{"title":"用于现场快速监测 E120 食品添加剂的简单通用电化学测定法","authors":"","doi":"10.1016/j.jfca.2024.106709","DOIUrl":null,"url":null,"abstract":"<div><p>A cost-effective electrochemical method was developed to rapidly monitor carminic acid (E120 food additive) levels. This assay simplifies the process by directly applying 50 μL of liquid sample onto a commercially available screen-printed voltammetric sensor. The subsequent anodic oxidation specifically targets the carminic acid within the complex matrix. To achieve maximum selectivity with regard to the variable composition of common beverages, the peak area current response was calibrated within a linear range 0.01–50 mg per 100 mL<sup>−1</sup> of carminic acid, with a sensitivity of 2.232 μA V mg<sup>−1</sup> mL, and a detection limit of 4 × 10<sup>−3</sup> mg per 100 mL. A satisfactory precision (relative standard deviation less than 4.5 %) has been found with a single use of five sensors. Practical applicability of the developed screening electrochemical assay in the food safety control was successfully verified in analysis of sweet candies, soft beverages, and energy drinks.</p></div>","PeriodicalId":15867,"journal":{"name":"Journal of Food Composition and Analysis","volume":null,"pages":null},"PeriodicalIF":4.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A simple and universal electrochemical assay for rapid field monitoring of E120 food additive\",\"authors\":\"\",\"doi\":\"10.1016/j.jfca.2024.106709\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A cost-effective electrochemical method was developed to rapidly monitor carminic acid (E120 food additive) levels. This assay simplifies the process by directly applying 50 μL of liquid sample onto a commercially available screen-printed voltammetric sensor. The subsequent anodic oxidation specifically targets the carminic acid within the complex matrix. To achieve maximum selectivity with regard to the variable composition of common beverages, the peak area current response was calibrated within a linear range 0.01–50 mg per 100 mL<sup>−1</sup> of carminic acid, with a sensitivity of 2.232 μA V mg<sup>−1</sup> mL, and a detection limit of 4 × 10<sup>−3</sup> mg per 100 mL. A satisfactory precision (relative standard deviation less than 4.5 %) has been found with a single use of five sensors. Practical applicability of the developed screening electrochemical assay in the food safety control was successfully verified in analysis of sweet candies, soft beverages, and energy drinks.</p></div>\",\"PeriodicalId\":15867,\"journal\":{\"name\":\"Journal of Food Composition and Analysis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.0000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Food Composition and Analysis\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0889157524007439\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Food Composition and Analysis","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0889157524007439","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
A simple and universal electrochemical assay for rapid field monitoring of E120 food additive
A cost-effective electrochemical method was developed to rapidly monitor carminic acid (E120 food additive) levels. This assay simplifies the process by directly applying 50 μL of liquid sample onto a commercially available screen-printed voltammetric sensor. The subsequent anodic oxidation specifically targets the carminic acid within the complex matrix. To achieve maximum selectivity with regard to the variable composition of common beverages, the peak area current response was calibrated within a linear range 0.01–50 mg per 100 mL−1 of carminic acid, with a sensitivity of 2.232 μA V mg−1 mL, and a detection limit of 4 × 10−3 mg per 100 mL. A satisfactory precision (relative standard deviation less than 4.5 %) has been found with a single use of five sensors. Practical applicability of the developed screening electrochemical assay in the food safety control was successfully verified in analysis of sweet candies, soft beverages, and energy drinks.
期刊介绍：
The Journal of Food Composition and Analysis publishes manuscripts on scientific aspects of data on the chemical composition of human foods, with particular emphasis on actual data on composition of foods; analytical methods; studies on the manipulation, storage, distribution and use of food composition data; and studies on the statistics, use and distribution of such data and data systems. The Journal''s basis is nutrient composition, with increasing emphasis on bioactive non-nutrient and anti-nutrient components. Papers must provide sufficient description of the food samples, analytical methods, quality control procedures and statistical treatments of the data to permit the end users of the food composition data to evaluate the appropriateness of such data in their projects.
The Journal does not publish papers on: microbiological compounds; sensory quality; aromatics/volatiles in food and wine; essential oils; organoleptic characteristics of food; physical properties; or clinical papers and pharmacology-related papers.
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