Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326194
Type: Artigo
Title: Analysis Of Bee Pollen Constituents From Different Brazilian Regions: Quantification By Nir Spectroscopy And Pls Regression
Author: Costa
Maria Cristina A.; Morgano
Marcelo A.; Ferreira
Marcia Miguel C.; Milani
Raquel F.
Abstract: In the present work partial least square regression (PLS) models were built for quantification of the major components of 154 Brazilian bee pollen samples. Bee pollen has nutritive and therapeutic properties that make it attractive for human health. However, studies on the nutrient and bioactive compound composition of this product are needed, as well as the verification of the presence of contaminants that are harmful to health. The conventional analysis methods are costly and time-consuming, while near infrared spectroscopy (NIR) associated to PLS regression allows a fast and non-costly quantification of the bee pollen components without samples pre-treatment. The calibration models exhibited the determination coefficients, R-2 > 0.94. The mean percent calibration error varied from 1.49 to 5.58%. For external validation, R-2 ranged from 0.89 to 0.98 among the six. The results indicated that some models are good for quantification, while others are qualified for screening calibration. (C) 2017 Elsevier Ltd. All rights reserved.
Subject: Chemometrics
Diffuse Reflectance
Protein
Fructose
Ash
Editor: Elsevier Science BV
Amsterdam
Rights: fechado
Identifier DOI: 10.1016/j.lwt.2017.02.003
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0023643817300920
Date Issue: 2017
Appears in Collections:Unicamp - Artigos e Outros Documentos

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