Effect of enzymatic treatment on filterability of PGW-concentrate

Raija Lantto, Maria Alppisara, Hannu Manner, Johanna Buchert

Research output: Contribution to journalArticleScientific

2 Citations (Scopus)

Abstract

Suitability of enzymes hydrolysing galactoglucomannan, glucan, xylan and pectin was tested for treating concentrate from ultrafiltration of circulation water obtained from a Finnish ground wood mill. The improvement of filterability after the enzymatic treatments was evaluated by secondary ultrafiltration. Filterability of the PGW-concentrate improved significantly by mannanase and cellulase treatments indicating that galactoglucomannan and glucan were the main carbohydrates impeding filtration. Since cellulase also loosened the structure of the membrane material used in the filtration experiments, cellulase containing enzyme products cannot be applied in an industrial filtration process when regenerated cellulose is used as membrane material.

Original languageEnglish
Pages (from-to)154-157
Number of pages4
JournalPaperi ja puu
Volume85
Issue number3
Publication statusPublished - 2003
MoE publication typeB1 Article in a scientific magazine

Fingerprint

filterability
Cellulase
enzymatic treatment
endo-1,4-beta-glucanase
Glucans
concentrates
Ultrafiltration
glucans
ultrafiltration
Enzymes
enzyme
membrane
Membranes
beta-mannosidase
Xylans
xylan
Carbohydrates
enzymes
Cellulose
pectins

Keywords

  • enzymes
  • mannanase
  • cellulase
  • ultrafiltration
  • carbohydrate
  • galactoglucomannan

Cite this

Lantto, R., Alppisara, M., Manner, H., & Buchert, J. (2003). Effect of enzymatic treatment on filterability of PGW-concentrate. Paperi ja puu, 85(3), 154-157.
Lantto, Raija ; Alppisara, Maria ; Manner, Hannu ; Buchert, Johanna. / Effect of enzymatic treatment on filterability of PGW-concentrate. In: Paperi ja puu. 2003 ; Vol. 85, No. 3. pp. 154-157.
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Lantto, R, Alppisara, M, Manner, H & Buchert, J 2003, 'Effect of enzymatic treatment on filterability of PGW-concentrate', Paperi ja puu, vol. 85, no. 3, pp. 154-157.

Effect of enzymatic treatment on filterability of PGW-concentrate. / Lantto, Raija; Alppisara, Maria; Manner, Hannu; Buchert, Johanna.

In: Paperi ja puu, Vol. 85, No. 3, 2003, p. 154-157.

Research output: Contribution to journalArticleScientific

TY - JOUR

T1 - Effect of enzymatic treatment on filterability of PGW-concentrate

AU - Lantto, Raija

AU - Alppisara, Maria

AU - Manner, Hannu

AU - Buchert, Johanna

PY - 2003

Y1 - 2003

N2 - Suitability of enzymes hydrolysing galactoglucomannan, glucan, xylan and pectin was tested for treating concentrate from ultrafiltration of circulation water obtained from a Finnish ground wood mill. The improvement of filterability after the enzymatic treatments was evaluated by secondary ultrafiltration. Filterability of the PGW-concentrate improved significantly by mannanase and cellulase treatments indicating that galactoglucomannan and glucan were the main carbohydrates impeding filtration. Since cellulase also loosened the structure of the membrane material used in the filtration experiments, cellulase containing enzyme products cannot be applied in an industrial filtration process when regenerated cellulose is used as membrane material.

AB - Suitability of enzymes hydrolysing galactoglucomannan, glucan, xylan and pectin was tested for treating concentrate from ultrafiltration of circulation water obtained from a Finnish ground wood mill. The improvement of filterability after the enzymatic treatments was evaluated by secondary ultrafiltration. Filterability of the PGW-concentrate improved significantly by mannanase and cellulase treatments indicating that galactoglucomannan and glucan were the main carbohydrates impeding filtration. Since cellulase also loosened the structure of the membrane material used in the filtration experiments, cellulase containing enzyme products cannot be applied in an industrial filtration process when regenerated cellulose is used as membrane material.

KW - enzymes

KW - mannanase

KW - cellulase

KW - ultrafiltration

KW - carbohydrate

KW - galactoglucomannan

M3 - Article

VL - 85

SP - 154

EP - 157

JO - Paperi ja puu

JF - Paperi ja puu

SN - 0031-1243

IS - 3

ER -

Lantto R, Alppisara M, Manner H, Buchert J. Effect of enzymatic treatment on filterability of PGW-concentrate. Paperi ja puu. 2003;85(3):154-157.