• lignocellulosic biomass

    Lignocellulosic biomass

    Lignocellulose refers to plant dry matter (), so called lignocellulosic biomass.It is the most abundantly available raw material on the Earth for the production of biofuels, mainly bio-ethanol.It is composed of carbohydrate polymers (cellulose, hemicellulose), and an aromatic polymer ().These carbohydrate polymers contain different sugar monomers (six and five carbon sugars) and they are

  • dynamics of flocculation of lignocellulosic hydrolyzates

    Dynamics of Flocculation of Lignocellulosic Hydrolyzates

    Flocculation reduced the hydrolyzates’ turbidity from >10000 to under 20. With PEI and pDADMAC, flocculation occurred rapidly when the zeta potential of the colloid was close to zero showing that charge neutralization is the significant destabilizing mechanism. At higher dosages, redispersion occurred indicating that patching is also

  • dynamics of flocculation of lignocellulosic hydrolyzates

    Dynamics of Flocculation of Lignocellulosic Hydrolyzates

    Dynamics of Flocculation of Lignocellulosic Hydrolyzates by Polymers Article in Industrial & Engineering Chemistry Research 51(19):6847–6861 · May 2012 with 107 Reads How we measure 'reads'

  • flocculation of lignocellulosic hydrolyzates

    FLOCCULATION OF LIGNOCELLULOSIC HYDROLYZATES

    2015-02-12· Flocculation reduced the hydrolyzates' turbidity from >10,000 to under 20. With PEI and pDADMAC, flocculation occurred rapidly when the zeta potential of the colloid was close to zero, showing that charge neutralization is the significant destabilizing mechanism. At higher dosages, redispersion occurred indicating that patching is also

  • controlled flocculation of lignocellulosic

    CONTROLLED FLOCCULATION OF LIGNOCELLULOSIC

    2016-03-24· Controlled Flocculation of Lignocellulosic Hydrolyzates Using Staged and Multiple Flocculants Sugar maple chips were obtained from SUNY ESF Heiberg forest in Tully, N.Y. These wood chips were subjected to hot water extraction in MK digester, in 4:1 water to wood ratio at 160° C. for 2

  • flocculation causes inhibitor pubmed central (pmc)

    Flocculation Causes Inhibitor PubMed Central (PMC)

    Therefore, it is plausible that flocculation can indeed be a beneficial trait in second-generation bioethanol production. In this study, we tested the hypothesis that strong flocculation would lead to improved fermentation performance in lignocellulose-derived inhibitory media, by

  • ca2868154a1 flocculation of lignocellulosic hydrolyzates

    CA2868154A1 Flocculation of lignocellulosic hydrolyzates

    flocculation lignin Prior art date 2012-03-20 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number CA2868154A Other languages French (fr) Inventor Lakshmi Rakesh Kumar YASARLA

  • coagulation-flocculation treatment of municipal

    Coagulation-flocculation treatment of municipal

    Coagulation-flocculation treatment of municipal wastewater based on anionized nanocelluloses Article in Chemical Engineering Journal 231:59-67 · September 2013 with 719 Reads How we measure 'reads'

  • wo2013142352a1 flocculation of lignocellulosic

    WO2013142352A1 Flocculation of lignocellulosic

    A method of separating a lignin-rich solid phase from a solution, comprising: pretreating a lignocellulosic biomass with a pretreatment fluid having to remove soluble components, colloidal material and primarily lignin containing particles; separating the pretreated lignocellulosic biomass from the pretreatment fluid with soluble components, colloidal material and primarily lignin containing

  • pretreatment of lignocellulose: formation of inhibitory

    Pretreatment of lignocellulose: Formation of inhibitory

    Most lignocellulose-derived inhibitors form during pretreatment when hemicelluloses and/or lignin are solubilized and degraded ().Extractives and cellulose that is unintentionally affected by the pretreatment are other sources ().Since the formation of inhibitory substances is much dependent on the pretreatment process, this review includes a brief discussion on the most commonly used

  • colloidal stability and aggregation of

    COLLOIDAL STABILITY AND AGGREGATION OF

    Welcome to BioResources! This online, peer-reviewed journal is devoted to the science and engineering of biomaterials and chemicals from lignocellulosic sources for new end uses and new capabilities.

  • bioconversion of lignocellulose and simultaneous

    Bioconversion of lignocellulose and simultaneous

    The slight decrease in flocculation efficiency at pH 3 and pH 10 may be attributed to the partial degradation of MBF-X3 . There had been similar reports for bioflocculants from Klebsiella sp. OS-1 and Bacillus aryabhattai PSK1 showing flocculating activity over a broad pH range. 3.3.2. Effect of temperature on the activity and stability of the

  • effect of fermentation conditions on the flocculation

    Effect of Fermentation Conditions on the Flocculation

    Flocculation is a desirable property in industrial yeasts and is particularly important in the fuel ethanol industry because it provides a simple and cost-free way to separate yeast cells from fermentation products. In the present study, the effect of pH and lignocellulose-derived sugars on yeast flocculation was investigated using a flocculent

