Optimization of peroxide-alkaline pretreatment and enzymatic hydrolysis of barley straw (Hordeum vulgare L.) to produce fermentable sugars using a Box–Behnken design

Characterization of cardinal vine shoot waste as new resource of lignocellulosic biomass and valorization into value-added chemical using Plackett–Burman and Box Behnken

“…The morphological structure of lignocellulosic biomass presents a complex structure, where the holocellulose and hemicellulose are closely linked to lignin, that hinders the depolymerisation of polysaccharides into monosaccharides [15]. Nowadays, agricultural wastes are excellent lignocellulosic feedstocks [16,17]; biomass waste is considered interesting, since it is available in large amounts [18,19]. The grape is one of the major fruits to be cultivated by man and vine is an important plant crops in the world.…”

Effect of Pretreatments on the Enzymatic Hydrolysis of High-Yield Bamboo Chemo-Mechanical Pulp by Changing the Surface Lignin Content

“…The stretching vibration peaks at 3423 cm −1 were assigned to the hydroxyl and phenolic hydroxyl groups [ 31 , 32 ], and the stretching vibration peaks at 1739 cm −1 were assigned to non-conjugated carbonyl groups [ 33 , 34 ]. The adsorption peak at 1596, 1510, 1462, and 1427 cm −1 were assigned to the CH plane bending vibration of skeleton structure of aromatic ring in lignin [ 35 , 36 ].…”

Recent Developments in the Delignification and Exploitation of Grass Lignocellulosic Biomass

“…99 Barley straw was investigated with relation to its response to optimized alkaline hydrogen peroxide pretreatment, and a substantial improvement of glucose yields through enzymatic hydrolysis of the solid residue was assessed. 100 Another promising study deals with hydrogen peroxide pretreatment prior to ammonia fiber expansion of corn stover; in detail, demethylation of G units took place, concomitant with cleavage of a significant fraction of β-O−4 linkages; conversely, resinol and phenylcoumaran moieties remained substantially unchanged. Some γ carbons were oxidized, and the primary alcohol functions were changed into carbamides.…”

“…Panicum virgatum and Zea mays derived LBM were subjected to alkaline hydrogen peroxide pretreatment; in both materials, a substantial cleavage of alkyl aryl ether linkages was found, in particular of β-O–4 ones, leading to lignin solubilization and increase of polysaccharide hydrolysis . Barley straw was investigated with relation to its response to optimized alkaline hydrogen peroxide pretreatment, and a substantial improvement of glucose yields through enzymatic hydrolysis of the solid residue was assessed . Another promising study deals with hydrogen peroxide pretreatment prior to ammonia fiber expansion of corn stover; in detail, demethylation of G units took place, concomitant with cleavage of a significant fraction of β-O–4 linkages; conversely, resinol and phenylcoumaran moieties remained substantially unchanged.…”