Modelos ridge em planejamentos de misturas: uma aplicação na extração da polpa de pequi Ridge models in mixture planning: an application in the extraction of pequi pulp

Mixture Models can be used in experimental situations involving areas related to food science and chemistry. Some problems of a statistical nature can be found, such as effects of multicollinearity that result in uncertainty in the optimization of a dependent variable. This study proposes the applic...

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Bibliographic Details
Published in:Química nova 2013-01, Vol.36 (1), p.159-164
Main Authors: Tania Miranda Nepomucena, Augusto Maciel da Silva, Marcelo Angelo Cirillo
Format: Article
Language:English
Subjects:
Kronecker model
mixtures
Ridge analysis
Online Access:Get full text
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Summary:Mixture Models can be used in experimental situations involving areas related to food science and chemistry. Some problems of a statistical nature can be found, such as effects of multicollinearity that result in uncertainty in the optimization of a dependent variable. This study proposes the application of the ridge model adapted for mixture planning considering the Kronecker (K-model) and Scheffe (S-Model) methods applied to response surfaces. The method determined the proportions of hexane, acetone and alcohol proportions that resulted in the maximum response of percentage of extracted pequi (Caryocar brasiliense) pulp oil.
ISSN:0100-4042
1678-7064