食品工业科技2024，Vol.45Issue(10)：254-262,9.DOI:10.13386/j.issn1002-0306.2023070018
基于银纳米三角片蚀刻机制区分不同产地浓香型白酒
Discrimination of Strong Aroma-type Baijiu of Different Origins Based on Ag Nanoprism Etching Mechanism
摘要
Abstract
Discriminating strong aroma-type Baijiu(SAB)of different origins was significant for product quality control and origin protection.In this study,a 4×3 sensor array was constructed based on the Ag nanoprism(AgNPR)etching mechanism,in which four AgNPRs varying in shape and size were used as sensing materials,and two metal ions and one oxide anion were used as oxidation etchants.With this array,colorimetric reaction was conducted on 41 representative SAB samples from Sichuan,Jianghuai and North China.The obtained colorimetric signal values were subjected to linear discriminant analysis(LDA).Furthermore,some samples of unknown origin were selected to perform external validation on the discrimination model.Based on the results of colorimetric reaction mechanism,the samples could promote the etching effect of AgNPRs,which might be related to various organic acids contained in Baijiu.Sample discrimination showed that single array produced a comparatively low effect on samples of different origins.The combination of three arrays significantly improved the discrimination effect,whose rate of origin discrimination was up to 99%for 41 samples,and was up to 98%for 15 unknown samples.With combined array,the discriminant rates of 21 samples from 5 brands in Sichuan and 13 samples from 3 brands in Jianghuai could reach 99%and 100%,respectively,while all the discriminant rates could reach 100%for different grades of products from various manufacturers in Sichuan with single array.Being simple and fast,the nanocolorimetric sensing method adopted in this study is not only applicable to product identification and anti-counterfeiting,but also be auxiliarily used for quality control in production process,laying a research foundation for intelligent quality monitoring of Baijiu.关键词
浓香型白酒/银纳米三角片/蚀刻机制/比色传感阵列/模式识别Key words
strong aroma-type Baijiu/Ag nanoprism/etching mechanism/colorimetric sensor array/pattern recognition分类
轻工纺织引用本文复制引用
贾俊杰,张宿义,许涛,马龙,黄张君,王松涛,佘远斌..基于银纳米三角片蚀刻机制区分不同产地浓香型白酒[J].食品工业科技,2024,45(10):254-262,9.基金项目
中国博士后科学基金资助项目(2022M721448) （2022M721448）
四川省中央引导地方科技发展专项项目:四川省固态酿造技术创新中心建设(2021ZYD0102). （2021ZYD0102）
