Direct Determination of Sugar Cane Quality Parameters by X‑ray Spectrometry and Multivariate Analysis

Current methods for quality control of sugar cane are performed in extracted juice using several methodologies, often requiring appreciable time and chemicals (eventually toxic), making the methods not green and expensive. The present study proposes the use of X-ray spectrometry together with chemom...

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Bibliographic Details
Published inJournal of agricultural and food chemistry Vol. 60; no. 43; pp. 10755 - 10761
Main Authors Melquiades, F. L, Bortoleto, G. G, Marchiori, L. F. S, Bueno, M. I. M. S
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 31.10.2012
Subjects
Biological and medical sciences
Carbohydrates - analysis
Food industries
Fundamental and applied biological sciences. Psychology
Multivariate Analysis
Plant Leaves - chemistry
Plant Stems - chemistry
Quality Control
Saccharum - chemistry
Spectrometry, X-Ray Emission - methods
Sucrose - analysis
Sugar industries
multivariate calibration
fiber
portable X-ray fluorescence
sugar cane
sucrose
PLS
Sucrose
Fluorescence
X ray spectrometry
Cane sugar
X ray
Calibration
X ray analysis
Quality
Carbohydrate
Sugar cane
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Summary:Current methods for quality control of sugar cane are performed in extracted juice using several methodologies, often requiring appreciable time and chemicals (eventually toxic), making the methods not green and expensive. The present study proposes the use of X-ray spectrometry together with chemometric methods as an innovative and alternative technique for determining sugar cane quality parameters, specifically sucrose concentration, POL, and fiber content. Measurements in stem, leaf, and juice were performed, and those applied directly in stem provided the best results. Prediction models for sugar cane stem determinations with a single 60 s irradiation using portable X-ray fluorescence equipment allows estimating the % sucrose, % fiber, and POL simultaneously. Average relative deviations in the prediction step of around 8% are acceptable if considering that field measurements were done. These results may indicate the best period to cut a particular crop as well as for evaluating the quality of sugar cane for the sugar and alcohol industries.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf302471b