Implementation of a robust method for quality inspection control of artisanal minas cheese. A multivariate metrological approach

Química Nova

Botelho, Bruno G.¹  Instituto Mineiro de Agropecuária, Contagem, Brasil¹  Sena, Marcelo M.¹  Universidade Federal de Minas Gerais, Belo Horizonte, Brasil¹  Mendes, Bruna A. P.¹ 

关键词: quality control;    NIRS;    multivariate metrology.;   

DOI  :  10.1590/S0100-40422013000900023

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This study developed and validated a method for moisture determination in artisanal Minas cheese, using near-infrared spectroscopy and partial-least-squares. The model robustness was assured by broad sample diversity, real conditions of routine analysis, variable selection, outlier detection and analytical validation. The model was built from 28.5-55.5% w/w, with a root-mean-square–error-of-prediction of 1.6%. After its adoption, the method stability was confirmed over a period of two years through the development of a control chart. Besides this specific method, the present study sought to provide an example multivariate metrological methodology with potential for application in several areas, including new aspects, such as more stringent evaluation of the linearity of multivariate methods.

【 授权许可】

Unknown