Elucidating the effect of the physicochemical properties of organosolv lignins on its solubility and reductive catalytic depolymerization

Simultaneous Lignin Extraction and Fibrillation: A Novel Approach for a Continuous Biorefinery

“…24 The lignin fraction released by cleaving the lignin−carbohydrate complex can be dissolved using an organic solvent. 25,26 At 40% IPA, HM-SSB exhibited the highest extraction rate (7.7%), whereas pretreated SSB exhibited the highest value (13.5%) at 60% IPA (Table 1). This finding contradicts the theoretical results predicted by the literature, in which the solubility parameter of 80% IPA and lignin was evaluated to have the lowest HSP distance and RED value.…”

Organosolv Pretreatment of Cocoa Pod Husks: Isolation, Analysis, and Use of Lignin from an Abundant Waste Product

“…In contrast, carboxylic acid (COOH) functional groups were present in a commercial sample of a model pectin, polygalacturonic acid (Figure 6E, red, peak at 1732 cm −1 ). The pectin was also analyzed using solid-state 13 C NMR, allowing the calculation of the degree of methylation (DM) using the method of Zhu et al 70 (Figure 6D). The pectin that was extracted here using hot water was a low-methoxy pectin, in contrast to previous reports that used different extraction conditions.…”

“…In several biorefinery designs, a pretreatment process is used to simplify the starting biomass by addressing both its recalcitrant nature and its inherent complexity (Figure ). − While a wide range of approaches to biomass pretreatment exist, − the use of mild organosolv pretreatments − often delivers high quality intact lignin as well as cellulose, hemicellulose-derived, and other fractions. Consideration of possible uses for an intact organosolv lignin illustrates the flexibility inherent in using a pretreatment strategy.…”

Metal–organic framework-derived CuO catalysts for the efficient hydrogenolysis of hardwood lignin into phenolic monomers

“…Reductive catalytic deconstruction (RCD) is an effective method to produce aromatic platform chemicals from lignin. [18][19][20][21][22] This strategy enables the efficient hydrogenolysis of lignin to phenolic compounds without affecting the chemical carbohydrate's structural integrity for further processing. 20,23 The hydrogen-donor suitable solvents, degree of reaction, and catalysts could increase the product yield in RCD.…”

“…[18][19][20][21][22] This strategy enables the efficient hydrogenolysis of lignin to phenolic compounds without affecting the chemical carbohydrate's structural integrity for further processing. 20,23 The hydrogen-donor suitable solvents, degree of reaction, and catalysts could increase the product yield in RCD. 21,24,25 Lower-grade aliphatic alcohols, which have hydrogen donor characteristics, are oen applied as organic solvents as they not only increase dissolution at the depolymerization interface and prevent char formation but also offer in situ hydrogen resources during the hydrogenolysis process of lignin.…”