Classification of kimchi using laser-induced breakdown spectroscopy and k-nearest neighbors modeling

被引：5

作者：

Kumar, Sandeep ^{[1
]}

Choi, Hanbeom ^{[3
]}

Chae, Heesu ^{[3
]}

Kim, Hyang ^{[1
]}

Nam, Sang-Ho ^{[1
,2
,3
]}

Kim, Hojin ^{[4
]}

Kim, Haejin ^{[4
]}

Han, Song-Hee ^{[5
]}

Lee, Yonghoon ^{[1
,2
,3
]}

机构：

[1] Mokpo Natl Univ, Plasma Spect Anal Ctr, Muan 58554, Jeonnam, South Korea

[2] Dept Energy & Chem Engn, Muan 58554, Jeonnam, South Korea

[3] Mokpo Natl Univ, Dept Chem, Muan 58554, Jeonnam, South Korea

[4] Natl Agr Prod Qual Management Serv, Gimcheon 39660, Gyeongbuk, South Korea

[5] Mokpo Natl Maritime Univ, Div Nav Sci, Mokpo 58628, Jeonnam, South Korea

来源：

JOURNAL OF FOOD COMPOSITION AND ANALYSIS | 2024年 / 136卷

基金：

新加坡国家研究基金会;

关键词：

Kimchi; Laser-induced breakdown spectroscopy; k -nearest neighbors; Food classification; IDENTIFICATION; FERMENTATION; ABLATION; LIBS; MG;

D O I：

10.1016/j.jfca.2024.106742

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This study introduces a novel application of Laser-Induced Breakdown Spectroscopy (LIBS) combined with k-nearest neighbors (KNN) modeling to classify the origin of kimchi. Using the spectral intensities of Mg II at 279 nm and K I at 766 nm, we achieved a classification accuracy of 92.8 %. This method effectively leverages regional differences in salt supply chains impacting kimchi's elemental composition. The innovation lies in applying the interclass distance method for variable selection in LIBS analysis, enhancing the interpretability and accuracy of food classification. Compared to traditional elemental analysis techniques, LIBS offers a practical, cost-effective solution for rapid field analysis with minimal sample preparation. This study not only demonstrates the potential of LIBS for food authenticity but also provides insights for developing accurate methods for detecting Mg and K in various food products, contributing to advancements in food quality control.

引用

页数：9

共 53 条

[1] Laser-Induced Breakdown Spectroscopy (LIBS) Quality Control and Origin Identification of Handmade Manufactured Cigars [J].