| Title: | Carbonyl flavor compound-targeted colorimetric sensor array based on silver nitrate and o-phenylenediamine derivatives for the discrimination of Chinese Baijiu |
| Author(s): | Wu M; Chen H; Fan Y; Wang S; Hu Y; Liu J; Shen C; Zhou C; Fu H; She Y; |
| Address: | "College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China. The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, College of Pharmacy, South-Central University for Nationalities, Wuhan 430074, PR China. National Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Co. Ltd., Luzhou 646000, PR China. The Modernization Engineering Technology Research Center of Ethnic Minority Medicine of Hubei Province, College of Pharmacy, South-Central University for Nationalities, Wuhan 430074, PR China. Electronic address: fuhaiyan@mail.scuec.edu.cn. College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China. Electronic address: sheyb@zjut.edu.cn" |
| DOI: | 10.1016/j.foodchem.2021.131216 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Baijiu is a distilled liquor of great importance in the food industry. Various aroma types, brands, and grades of Baijiu have filled the market; thus, discrimination for quality control is required. Herein, we constructed a novel colorimetric sensor array based on the redox reaction between silver nitrate and o-phenylenediamine or its derivatives for the discrimination of carbonyl flavor compounds (CFCs) and Baijius. The specific colored products were changed by CFCs depending on the influence of silver nanoparticle aggregation and chemical reactions. The array was used to qualitatively and quantitatively identify 21 CFCs with fast response (<14 min), wide linear range (0.025-25 mmol/L), and low detection limits (<60 mumol/L, 29 nmol/L for carboxylic acids). Finally, the array was successfully applied to the discrimination of 56 Baijius. The method proposed in this study is simple, fast, reliable, and has good application potential for the visual determination of Chinese Baijiu" |
| Keywords: | China Colorimetry *Metal Nanoparticles Phenylenediamines Silver Silver Nitrate *Volatile Organic Compounds Baijiu Carbonyl flavor compounds Colorimetric sensor array Discrimination O-phenylenediamine; |
| Notes: | "MedlineWu, Meixia Chen, Hengye Fan, Yao Wang, Songtao Hu, Ying Liu, Jian Shen, Caihong Zhou, Chunsong Fu, Haiyan She, Yuanbin eng England 2021/10/13 Food Chem. 2022 Mar 15; 372:131216. doi: 10.1016/j.foodchem.2021.131216. Epub 2021 Sep 22" |
