Homogeneity and stability assessment of a candidate to pumpkin seed flour reference material by means of computer vision based chemometrics assisted approach

被引：3

作者：

de Almeida Azevedo, Ravena Souza ^{[1
]}

Santos Neto, Joao Honorato ^{[1
]}

Dos Santos, Liz Oliveira ^{[1
,2
]}

Gomes, Adriano de Araujo ^{[3
]}

Santana, Debora de Andrade ^{[4
]}

Pinto Dos Santos, Ana Maria ^{[1
]}

机构：

[1] Univ Fed Bahia, Inst Quim, Grp Pesquisa Quim & Quimiometria, Campus Ondina, BR-40170270 Salvador, BA, Brazil

[2] Univ Fed Reconcavo Bahia, Ctr Ciencia & Tecnol Energia & Sustentabilidade, BR-44085132 Feira De Santana, BA, Brazil

[3] Univ Fed Rio Grande do Sul, Inst Chem, Bento Goncalves Ave 9500, BR-91501970 Porto Alegre, RS, Brazil

[4] Univ Estado Bahia, Dept Ciencias Exatas & Terra, Campus 1, BR-45700000 Salvador, BA, Brazil

来源：

FOOD CHEMISTRY | 2022年 / 368卷

关键词：

Digital image; Reference material; Homogeneity; Stability; Continuous-level moving block; LABORATORY REFERENCE MATERIAL;

D O I：

10.1016/j.foodchem.2021.130842

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This study proposes a preliminary assessment of the homogeneity and stability through digital image acquisition of a candidate for mechanically processed pumpkin seed meal reference material, exploring the concepts of homogeneity curve and the analysis of texture characteristics by Continuous-Level Moving Block through Robust Principal Component Analysis. This innovative methodology allowed us to examine the percentage of homogeneity in a set of samples, revealing an average of 41% with only one outlier in relation to the entire sample, indicating low homogeneity. In the stability study carried out after storing samples for 12 months at different temperatures, 83% of the samples were considered regular and 17% were outlier, which means that most of them were considered stable. Therefore, this methodology is useful for screening samples for homogeneity, by textural analysis, and detected non-homogeneity can be corrected in advance for quantification by standard protocols.

引用

页数：7