Dissolved air flotation: A novel approach to recovery of organosolv lignin

Catalytic organosolv fractionation of willow wood and wheat straw as pretreatment for enzymatic cellulose hydrolysis

“…Thus, the enzymatic digestibility of the biomass is improved by reducing the recalcitrance of the biomass as well as minimizing the non‐productive binding of hydrolytic enzymes to lignin 1, 2, 4. The extracted lignin fraction can be recovered from the organosolv liquor for further processing 1, 5. Organosolv lignins tend to have a high purity and be essentially free of sulphur and ash.…”

Properties of Rice Stem Extracts Obtained by Using Subcritical Fluids

“…8) It has been reported that the lignocellulosic materials submitted to a subcritical organic solvent produced a black liquor which had radical scavenging ability. [9][10][11] Chiou et al have reported that subcritical aqueous ethanol and acetone were effective for extracting carbohydrates and phenolic compounds from rice bran. 12) We therefore investigated the effects of the ethanol or acetone content in the extractant on the carbohydrate and phenolic contents of a rice stem extract.…”

Extraction of Lignin from Biomass for Biodiesel Production

“…A new approach of organosolv lignin recovery, consisting of simultaneous precipitation and dissolved air flotation (DAF), is proposed. DAF offers a low-energy, low-maintenance alternative to centrifugation and filtration (Macfarlane et al 2009). …”