Evaluation of the influence of lipophilic extractive residues on dissolving pulp quality parameters by partial least squares method of chemometrics

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dc.contributor.authorKilulya, Kessy
dc.contributor.authorMamba, Bhekie B.
dc.contributor.authorNgila, Jane C.
dc.contributor.authorBush, Tamara
dc.contributor.authorMsagati, Titus A. M.
dc.date.accessioned2016-07-18T18:06:12Z
dc.date.available2016-07-18T18:06:12Z
dc.date.issued2014-12
dc.descriptionFull text can be accessed at http://www.npprj.se/html/np-viewarticleabstract.asp?m=10066&mp=755en_US
dc.description.abstractDissolving pulp samples collected from the various pulping stages of the acid-bisulphite process were analysed for the lipophilic extractive residues as well as their effects and influence on the quality parameters of dissolving pulp were evaluated. The results obtained using the partial least squares (PLS) regression model showed that sterols, fatty alcohol, saturated and unsaturated fatty acids significantly influenced/affected the viscosity, Kappa number and carbohydrates in the pulp. The PLS model clearly separated the analysed pulp in terms of the species of the raw materials and pulping stages. Furthermore, it was observed that lipophilic extractives are negatively correlated to the yield of α-cellulose. Sterols, fatty acids and alcohols negatively influenced glucose in pulp, while xylose was found to be positively correlated to these components. Generally, the components of lipophilic extractives that have a major influence on the quality parameters were found to be sterols and saturated fatty acids.en_US
dc.identifier.citationKilulya, K.F., Mamba, B.B., Ngila, C., Bush, T. and Msagati, T.A., 2015. Evaluation of the influence of lipophilic extractive residues on dissolving pulp quality parameters by partial least squares method of chemometrics. NORDIC PULP & PAPER RESEARCH JOURNAL, 30(3), pp.402-410.en_US
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3259
dc.language.isoenen_US
dc.subjectChemometric methodsen_US
dc.subjectDissolving pulpen_US
dc.subjectLipophilic extractivesen_US
dc.subjectPartial Least Squares (PLS)en_US
dc.titleEvaluation of the influence of lipophilic extractive residues on dissolving pulp quality parameters by partial least squares method of chemometricsen_US
dc.typeJournal Articleen_US
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