University of Helsinki

Post Doc Sanni Raiskila

sanni.raiskila(at)metla.fi

Finnish Forest Research Institute (Metla)
Vantaa Research Unit
P.O. Box 18 (Jokiniemenkuja 1)
FI-01301 Vantaa
FINLAND

>> Research | >> Recent publications

The general aim of this project is to study variation in the content and quality of lignin in Norway spruce and Silver birch trees in collaboration with the Finnish Forest Research Institute (Metla) and the University of Helsinki. A method based on Fourier transform infrared (FTIR) spectroscopy and principal component regression (PCR) has been developed for a large scale survey of Finnish Norway spruces. The variation has been studied in the lignin content and wood properties between different cutting clones and growing environments. FTIR spectroscopy is applied also for an analysis of Silver birch and other wood species.

The other aim of the project is to modify wood material properties for different uses. Wood lignin has been modified with a natural phenolic compound, coniferyl alcohol, in order to increase the wood decay resistance. The results of the project can be utilized in the forest tree breeding and in the different industrial purposes.

Recent publications

Raiskila S (2008) The effect of lignin content and lignin modification on Norway spruce wood properties and decay resistance. Academic dissertation. Dissertationes Forestales 68, 34 p + 5 original articles.

Raiskila S (2008) Ligniinin määrän ja ligniinin modifioinnin vaikutus kuusen puuaineen ominaisuuksiin ja lahonkestoon. Tutkimusseloste. Metsätieteen aikakauskirja 2. s 152–153. (in Finnish)

Raiskila S, Pulkkinen M, Laakso T, Fagerstedt K, Löija M, Mahlberg R, Paajanen L, Ritschkoff A-C and Saranpää P (2007) FTIR spectroscopic prediction of Klason and acid soluble lignin variation in Norway spruce cutting clones. Silva Fennica 41(2): 351–371.

Raiskila S, Saranpää P, Fagerstedt K, Laakso T, Löija M, Mahlberg R, Paajanen L and Ritschkoff A-C (2006) Growth rate and wood properties of Norway spruce cutting clones on different sites. Silva Fennica 40(2): 247–256.

Raiskila S, Fagerstedt K, Laakso T, Saranpää P, Löija M, Paajanen L, Mahlberg R and Ritschkoff A-C (2006) Polymerisation of added coniferyl alcohol by inherent xylem peroxidases and its effect on fungal decay resistance of Norway spruce. Wood Science and Technology 40(8): 697–707.

Brunow G, Raiskila S and Björk H (2002) The incorporation of 3,4-dichloroaniline, a pesticide metabolite, into dehydrogenation polymers of coniferyl alcohol (DHPs). Part 2. Identification of a dimeric adduct. Holzforschung 56: 73–75.

Tuomela M, Hatakka A, Raiskila S, Vikman M and Itävaara M (2001) Biodegradation of radiolabelled synthetic lignin (14C-DHP) and mechanical pulp in a compost environment. Applied Microbiology and Biotechnology 55: 492–499.

Brunow G, Raiskila S and Sipilä J (1998) The incorporation of 3,4-dichloroaniline, a pesticide metabolite, into dehydrogenation polymers of coniferyl alcohol (DHPs). Acta Chemica Scandinavica 52: 1338–1342.