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Abstract
Production of fuels and chemicals from renewable lignocellulosic feedstocks is a promising alternative to petroleum-derived compounds. Due to the complexity of lignocellulosic feedstocks, microbial conversion of all potential substrates will require substantial metabolic engineering. Non-model microbes offer desirable physiological traits, but also increase the difficulty of heterologous pathway engineering and optimization. The development of modular design principles that allow metabolic pathways to be used in a variety of novel microbes with minimal strain-specific optimization will enable the rapid construction of microbes for commercial production of biofuels and bioproducts. In this review, we discuss variability of lignocellulosic feedstocks, pathways for catabolism of lignocellulose-derived compounds, challenges to heterologous engineering of catabolic pathways, and opportunities to apply modular pathway design. Implementation of these approaches will simplify the process of modifying non-model microbes to convert diverse lignocellulosic feedstocks.
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52
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Trombettoni V, Franco A, Sathicq AG, Len C, Romanelli GP, Vaccaro L, Luque R. Efficient Liquid‐Assisted Grinding Selective Aqueous Oxidation of Sulfides Using Supported Heteropolyacid Catalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201900296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Valeria Trombettoni
- Departamento de Química OrgánicaUniversidad de Córdoba Edificio Marie Curie (C-3), Carretera Nacional IV-A, Km 396 E14014 Córdoba Andalucía (Spain
- Laboratory of Green S.O.C. – Dipartimento di Chimica, biologia e BiotecnologieUniversità degli Studi di Perugia Via Elce di Sotto 8 06123 – Perugia Italy
| | - Ana Franco
- Departamento de Química OrgánicaUniversidad de Córdoba Edificio Marie Curie (C-3), Carretera Nacional IV-A, Km 396 E14014 Córdoba Andalucía (Spain
| | - A. Gabriel Sathicq
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr. Jorge J. Ronco” (CINDECA) CCT-La Plata-CONICET, Departamento de Química Facultad de Ciencias ExactasUniversidad Nacional de La Plata 47°N 257 B1900AJK La Plata Argentina
| | - Christophe Len
- IRCP, UMR 8247 CNRSChimie ParisTech11 rue Pierre et Marie Curie F-75005 Paris France
| | - Gustavo P. Romanelli
- Centro de Investigación y Desarrollo en Ciencias Aplicadas “Dr. Jorge J. Ronco” (CINDECA) CCT-La Plata-CONICET, Departamento de Química Facultad de Ciencias ExactasUniversidad Nacional de La Plata 47°N 257 B1900AJK La Plata Argentina
| | - Luigi Vaccaro
- Laboratory of Green S.O.C. – Dipartimento di Chimica, biologia e BiotecnologieUniversità degli Studi di Perugia Via Elce di Sotto 8 06123 – Perugia Italy
| | - Rafael Luque
- Departamento de Química OrgánicaUniversidad de Córdoba Edificio Marie Curie (C-3), Carretera Nacional IV-A, Km 396 E14014 Córdoba Andalucía (Spain
- Peoples Friendship University of Russia (RUDN University) 6 Miklukho-Maklaya str. 117198 Moscow Russia
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53
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Gu BJ, Dhumal GS, Wolcott MP, Ganjyal GM. Disruption of lignocellulosic biomass along the length of the screws with different screw elements in a twin-screw extruder. BIORESOURCE TECHNOLOGY 2019; 275:266-271. [PMID: 30594836 DOI: 10.1016/j.biortech.2018.12.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/08/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
Proper screw design is crucial for effectively pre-treating wood fibers, to assist in the downstream enzymatic conversion of the cellulose into fermentable sugars. Initially, the impact of extruder barrel temperature (50, 100, and 150 °C) and screw speed (25, 50, and 75 rpm) were studied to arrive at the optimum conditions for sugar yield. Lower temperatures and screw speeds resulted in increased sugar yields. To examine the influence of shear imparted by the screws, the residuals samples were recovered from different zones along the screws and evaluated. Sugar yield, crystallinity index, and the particle size distribution of the material collected at different zones were determined. Glucose yield and xylose/mannose yields of the material along the screws, ranged from 23.25 to 42.88% and from 11.95 to 20.54%, respectively. The importance of the screw design was highlighted.
