Abundance and characteristics of lignin liquid intermediates in wood (Pinus ponderosa Dougl. ex Laws.) during hot water extraction

Manuel Raul Pelaez-Samaniego; Vikram Yadama; Manuel Garcia-Perez; Eini C. Lowell

doi:10.1016/j.biombioe.2015.06.012

Treesearch

Abundance and characteristics of lignin liquid intermediates in wood (Pinus ponderosa Dougl. ex Laws.) during hot water extraction

Formally Refereed

Authors:

Manuel Raul Pelaez-Samaniego, Vikram Yadama, Manuel Garcia-Perez, Eini C. Lowell

Year:

2015

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.1016/j.biombioe.2015.06.012

Source:

Biomass and Bioenergy. 81: 117-128. 12 p.

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Download (PDF 4.03 MB): https://research.fs.usda.gov/download/treesearch/49099.pdf

Abstract

The objective of this research was to investigate the effects of the conditions of hot water extraction (HWE) on abundance, properties, and structure of lignin depolymerization products. HWE of extracted softwood (ponderosa pine) was conducted using temperatures from 140 to 320^°C for 90 min. HWE materials were then subjected to a soxhlet extraction process using dichloromethane (DCM). The composition and molecular weight of this DCM-soluble material was conducted using semi-quantitative Py-GC/MS and ESI/MS, which showed that this material is rich in lignin with low molecular weight (

Keywords

lignin, hot water extraction, Ponderosa pine, Pinus ponderous Dougl, ex Lawspretreated wood

Citation

Pelaez-Samaniego, Manuel Raul; Yadama, Vikram; Garcia-Perez, Manuel; Lowell, Eini. 2015. Abundance and characteristics of lignin liquid intermediates in wood (Pinus ponderosa Dougl. ex Laws.) during hot water extraction. Biomass and Bioenergy. 81: 117-128. 12 p.