Hemicelluloses from stone pine, holm oak, and Norway spruce with subcritical water extraction − comparative study with characterization and kinetics

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: María Andérez Fernández, Jussi Rissanen, Andrea Pérez Nebreda, Chunlin Xu, Stefan Willför, Juan García Serna, Tapio Salmi, Henrik Grénman
Publiceringsår: 2018
Tidskrift: Journal of Supercritical Fluids
Volym: 133
Nummer: Part 2
Artikelns första sida, sidnummer: 647
Artikelns sista sida, sidnummer: 657
eISSN: 1872-8162


Abstrakt

Extraction of hemicelluloses with subcritical water is an efficient and environmentally benign way of fractionating biomass, including lignocelluloses. The composition and extraction behavior of hemicelluloses from wood depends significantly on the species, which affects the obtained product and the requirements of the extraction process. The current work focuses on the extraction of hemicelluloses from three chemically and structurally different, interesting and economically important tree species namely stone pine (Pinus pinea), holm oak (Quercus ilex), and Norway spruce (Picea abies), for which the literature on holm oak and stone pine hemicelluloses is almost non-existent. The work was performed with identical experimental methods, to obtain completely comparable results. The effect of temperature, raw material and solid-liquid ratio on the extraction kinetics, pH and molar mass, was studied. The results revealed significant differences in the extraction behavior and composition of the different species.


Nyckelord

Chemical Engineering

Senast uppdaterad 2019-15-12 vid 04:40