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Affiliation(s)
- Bon-Jae Gu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Gaurav S Dhumal
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Michael P Wolcott
- Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA
| | - Girish M Ganjyal
- School of Food Science, Washington State University, Pullman, WA 99164, USA.
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54
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Bychkov A, Podgorbunskikh E, Bychkova E, Lomovsky O. Current achievements in the mechanically pretreated conversion of plant biomass. Biotechnol Bioeng 2019; 116:1231-1244. [DOI: 10.1002/bit.26925] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/13/2018] [Accepted: 01/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Aleksey Bychkov
- Laboratory of Solid State ChemistryInstitute of Solid State Chemistry and Mechanochemistry Russian Academy of Sciences Novosibirsk Russia
- Department of Technology of Food Production, Novosibirsk State Technical UniversityNovosibirsk Russia
| | - Ekaterina Podgorbunskikh
- Laboratory of Solid State ChemistryInstitute of Solid State Chemistry and Mechanochemistry Russian Academy of Sciences Novosibirsk Russia
| | - Elena Bychkova
- Department of Technology of Food Production, Novosibirsk State Technical UniversityNovosibirsk Russia
| | - Oleg Lomovsky
- Laboratory of Solid State ChemistryInstitute of Solid State Chemistry and Mechanochemistry Russian Academy of Sciences Novosibirsk Russia
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55
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Catalytic Transfer Hydrogenolysis Reactions for Lignin Valorization to Fuels and Chemicals. Catalysts 2019. [DOI: 10.3390/catal9010043] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Lignocellulosic biomass is an abundant renewable source of chemicals and fuels. Lignin, one of biomass main structural components being widely available as by-product in the pulp and paper industry and in the process of second generation bioethanol, can provide phenolic and aromatic compounds that can be utilized for the manufacture of a wide variety of polymers, fuels, and other high added value products. The effective depolymerisation of lignin into its primary building blocks remains a challenge with regard to conversion degree and monomers selectivity and stability. This review article focuses on the state of the art in the liquid phase reductive depolymerisation of lignin under relatively mild conditions via catalytic hydrogenolysis/hydrogenation reactions, discussing the effect of lignin type/origin, hydrogen donor solvents, and related transfer hydrogenation or reforming pathways, catalysts, and reaction conditions.
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56
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Scholz D, Xie J, Kröcher O, Vogel F. Mechanochemistry-assisted hydrolysis of softwood over stable sulfonated carbon catalysts in a semi-batch process. RSC Adv 2019; 9:33525-33538. [PMID: 35529150 PMCID: PMC9073368 DOI: 10.1039/c9ra07668a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/03/2019] [Indexed: 11/21/2022] Open
Abstract
A two-step process employing stable sulfonated carbons, overcomes the challenging recyclability of mineral acids used in conventional hydrolysis processes.
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Affiliation(s)
- David Scholz
- Paul Scherrer Institute
- Switzerland
- École Polytechnique Fédérale de Lausanne
- 1015 Lausanne
- Switzerland
| | | | - Oliver Kröcher
- Paul Scherrer Institute
- Switzerland
- École Polytechnique Fédérale de Lausanne
- 1015 Lausanne
- Switzerland
| | - Frédéric Vogel
- Paul Scherrer Institute
- Switzerland
- Fachhochschule Nordwestschweiz
- Switzerland
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57
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Krainer S, Smit C, Hirn U. The effect of viscosity and surface tension on inkjet printed picoliter dots. RSC Adv 2019; 9:31708-31719. [PMID: 35527935 PMCID: PMC9072721 DOI: 10.1039/c9ra04993b] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 09/24/2019] [Indexed: 12/29/2022] Open
Abstract
