Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Jorma Sundquist"'
Publikováno v:
Cellulose. 7:147-159
In order to obtain information about the crystallinity and polymorphs of cellulose, and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linters, viscose, and celluloses in different pulps were investigated
Publikováno v:
hfsg. 49:51-59
Birch wood chips, with or without peroxyacetic acid pretreatment, were subjected to steam explosion treatment at 160, 220 and 250°C for different periods of time to reach the same severity or P-factor values (1000, 15,000 and 96,000 min) at each tem
Publikováno v:
Viikari, L, Kantelinen, A, Sundquist, J & Linko, M 1994, ' Xylanases in bleaching : From an idea to the industry ', FEMS Microbiology Reviews, vol. 13, no. 2-3, pp. 335-350 . https://doi.org/10.1111/j.1574-6976.1994.tb00053.x
The utilization of hemicellulases in bleaching of kraft (sulphate) pulp is considered as one of the most important new large-scale industrial applications of enzymes. This is partly due to the great potential of an environmentally safe method. This m
Publikováno v:
Hortling, B, Forsskåhl, I, Janson, J, Sundquist, J & Viikari, L 1992, ' Investigations of fresh and biologically decayed birch ', Holzforschung, vol. 46, no. 1, pp. 9-19 . https://doi.org/10.1515/hfsg.1992.46.1.9
A naturally decayed birch stem was investigated in order to find thus also indirectly for the photo-chemical yellowing of mechanical pulps. The results are compared to those for fresh birch. The density of the decayed birch was one quarter that of th
Publikováno v:
Nordic Pulp & Paper Research Journal. 5:33-37
In order to obtain information about the crystallinity and polymorphs of cellulose and the occurrence of hemicelluloses in pulp fibers, wood cellulose, bacterial cellulose, cotton linter, viscose and celluloses in different pulps were investigated by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2baebd5dcf7cd75d17e81e5c1d65c6ce
https://doi.org/10.1533/9781845698546.121
https://doi.org/10.1533/9781845698546.121
Publikováno v:
Hortling, B, Korhonen, M, Buchert, J, Sundquist, J & Viikari, L 1994, ' The leachability of lignin from kraft pulps after xylanase treatment ', Holzforschung, vol. 48, no. 5, pp. 441-446 . https://doi.org/10.1515/hfsg.1994.48.5.441
In this work the effect of hemicellulases on birch kraft pulp was evaluated by following the amount of lignin leached from kraft pulp after enzymatic treatment. The difference in the amount of lignin leached by 0.01M NaOH solution from the xylanase-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99095b28aeaf2aecdd21022d8c48ebc1
https://cris.vtt.fi/en/publications/344b69ae-bf7f-4c75-a66b-4a69f57e65f8
https://cris.vtt.fi/en/publications/344b69ae-bf7f-4c75-a66b-4a69f57e65f8
Autor:
Jorma Sundquist, Pentti Väätänen
Publikováno v:
Internationale Revue der gesamten Hydrobiologie und Hydrographie. 62:797-804
Microbial cellulolytic activity was determined by an indirect method (loss of tensile strength in cotton yarn). The activity values were high in late autumn, but low in spring and early summer. The factors responsible for the seasonal variation are d
Publikováno v:
Nordic Pulp & Paper Research Journal. 3:119-123
Autor:
Von Jorma Sundquist, Heinz Herlinger
Publikováno v:
Angewandte Makromolekulare Chemie. 14:203-212
Durch Polykondensation von 2-n-Butoxy-4,6-dichlor-s-triazin mit aromatischen Diaminen, insbesondere 4,4′-Diamino-diphenylather, in N-Methylpyrrolidon erhalt man in Gegenwart von Lithiumcarbonat hochmolekulare Poly-(n-butoxy-arylen-amino-s-triazinon