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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.creator Kilulya, Kessy
dc.creator Mamba, Bhekie B.
dc.creator Ngila, Jane C.
dc.creator Bush, Tamara
dc.creator Msagati, Titus A. M.
dc.date 2016-07-18T18:06:12Z
dc.date 2016-07-18T18:06:12Z
dc.date 2014-12
dc.date.accessioned 2018-03-27T08:54:55Z
dc.date.available 2018-03-27T08:54:55Z
dc.identifier Kilulya, 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.
dc.identifier http://hdl.handle.net/20.500.11810/3259
dc.identifier.uri http://hdl.handle.net/20.500.11810/3259
dc.description Full text can be accessed at http://www.npprj.se/html/np-viewarticleabstract.asp?m=10066&mp=755
dc.description Dissolving 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.
dc.language en
dc.subject Chemometric methods
dc.subject Dissolving pulp
dc.subject Lipophilic extractives
dc.subject Partial Least Squares (PLS)
dc.title Evaluation of the influence of lipophilic extractive residues on dissolving pulp quality parameters by partial least squares method of chemometrics
dc.type Journal Article


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