In this study, we investigated the effect of liquid viscosity and surface tension for inkjet printing on porous cellulose sheets. We used five model liquids, representing the operational field of an industrial high speed inkjet printer, as specified by Ohnesorge- and Reynolds number. Drops with 30 pl and 120 pl drop size were jetted with a commercial HSI printhead. We printed on four uncoated papers representing the most relevant grades on the market in terms of hydrophobisation and surface treatment. We are presenting a quantitative analysis of viscosity and surface tension on the print outcome, evaluating dot size, liquid penetration (print through) and surface coverage of the printed dots. The most important finding is that for liquids within the jetting window the variation of the liquid viscosity typically has a 2–3 times higher impact on the print outcome than variation of the liquid surface tension. Increased viscosity in all cases reduces dot area, liquid penetration and liquid surface coverage. Surface tension plays a smaller role for liquid spreading and penetration, except for hydrophobised substrates, where both are reduced for higher surface tension. Interestingly, higher surface tension consistently increases liquid surface coverage for all papers and drop sizes. A detailed analysis on the competing effect of dot spreading and liquid penetration is presented, in terms of viscosity, surface tension and surface coverage of the liquid. In this study, we investigated the effect of liquid viscosity and surface tension for inkjet printing on porous cellulose sheets.![]()
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Affiliation(s)
- Sarah Krainer
- Institute of Paper, Pulp and Fiber Technology
- TU Graz
- 8010 Graz
- Austria
- CD Laboratory for Fiber Swelling and Paper Performance
| | - Chris Smit
- CD Laboratory for Fiber Swelling and Paper Performance
- 8010 Graz
- Austria
- Océ
- Venlo
| | - Ulrich Hirn
- Institute of Paper, Pulp and Fiber Technology
- TU Graz
- 8010 Graz
- Austria
- CD Laboratory for Fiber Swelling and Paper Performance
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58
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Gu BJ, Wolcott MP, Ganjyal GM. Pretreatment with lower feed moisture and lower extrusion temperatures aids in the increase in the fermentable sugar yields from fine-milled Douglas-fir. BIORESOURCE TECHNOLOGY 2018; 269:262-268. [PMID: 30189379 DOI: 10.1016/j.biortech.2018.08.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/26/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
The impact of independent variables of extrusion on dependent variables of pre-milled Douglas-fir forest residuals was studied to enhance the enzymatic hydrolysis for production of fermentable sugar without catalysts. Co-rotating twin screw extruder was operated with three different feedstock moisture contents (30, 40, and 50%) at four different barrel temperatures (25, 50, 100, and 150 °C) as a pretreatment. The specific mechanical energy input ranged from 0.07 and 0.30 kWh/kg and had a very strong positive correlation with torque (r = 0.96, p < 0.01), glucose (r = 0.92, p < 0.01) and xylose/mannose yields with (r = 0.84, p < 0.01). Douglas-fir residuals extruded at lowest moisture content (30%) and temperature (25 °C) had the highest sugar yield, requiring the highest SME. Higher barrel temperature increased the median particle size and had lower glucose and xylose/mannose yields. Recrystallization and agglomeration were observed under higher temperature conditions.
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Affiliation(s)
- Bon-Jae Gu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Michael P Wolcott
- Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA
| | - Girish M Ganjyal
- School of Food Science, Washington State University, Pullman, WA 99164, USA.
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59
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Catalytic Strategies Towards Lignin-Derived Chemicals. Top Curr Chem (Cham) 2018; 376:36. [PMID: 30151801 DOI: 10.1007/s41061-018-0214-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/10/2018] [Indexed: 12/16/2022]
Abstract
Lignin valorization represents a crucial, yet underexploited component in current lignocellulosic biorefineries. An alluring opportunity is the selective depolymerization of lignin towards chemicals. Although challenged by lignin's recalcitrant nature, several successful (catalytic) strategies have emerged. This review provides an overview of different approaches to cope with detrimental lignin structural alterations at an early stage of the biorefinery process, thus enabling effective routes towards lignin-derived chemicals. A first general strategy is to isolate lignin with a better preserved native-like structure and therefore an increased amenability towards depolymerization in a subsequent step. Both mild process conditions as well as active stabilization methods will be discussed. An alternative is the simultaneous depolymerization-stabilization of native lignin towards stable lignin monomers. This approach requires a fast and efficient stabilization of reactive lignin intermediates in order to minimize lignin repolymerization and maximize the envisioned production of chemicals. Finally, the obtained lignin-derived compounds can serve as a platform towards a broad range of bio-based products. Their implementation will improve the sustainability of the chemical industry, but equally important will generate opportunities towards product innovations based on unique biobased chemical structures.
