Authors: Pedro, Andre M.K.¹; Ferreira, Marcia M.C.²

Source: Applied Spectroscopy, Volume 63, Issue 11, Pages 292A-318A and 1197-1314, (November 2009) , pp. 1308-1314(7)

Publisher: Society for Applied Spectroscopy

Abstract:

In this work a procedure for determining the shelf-life of products by merging near-infrared (NIR) spectroscopy, multivariate techniques of data analysis, and kinetic theory is presented. This procedure allows information from several sources (sensory, physical chemical, and instrumental) to be merged via the multivariate accelerated shelf-life test (MASLT) algorithm. The MASLT is a multivariate approach that relies on soft modeling via an unfolding principal component analysis (u-PCA) and hard modeling, through the conventional kinetic theory, for determining the final shelf-life of products. The procedure was successfully applied to a consumer goods product (a body lotion), whose shelf-life was determined to be 3 years and 9 months, in accordance with results previously obtained using conventional analytical techniques and univariate methods of data analysis.

Keywords: STABILITY; FRAGRANCE; PRINCIPAL COMPONENT ANALYSIS; PCA; KINETICS; EMULSION; MULTIVARIATE; MULTIVARIATE ACCELERATED SHELF-LIFE TEST; MASLT

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370209789806830

Affiliations: 1: Unilever Category Technology Centre, Valinhos (SP) 13201-450 Brazil; State University of Campinas, Chemistry Institute, Physical Chemistry Department, Campinas (SP), 13083-970, Caixa Postal 6154, Brazil 2: State University of Campinas, Chemistry Institute, Physical Chemistry Department, Campinas (SP), 13083-970, Caixa Postal 6154, Brazil

Publication date: 2009-11-01

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