foods. Herein, imine-based covalent organic frameworks (COFs) were synthesized via Schiff base reactions and postmodified with click chemistry to generate azide-functionalized COFs with tunable azide units on the walls. The combination of molecular imprinting with COFs enabled the specific recognition of the targets. The resulting optosensing system (azide-functionalized COFs@MIPs) was used as a sample-to-answer analyser for detecting tryptamine (detection time within 10 min). A linear relationship was observed for the fluorescence response to tryptamine concentrations in the range of 3-120 μg L -1 , with a limit of detection of 1.74 μg L -1 . The recoveries for spiked samples were satisfactory, with relative standard deviations <9.90%. The optosensing system is a potential tool for the quantitative detection of tryptamine in meat products because of its lower cost, shorter processing time, and simpler processing steps compared to conventional chromatographic techniques.
Competing Interests: Declaration of competing interest The authors declare no competing financial interest.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: