The trunk bark of Tabebuia caraiba Bignoniaceae was found to contain four novel iridoids, 6-O-E-p-coumaroyljioglutin D (2), 6-O-E-p-coumaroyl-3-demethyl-3-O-ethyljioglutin D (3), 6-O-E-p-coumaroyl-1-demethyl-1-O-ethyljioglutin D (4), 7-O-E-p-coumaroyljiofuranaldehyde (5), three known iridoids,...

The composition of Xylia xylocarpa (Roxb.) Taub. sawdust showed its potential to be used as a lignin source. It is composed of almost 40% lignin, 20% glucan and 10% hemicellulose. In this work, lignin in the sawdust was extracted with potassium hydroxide (KOH) in three different conditions: (1)...

Teak wood has chemical compounds that can be used for pharmaceutical and textile industries, in addition, this compounds are related to resistance to biodeterioration, color and modification processes. Heartwood and sapwood of T. grandis (teak), 15 years-old, were characterized by Py-CG/MS analysis ...

Several studies have highlighted the importance of the chemical composition of Eucalyptus woods in the generation of thermal energy and charcoal production. However, the influence of wood chemical constituents on the pyrolysis mass balance is still not sufficiently clear. This paper brings new...

Lignin is the main factor inhibiting enzymatic hydrolysis of lignocellulosic biomass. Different pretreatments can alter chemical and structural characteristics of lignin, thus affecting its adsorption capacity of enzymes. Herein, enzymatic mild acid lignin (EMAL) was separated from poplar branch...

The aim of this study focussed on identifying chemical compounds (wood extractives) using different solvents, as well as their performance as a wood preservative against subterranean termites, Coptotermes gestroi (Wasmann) attack. The source of wood extractives was from Palaquium gutta (Hook.f.)...

The profitability and sustainability of future biorefineries are dependent on efficient feedstock use. Therefore, it is essential to valorize lignin when using wood. We have developed an integrated biorefinery that converts 78 weight % (wt %) of birch into xylochemicals. Reductive catalytic...

Effects of deep eutectic solvent (DES) treatment were determined for the chemical composition of the sapwood and heartwood of red pine (Pinus densiflora). Two DES systems were made from the mixture of choline chloride (ChCl) and two different hydrogen bond donors (HBDs), namely, lactic acid (LA)...

Agarwood study is getting importance day today because of its advancement in chemical benefits as well as benefits in healthcare. This study elaborates and reviews the detailed structure of agarwood with its benefits in medicine as well as our life. The agarwood has a high density and can sink in...

In this study, the cellulose and hemicelluloses in heartwood, sapwood, and bark of E. urophylla × E. grandis were comprehensively investigated. The ultrastructural topochemistry of carbohydrates in cell walls was examined in situ by confocal Raman microscopy. Cellulose and alkali-extractable...