TY - JOUR
T1 - Scots pine (Pinus sylvestris) bark composition and degradation by fungi
T2 - Potential substrate for bioremediation
AU - Valentín, Lara
AU - Kluczek-Turpeinen, Beata
AU - Willför, Stefan
AU - Hemming, Jarl
AU - Hatakka, Annele
AU - Steffen, Kari
AU - Tuomela, Marja
N1 - Funding Information:
Author Lara Valentín thanks the Finnish Graduate School of Environmental Science and Technology (EnSTe) for supporting her PhD studies. This study was funded by Niska ja Nyyssönen Oy and by the Finnish Funding Agency for Technology and Innovation (TEKES) through SYMBIO program.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2010/4
Y1 - 2010/4
N2 - The composition of Scots pine bark, its degradation, and the production of hydrolytic and ligninolytic enzymes were evaluated during 90 days of incubation with Phanerochaete velutina and Stropharia rugosoannulata. The aim was to evaluate if pine bark can be a suitable fungal substrate for bioremediation applications. The original pine bark contained 45% lignin, 25% cellulose, and 15% hemicellulose. Resin acids were the most predominant lipophilic extractives, followed by sitosterol and unsaturated fatty acids, such as linoleic and oleic acids. Both fungi degraded all main components of bark, specially cellulose (79% loss by P. velutina). During cultivation on pine bark, fungi also degraded sitosterol, produced malic acid, and oxidated unsaturated fatty acids. The most predominant enzymes produced by both fungi were cellulase and manganese peroxidase. The results indicate that Scots pine bark supports enzyme production and provides nutrients to fungi, thus pine bark may be suitable fungal substrate for bioremediation.
AB - The composition of Scots pine bark, its degradation, and the production of hydrolytic and ligninolytic enzymes were evaluated during 90 days of incubation with Phanerochaete velutina and Stropharia rugosoannulata. The aim was to evaluate if pine bark can be a suitable fungal substrate for bioremediation applications. The original pine bark contained 45% lignin, 25% cellulose, and 15% hemicellulose. Resin acids were the most predominant lipophilic extractives, followed by sitosterol and unsaturated fatty acids, such as linoleic and oleic acids. Both fungi degraded all main components of bark, specially cellulose (79% loss by P. velutina). During cultivation on pine bark, fungi also degraded sitosterol, produced malic acid, and oxidated unsaturated fatty acids. The most predominant enzymes produced by both fungi were cellulase and manganese peroxidase. The results indicate that Scots pine bark supports enzyme production and provides nutrients to fungi, thus pine bark may be suitable fungal substrate for bioremediation.
KW - Extractives
KW - Hydrolytic enzymes
KW - Manganese peroxidase
KW - Phanerochaete velutina
KW - Stropharia rugosoannulata
UR - http://www.scopus.com/inward/record.url?scp=77951250816&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2009.11.052
DO - 10.1016/j.biortech.2009.11.052
M3 - Article
C2 - 20005699
AN - SCOPUS:77951250816
SN - 0960-8524
VL - 101
SP - 2203
EP - 2209
JO - Bioresource Technology
JF - Bioresource Technology
IS - 7
ER -