alexa Steam explosion lignins; their extraction, structure and potential as feedstock for biodiesel and chemicals.
Chemistry

Chemistry

Journal of Environmental Analytical Chemistry

Author(s): Li J, Gellerstedt G, Toven K

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Abstract In the present study, a steam explosion wood pre-treatment process, optimized earlier with respect to ethanol production, has been applied to both softwoods (Picea abies and Pinus sylvestris) and hardwoods (Betula verrucosa and Populus tremula). The alkaline extractable lignins have then been isolated to investigate lignin separation efficiency and lignin structure and to evaluate their potential for producing value-added products, such as biodiesel components or chemicals, in terms of the purity, molecular size, functional groups, beta-O-4' inter-unit linkage content, and degradability in a subsequent processing treatment. The mechanism of lignin modification and possible improvements to the steam explosion pre-treatment process are discussed. This article was published in Bioresour Technol and referenced in Journal of Environmental Analytical Chemistry

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