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Hindawi, Journal of Spectroscopy, (2015), p. 1-6, 2015

DOI: 10.1155/2015/104609

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NIRS Characterization of Paper Pulps to Predict Kappa Number

Journal article published in 2014 by Ana Moral ORCID, Elena Cabeza, Roberto Aguado ORCID, Antonio Tijero ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Rice is one of the most abundant food crops in the world and its straw stands as an important source of fibres both from an economic and an environmental point of view. Pulp characterization is of special relevance in works involving alternative raw materials, since pulp properties are closely linked to the quality of the final product. One of the analytical techniques that can be used in pulp characterization is near-infrared spectroscopy (NIRS). The use of NIRS has economic and technical advantages over conventional techniques. This paper aims to discuss the convenience of using NIRS to predict Kappa number in rice straw pulps produced under different conditions. We found that the resulting Kappa number can be acceptably estimated by NIRS, as the errors obtained with that method are similar to those found for other techniques.