Sub-micro electrochemical recognition of carmoisine, sunset yellow, and tartrazine in fruit juices using P(β-CD/Arg)/CysA-AuNPs/AuE.

IF 8.5 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2023-02-15 Epub Date: 2022-10-03 DOI:10.1016/j.foodchem.2022.134501

Shaghayegh Ahmadi, Mohammad Hasanzadeh, Zahra Ghasempour

{"title":"Sub-micro electrochemical recognition of carmoisine, sunset yellow, and tartrazine in fruit juices using P(β-CD/Arg)/CysA-AuNPs/AuE.","authors":"Shaghayegh Ahmadi, Mohammad Hasanzadeh, Zahra Ghasempour","doi":"10.1016/j.foodchem.2022.134501","DOIUrl":null,"url":null,"abstract":"An electrochemical sensor was designed to identify food colorants in juices. A green polymeric nanocomposite (beta-cyclodextrin/arginine) decorated with gold nanoparticles-capped cysteamine was fabricated on the surface of gold electrodes. Field emission-SEM and energy-dispersive X-ray spectroscopy showed the morphology and the presence of all elements related to all stages of the electrode modification. For three azo dyes (carmoisine, sunset yellow, and tartrazine), the analytical linear range was 10-8 to 10-4 M, with a low limit of quantification of about 1 nM. The engineered chemosensor showed suitable selectivity for analyzing candidate dyes in the presence of interfering agents. According to the scan rate results, the mass transport was controlled by diffusion, and the reaction on the chemosensor was electrochemically quasi-reversible. The results for different fruit juices confirmed this method's high potential application in detecting artificial color adulteration in food products.","PeriodicalId":318,"journal":{"name":"Food Chemistry","volume":"402 ","pages":"134501"},"PeriodicalIF":8.5000,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Chemistry","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1016/j.foodchem.2022.134501","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/10/3 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 6

Abstract

An electrochemical sensor was designed to identify food colorants in juices. A green polymeric nanocomposite (beta-cyclodextrin/arginine) decorated with gold nanoparticles-capped cysteamine was fabricated on the surface of gold electrodes. Field emission-SEM and energy-dispersive X-ray spectroscopy showed the morphology and the presence of all elements related to all stages of the electrode modification. For three azo dyes (carmoisine, sunset yellow, and tartrazine), the analytical linear range was 10^-⁸ to 10^-⁴ M, with a low limit of quantification of about 1 nM. The engineered chemosensor showed suitable selectivity for analyzing candidate dyes in the presence of interfering agents. According to the scan rate results, the mass transport was controlled by diffusion, and the reaction on the chemosensor was electrochemically quasi-reversible. The results for different fruit juices confirmed this method's high potential application in detecting artificial color adulteration in food products.

查看原文本刊更多论文

用P(β-CD/Arg)/CysA-AuNPs/AuE亚微电化学识别果汁中的carmoisine、sunset yellow和酒石黄。

设计了一种电化学传感器，用于检测果汁中的食用色素。在金电极表面制备了一种以半胱胺包裹金纳米粒子修饰的绿色聚合物纳米复合材料(β -环糊精/精氨酸)。场发射扫描电镜和能量色散x射线光谱显示了与电极修饰各阶段相关的所有元素的形态和存在。对于三种偶氮染料(卡莫辛、日落黄和酒黄石)，分析线性范围为10-8 ~ 10-4 M，定量下限约为1 nM。该化学传感器对存在干扰物的候选染料具有良好的选择性。扫描速率结果表明，质量传递受扩散控制，化学传感器上的反应是电化学准可逆的。对不同果汁的检测结果证实了该方法在食品中人工色素掺假检测中的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.