The study of chemical composition of juvenile poplar branches (Populus deltoides x maximowiczii)
Journal Title: Annals of WULS, Forestry and Wood Technology; Zeszyty naukowe SGGW - Year 2016, Vol 93, Issue
Abstract
The study of chemical composition of juvenile poplar branches (Populus deltoides x maximowiczii). The aim of this work was determination of chemical composition of the poplar annual shoots collected from a plantation energy crop. The whole of the biomass, i.e. wood as well as bark and leaves, were taken into consideration, all the components being compared in the aspect of suitability for the bioethanol production process. Among the determinations of chemical composition the contents of extractives, cellulose, holocellulose, hemicelluloses and lignin were investigated. Generally, classical gravimetric methods were used, but in case of lignin a spectrophotometric method with acetyl bromide was used. On the basis of the studies performed the juvenile poplar wood was found to possess significant cellulose and hemicelluloses contents (respectively 42.6% and 42.9%) and also low lignin and extractives contents (respectively 19.0% and 2.3%). A remarkably desirable chemical composition of the Populus deltoides x maximowiczii wood opens up sound prospects for its use in the bioethanol production. As concerns the bark and leaves, their use in this process may prove much more cumbersome in view of a high content of the hydrolysis and fermentation inhibitors such as lignin (respectively 12.2% and 25.3%) and extractives (respectively 18.2% and 20.1%)
Authors and Affiliations
Andrzej Antczak, Dorota Andraszewska, Janusz Zawadzki, Monika Marchwicka
Keywords
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