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DOI: 10.5593/SGEM2016/HB63/S08.031

EFFECT OF PENICILLIUM VERRUCULOSUM ENDOGLUCANASE TREATMENT ON THE NEVER-DRIED HARDWOOD KRAFT PULP BEATABILITY AND PROPERTIES

K. Terentyev, M. Holmova, E. Novozhilov, Y. Kazakov, A. Rozhkova
Friday 11 November 2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, SGEM Vienna GREEN Extended Scientific Sessions, www.sgemviennagreen.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-79-7 / ISSN 1314-2704, 2 - 5 November, 2016, Book 6 Vol. 3, 239-246pp, DOI: 10.5593/SGEM2016/HB63/S08.031

ABSTRACT
The article focuses on investigation of the cellulase treatment effect on the reduction of energy consumption and physical strength of bleached hardwood kraft pulp. Penicillium verruculosum enzyme preparation with the major endoglucanase activity was used for fibre modification of industrially produced never-dried pulp. Enzyme dosages varied in the range 0,001…0,01 FPU/g o.d. pulp. Physical properties of the handsheets were modified by enzymatic treatment before Jocro mill refining. The effect of different enzyme dosages on paper internal bond strength, zero-span breaking length, breaking length and burst index of paper were investigated. It was observed that the higher enzyme dosage the more significant effect on the pulp refining process. The treatment with 0,01 FPU/g enzyme dosage reduced energy consumption for beating (measured as Schopper-Riegler degree) up to 23 % at the same refining process duration. The maximum endoglucanase dosage for the treatment decreased zero-span breaking length (by up to 15 %) and slightly effected on the paper breaking length. The parameter of paper internal bonding strength was increased after using high enzyme dosage treatment. Burst index was increased using not more than 0,005 FPU/g pulp enzyme dosage.

Keywords: hardwood pulp, enzyme, refining, fiber modification

PAPER DOI: 10.5593/SGEM2016/HB63/S08.031, EFFECT OF PENICILLIUM VERRUCULOSUM ENDOGLUCANASE TREATMENT ON THE NEVER-DRIED HARDWOOD KRAFT PULP BEATABILITY AND PROPERTIES

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