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    2010-11-01· Read "Polymer induced flocculation and separation of particulates from extracts of lignocellulosic materials, Bioresource Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • valorization of untreated rice bran towards bioflocculant

    Valorization of untreated rice bran towards bioflocculant

    2017-04-13· Microalgae are currently considered as a promising feedstock for the production of biofuels and high-value products. However, the efficient harvest of microalgal biomasses from their culture broth is a major challenge. The harvesting of algal biomass by flocculation combined with gravity sedimentation is more convenient and cost-effective than traditional methods such as centrifugation and

  • a combined adsorption and flocculation process

    A combined adsorption and flocculation process

    The spent liquor (SL) of a neutral sulfite semichemical pulping process contains lignocelluloses that are currently treated in a waste water system. In this work, an adsorption process using activated carbon (AC) was considered for isolating the lignin and hemicelluloses from SL. The maximum adsorptions of 0.9 g/g lignin and 0.43 g/g of hemicelluloses on AC were achieved under the conditions of...

  • inhibitor tolerance and flocculation of a yeast strain

    Inhibitor tolerance and flocculation of a yeast strain

    genes, known to confer resistance to lignocellulose-derived inhibitors, was generally smaller in CCUG53310 than in CBS8066 in inhibitory media. The flocculation of CCUG53310 was linked to the expression of,FLO10. and one or more of . FLO8, FLO1FLO5. or . FLO9. Flocculation depended on cell wall proteins and Ca. 2+ ions, but was almost

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    Flocculation test. PEG400-lignin was used for the flocculation test as a suspension (pH 6.5) including small particles of glycol lignin. The required amount of the cationized glycol lignin (0.1, 0.5, and 1.0 wt% based on solid content of the suspension) was added to the suspension in

  • statistical analysis of the performance of polymeric

    Statistical Analysis of the Performance of Polymeric

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  • flocculating zymomonas mobilis is a promising host to be

    Flocculating Zymomonas mobilis is a promising host to be

    Furthermore, ethanol fermentation bythe flocculating Z. mobilis ZM401 was explored. Although no significant difference was observed in ethanol yield and productivity, the flocculation of the bacterial species enabled biomass recovery by cost-effective sedimentation, instead of centrifugation with intensive capital investment and energy

  • flocculating zymomonas mobilis is a promising host to be

    Flocculating Zymomonas mobilis is a promising host to be

    Furthermore, ethanol fermentation bythe flocculating Z. mobilis ZM401 was explored. Although no significant difference was observed in ethanol yield and productivity, the flocculation of the bacterial species enabled biomass recovery by cost-effective sedimentation, instead of centrifugation with intensive capital investment and energy

  • colloidal stability and aggregation of

    COLLOIDAL STABILITY AND AGGREGATION OF

    Welcome to BioResources! This online, peer-reviewed journal is devoted to the science and engineering of biomaterials and chemicals from lignocellulosic sources for new end uses and new capabilities.

  • flocculation causes inhibitor tolerance in saccharomyces

    Flocculation Causes Inhibitor Tolerance in Saccharomyces

    The degree of flocculation and hydrophobicity of the cells were correlated to the length of the gene variant. The effect of different strength of flocculation on the fermentation performance of the strains was studied in defined medium with or without fermentation inhibitors, as well as in media based on dilute acid spruce hydrolysate. Strong

  • ethanol production from lignocellulose using high local

    Ethanol production from lignocellulose using high local

    Hence, the interest in flocculation was triggered, as a more convenient way to keep the cells together. To investigate whether flocculation increases the tolerance, like encapsulation, recombinant flocculating yeast strains were constructed and compared with the non-flocculating parental strain. Experiments showed that strong flocculation did

  • valorization of untreated rice bran towards bioflocculant

    Valorization of untreated rice bran towards bioflocculant

    2017-04-13· Microalgae are currently considered as a promising feedstock for the production of biofuels and high-value products. However, the efficient harvest of microalgal biomasses from their culture broth is a major challenge. The harvesting of algal biomass by flocculation combined with gravity sedimentation is more convenient and cost-effective than traditional methods such as centrifugation and

  • induced flocculation of pachysolen tannophilus using the

    Induced flocculation of Pachysolen tannophilus using the

    OSTI.GOV Journal Article: Induced flocculation of Pachysolen tannophilus using the tower fermentor

  • effect of fermentation conditions on the flocculation

    Effect of Fermentation Conditions on the Flocculation

    In the present study, the effect of pH and lignocellulose-derived sugars on yeast flocculation was investigated using a flocculent Saccharomyces cerevisiae, MA-R4, which has been recombinantly engineered to simultaneously co-ferment glucose and xylose to ethanol with high productivity. The flocculation level of MA-R4 dramatically decreased at

