Lignin Nanoparticles Produced from Enzymatic Hydrolysis Residue of Biorefinery Via Hydrotrope Fractionation for Inhibitors Detoxification and Improve Ethanol Fermentability

2021 ◽  
Author(s):  
Junjun Zhu ◽  
Han Zhang ◽  
Ningxin Jiao ◽  
Guangliu Xu ◽  
Yong Xu
Keyword(s):  
Enzymatic Hydrolysis ◽  
Hydrolysis Residue

scholarly journals Preparation of Lignosulfonates from Biorefinery Lignins by Sulfomethylation and Their Application as a Water Reducer for Concrete

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 841 ◽  
Author(s):  
Caoxing Huang ◽  
Junmei Ma ◽  
Weiyu Zhang ◽  
Guohong Huang ◽  
Qiang Yong
Keyword(s):  
Surface Tension ◽  
Compressive Strength ◽  
Enzymatic Hydrolysis ◽  
Zeta Potential ◽  
Water Soluble ◽  
Water Soluble Polymer ◽  
Potential Analysis ◽  
Hydrolysis Residue ◽  
Industrial Standards ◽  
Zeta Potential Analysis

Lignosulfonate (LG), a water-soluble polymer from sulfite pulping process of lignocellulosic biomass, has been commercially applied as admixture for concrete. In this work, lignosulfonates were produced from alkaline lignin (AL) and enzymatic hydrolysis residue (EHR) by sulfomethylation and these lignosulfonates as water reducers for concrete were then evaluated. Results showed that 94.9% and 68.9% of lignins in AL and EHR could be sulfonated under optimum sulfomethylation conditions, respectively. The sulfonic groups in lignosulfonates from AL (AL-LG) and EHR (EHR-LG) were 1.6 mmol/g and 1.0 mmol/g, respectively. Surface tension and zeta potential analysis indicated that both AL-LG and EHR-LG can be potentially used to as dispersant for improving the fluidity of the cement paste, similarly to commercial lignosulfonate (CM-LG). Adding 0.2 wt % of AL-LG, EHR-LG, and CM-LG in the concrete, the compressive strength (28 days) of concretes increased from 38.4 Mpa to 41.6, 42.6, and 40.9 Mpa, respectively. These findings suggest that the lignosulfonate from biorefinery lignin by sulfomethylation can meet the industrial standards as water reducers for cement admixtures.

Antioxidant and anti-inflammation of enzymatic-hydrolysis residue polysaccharides by Lentinula edodes

2018 ◽  
Vol 120 ◽  
pp. 811-822 ◽  
Author(s):  
Zhenzhen Ren ◽  
Wenbo Liu ◽  
Xinling Song ◽  
Yanran Qi ◽  
Chen Zhang ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Lentinula Edodes ◽  
Hydrolysis Residue ◽  
Anti Inflammation

Metabolic Studies of Vitamin K1-14C and Menadione-14C in the Normal and Hepatectomized Rats

1968 ◽  
Vol 19 (03/04) ◽  
pp. 383-388 ◽  
Author(s):  
R Losito ◽  
C. A Owen ◽  
E. V Flock ◽  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Oral Anticoagulants ◽  
Urinary Metabolites ◽  
The Other ◽  
Vitamin K1 ◽  
Vitamin K3 ◽  
Metabolic Studies ◽  
Intact Rats

SummaryThe metabolism of vitamin K1- 14C and menadione-14C (vitamin K3-14C) was studied in normal and hepateetomized rats. After the administration of menadione, about 70% of the 14C was excreted in the urine in 24 hrs in both types of rats. Two urinary metabolites were identified by enzymatic hydrolysis: one a glucuronide and the other a sulfate of reduced menadione. Thus, the liver is not necessary for the metabolism of menadione. In the vitamin K1 studies, the intact rats excreted only 10% of the 14C and the hepatectomized rats excreted less than 0.5%. The retention of vitamin K1 may explain its superiority over menadione as an antidote for overdosages of oral anticoagulants.

From biorefineries to bioproducts: conversion of pretreated pulp from biorefining streams to lignocellulose nanofibers

TAPPI Journal ◽  
2019 ◽  
Vol 18 (4) ◽  
pp. 233-241
Author(s):  
CHENGGUI SUN ◽  
RICHARD CHANDRA ◽  
YAMAN BOLUK
Keyword(s):  
Energy Consumption ◽  
Enzymatic Hydrolysis ◽  
Rheological Behavior ◽  
Material Basis ◽  
Softwood Pulp ◽  
Energy Consumptions ◽  
Hardwood Pulp ◽  
The Stability ◽  
Lignocellulose Nanofibers

This study investigates the use of pretreatment and enzymatic hydrolysis side streams and conversion to lignocellulose nanofibers. We used a steam-exploded and partial enzymatic hydrolyzed hardwood pulp and an organosolv pretreated softwood pulp to prepare lignocellulose nanofibers (LCNF) via microfluidization. The energies applied on fibrillation were estimated to examine the energy consumption levels of LCNF production. The energy consumptions of the fibrillation processes of the hardwood LCNF production and the softwood LCNF production were about 7040-14080 kWh/ton and 4640 kWh/ton on a dry material basis, respectively. The morphology and dimension of developed hardwood and softwood LCNFs and the stability and rheological behavior of their suspensions were investigated and are discussed.

Microwave-assisted enzymatic hydrolysis of starch

2009 ◽  
Author(s):  
Marcin Lukasiewicz ◽  
Anna Osowiec ◽  
Magdalena Marciniak
Keyword(s):  
Enzymatic Hydrolysis ◽  
Microwave Assisted ◽  
Hydrolysis Of
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