Comparative sugar recovery data from laboratory scale application of leading pretreatment technologies to corn stover

Fermentable sugars by chemical hydrolysis of biomass

“…Enzymatic methods of saccharification are the most common, and use physical and chemical pretreatment processes (13) followed by hydrolysis with cellulases to produce sugars. The proper combination of pretreatment and enzymes for a given feedstock enables high yields of sugars from both hemicellulose and cellulose components (14,15). Nonetheless, the costs of both pretreatment and enzymes [one-third of the cost of ethanol production from cellulose (16)] and low rates of hydrolysis are potential drawbacks to enzymatic hydrolysis.…”

La production de carburants à partir de biomasse lignocellulosique par voie biologique : état de l’art et perspectives

“…Parmi celles-ci l'on peut citer les xylanases, les xylosidases et les arabinofuranosidases qui agissent sur les arabinoxylanes (les hémicellu-loses majeurs chez les graminées et le bois de feuillu) [23,24]. Ces enzymes sont particulière-ment utiles lorsqu'il s'agit de l'hydrolyse d'une cellulose préparée par prétraitement alcalin, car comme nous l'avons déjà précisé, ce pré-traitement ne permet pas de dépolymériser totalement les hémicelluloses [25]. Par ailleurs, ces enzymes sont particulièrement cruciales lors du traitement des biomasses riches en hémicelluloses telles que certains coproduits agricoles comme le son de blé et les rafles de maïs [26].…”

Hydrothermal Conversion of Cellulose to Glucose and Oligomers in Dilute Aqueous Formic Acid Solution

“…Many kinds of biomass, including wood, corn stover, and cotton fiber, have been pre-treated in dilute or concentrated acid solutions to moderately accelerate the hydrolysis of the samples [1][2][3][4][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. The most commonly used acid is sulfuric acid [12][13][14][15][16][17][18][19][20][21][22].…”

“…The most commonly used acid is sulfuric acid [12][13][14][15][16][17][18][19][20][21][22]. Organic acids such as formic acid and acetic acid are produced during the thermal treatment of lignocellulosic samples, making these potential pre-treatment candidates as well.…”