A rapid and sensitive method for the evaluation of cereal grains in bioethanol production using near infrared reflectance spectroscopy

Ferdinand Pohl; Thomas Senn

doi:10.1016/j.biortech.2010.10.058

A rapid and sensitive method for the evaluation of cereal grains in bioethanol production using near infrared reflectance spectroscopy

Bioresour Technol. 2011 Feb;102(3):2834-41. doi: 10.1016/j.biortech.2010.10.058. Epub 2010 Oct 20.

Authors

Ferdinand Pohl¹, Thomas Senn

Affiliation

¹ University of Hohenheim, Institute of Food Science and Biotechnology, Department of Fermentation Technology, Stuttgart, Germany. f-pohl@uni-hohenheim.de

PMID: 21071215
DOI: 10.1016/j.biortech.2010.10.058

Abstract

The potential of near infrared spectroscopy (NIRS) for determining fermentable substance and also ethanol yield in wheat, rye and triticale grains as a feedstock for fuel ethanol production was investigated. The total sample set contained 480 samples of 10 types of wheat, 24 types of triticale and 6 types of rye, which were grown on 10 locations in Germany from 2006 to 2008. Samples were scanned by NIRS as whole or ground grains, and their reference values regressed against different spectral transformations by partial least squares regression (PLS-1). Ground grains were scanned on a dispersive NIR-Spectrometer. Whole grains were scanned on a diode array NIR-Spectrometer. Principal Component Analysis (PCA) revealed that samples could be classified by crop season, growth location and species. It is shown that near infrared spectroscopy is an appropriate and useful tool for prediction of biofuel yield for both industry and research.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Biofuels / microbiology*
Edible Grain / chemistry*
Edible Grain / microbiology*
Ethanol / metabolism*
Materials Testing / methods
Saccharomyces cerevisiae / metabolism*
Spectroscopy, Near-Infrared / methods*

Substances

Biofuels
Ethanol