  • microalgae chlorella vulgaris biomass harvesting

    Microalgae Chlorella vulgaris biomass harvesting

    2018-06-28· In general, chitosan is a cationic polyelectrolyte derived by the deacetylation of chitin. Traditionally, chitosan has been suggested as a natural flocculant for wastewater treatment, since it is non-toxic, non-corrosive, biodegradable, safe to handle and has attractive adsorption and flocculation ability [22, 26, 27].Due to high cationic charge density, chitosan can strongly absorb the

  • polymer water treatment polyelectrolyte flocculant

    Polymer Water Treatment Polyelectrolyte Flocculant

    Polymer Water Treatment Polyelectrolyte Flocculant with High Molecular Weight Description. Blufloc Polyacrylamide (PAM) / Polyelectrolyte is water soluble polymer

  • production of biofuels from cellulose of woody

    Production of Biofuels from Cellulose of Woody

    2. Pretreatment of biomass. The complex structure of lignocellulosic biomass makes its utilization in biofuel production difficult. Lignocellulosic raw materials are generally composed of 40-50% cellulose, 25-35% hemicelluloses and 15-20% lignin [].A pretreatment stage is necessary to dissociate the plant cell wall in order to improve the accessibility of chemicals and/or microorganisms to

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    Biofuels from lignocellulosic materials like wood are renewable and sustainable alternatives to petroleum and other fossil fuels. Wood can be grown and harvested without adding to the carbon load of the atmosphere and thus can be part of the solution to the problem posed by global climate changes. Recently much interest has developed on the concept of the forest product biorefinery, where wood

  • pdadmac as a flocculant for lignosulfonate of nssc

    PDADMAC as a flocculant for lignosulfonate of NSSC

    The lignocellulose removal was more efficient for the dual flocculation system of low and high molecular weights PDADMAC than for individual PDADMAC systems. Overall, 49% of lignosulfonate, 47% of hemicelluloses and 97% of turbidity were removed from SL from the dual system when 10 mg/g low molecular weight PDADMAC and 10 mg/g high molecular

  • flocculation causes inhibitor tolerance in saccharomyces

    Flocculation Causes Inhibitor Tolerance in Saccharomyces

    The flocculation of the weakly flocculating mutant was inhibited by all sugars tested. Mannose-dependent inhibition of the flocculation could potentially be a problem in high gravity spruce hydrolysates, which usually contain relatively large amounts of mannose . However, this is not a major issue, since at 0.8 M (144 g/liter) mannose, the

  • frontiers flo1, flo5 and flo11 flocculation gene

    Frontiers FLO1, FLO5 and FLO11 Flocculation Gene

    2018-10-31· To test this hypothesis, yeast strains with overexpressed and deleted flocculation genes (FLO1, FLO5 and FLO11) were evaluated for biocapsule formation to observe the impact of gene expression on biocapsule diameter, number, volume, dry mass, and percent immobilized vs non-immobilized cells. Overexpression of all three genes enhanced

  • peo flocculation process to improve the lignin removal

    PEO flocculation process to improve the lignin removal

    PEO flocculation process to improve the lignin removal from the pre-hydrolysis liquor of kraft-based dissolving pulp production process . HOME ; PEO flocculation process to improve the lignin removal from the pre-hydrolysis liquor of kraft-based dissolving pulp production process

  • preparation of flocculant for optimizing glycol lignin

    Preparation of flocculant for optimizing glycol lignin

    Flocculation test PEG400-lignin was used for the flocculation test as a suspen-sion (pH 6.5) including small particles of glycol lignin. The required amount of the cationized glycol lignin (0.1, 0.5, and 1.0 wt% based on solid content of the suspension) was added to the suspension in

  • inhibitor tolerance and flocculation of a yeast strain

    Inhibitor tolerance and flocculation of a yeast strain

    Inhibitor tolerance and flocculation of a yeast strain suitable for second generation bioethanol production. [].,15, 3, pp.5-5. ISSN 0717-3458. ^len^aBackground: Robust second generation bioethanol processes require microorganisms able to ferment inhibitory lignocellullosic hydrolysates.

  • inhibitor tolerance and flocculation of a yeast core

    Inhibitor tolerance and flocculation of a yeast CORE

    Despite the higher tolerance, the increase in expression of the YAP1, ATR1 and FLR1 genes, known to confer resistance to lignocellulose-derived inhibitors, was generally smaller in CCUG53310 than in CBS8066 in inhibitory media. The flocculation of CCUG53310 was linked to the expression of FLO8, FLO10 and one or more of FLO1, FLO5 or FLO9

  • fibre and particle engineering university of oulu

    Fibre and particle engineering University of Oulu

    The Cellulose research team focuses on biomaterials and chemicals derived from various lignocellulose resources especially on cellulose of nano- and micromaterials, their hybrid structures with inorganics/biocompounds and their applications. These include bionanochemicals such as adsorbents, flocculation agents, surfactants, emulsifiers and

  • adaptation of a flocculent saccharomyces deepdyve

    Adaptation of a flocculent Saccharomyces DeepDyve

    2013-02-01· Read "Adaptation of a flocculent Saccharomyces cerevisiae strain to lignocellulosic inhibitors by cell recycle batch fermentation, Applied Energy" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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