Sensory profile of gorgonzola via generalized procrustes analysis using R
Bol. Centro Pesqui. Process. Aliment
;
26(1): 151-159, jan.-jun. 2008. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-525706
ABSTRACT
Sensory data analysis in Brazil used to be performed through univariate Analysis of Variance (ANOVAs) hence one looses valuable intra variable information. To solve this porblem one may use multivariate tools. Generalized Procrustes Analysis (GPA), often performed in expensive software, is a multivariate exploratory data analysis method that aims:
i) remove scores bias; ii) resume the assessors agreement, usually, on a plant; iii) show the objects relative differences. An application on sensory profile of Gorgonzola cheese is porvided. Data was analyzed by uni, multivariate ANOVAs and GPA, on the free statistical software R, ANOVAs detected significant differences among cheeses and GPA provided the consensus configuration displaying their relative differences and sensory evolution. Assesors preferred cheeses with a higher fat content. GPA can be reasonably performed by free software, say R, and should be utilized like a complement of Analysis of Variance.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Qualidade dos Alimentos
/
Queijo
/
Análise de Alimentos
Idioma:
Inglês
Revista:
Bol. Centro Pesqui. Process. Aliment
Assunto da revista:
Ciências da Nutrição
/
Nutricionistas
Ano de publicação:
2008
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Empresa Brasileira de Pesquisa Agropecuária/BR
/
Universidade Federal de Lavras/BR
Similares
MEDLINE
...
LILACS
LIS