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60
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Fu Y, Gu BJ, Wang J, Gao J, Ganjyal GM, Wolcott MP. Novel micronized woody biomass process for production of cost-effective clean fermentable sugars. BIORESOURCE TECHNOLOGY 2018; 260:311-320. [PMID: 29631181 DOI: 10.1016/j.biortech.2018.03.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 03/18/2018] [Accepted: 03/19/2018] [Indexed: 06/08/2023]
Abstract
Thermo-chemical pretreatments of biomass typically result in environmental impacts from water use and emission. The degradation byproducts in the resulting sugars can be inhibitory to the activities of enzymes and yeasts. The results of this study showed that combining existing commercial comminution technology can reduce total energy consumption with improved saccharification yield while eliminating chemical use. Impact mill was found to be the most efficient milling for size reduction of forest residual chips from ca. 2 mm to a specific value below 100 µm. The further micronization effectively disrupted the recalcitrance of the woody biomass and produced the highly saccharifiable substrates for downstream processing. In addition, extrusion can be integrated into a clean cellulosic sugar process for further fibrillation in place of the conventional mixing processing. The highest energy efficiency was observed on the impact-milled samples with 0.515 kg sugars kWh-1.
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Affiliation(s)
- Yu Fu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, China; Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA.
| | - Bon-Jae Gu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Jinwu Wang
- Forest Products Laboratory, United States Department of Agriculture Forest Service, Madison, WI 53706, USA
| | - Johnway Gao
- Global Cellulose Fibers, International Paper, Federal Way, WA 98001, USA
| | - Girish M Ganjyal
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Michael P Wolcott
- Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA
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61
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Mayer-Laigle C, Blanc N, Rajaonarivony RK, Rouau X. Comminution of Dry Lignocellulosic Biomass, a Review: Part I. From Fundamental Mechanisms to Milling Behaviour. Bioengineering (Basel) 2018; 5:E41. [PMID: 29865229 PMCID: PMC6027489 DOI: 10.3390/bioengineering5020041] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/25/2018] [Accepted: 05/31/2018] [Indexed: 11/22/2022] Open
Abstract
The comminution of lignocellulosic biomass is a key operation for many applications as bio-based materials, bio-energy or green chemistry. The grinder used can have a significant impact on the properties of the ground powders, of those of the end-products and on the energy consumption. Since several years, the milling of lignocellulosic biomass has been the subject of numerous studies most often focused on specific materials and/or applications but there is still a lack of generic knowledge about the relation between the histological structure of the raw materials, the milling technologies and the physical and chemical properties of the powders. This review aims to point out the main process parameters and plant raw material properties that influence the milling operation and their consequences on the properties of ground powders and on the energy consumption during the comminution.
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Affiliation(s)
- Claire Mayer-Laigle
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Nicolas Blanc
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Rova Karine Rajaonarivony
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Xavier Rouau
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
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62
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Mayer-Laigle C, Barakat A, Barron C, Delenne J, Frank X, Mabille F, Rouau X, Sadoudi A, Samson MF, Lullien-Pellerin V. DRY biorefineries: Multiscale modeling studies and innovative processing. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2017.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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63
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Podgorbunskikh EM, Bychkov AL, Bulina NV, Lomovskii OI. Disordering of the Crystal Structure of Cellulose Under Mechanical Activation. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618010328] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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64
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Gu BJ, Wang J, Wolcott MP, Ganjyal GM. Increased sugar yield from pre-milled Douglas-fir forest residuals with lower energy consumption by using planetary ball milling. BIORESOURCE TECHNOLOGY 2018; 251:93-98. [PMID: 29272773 DOI: 10.1016/j.biortech.2017.11.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 05/15/2023]
Abstract
Impact of planetary ball milling on pre-milled wood fiber was studied to improve efficiency of energy consumption for bioconversion using post-harvest forest residuals. Crystalline cellulose decreased from 40.73% to 11.70% by ball milling. Crystallinity index of ball milled wood samples had a negative correlation with glucose yield (r = -0.97, p < .01), xylose/mannose (r = -0.96, p < .01), and a positive correlation with median particle size (r = 0.77, p < .01). Range of glucose yield and xylose/mannose yield for ball milled samples was found to be 24.45-59.67% and from 11.92% to 23.82%, respectively. Morphological changes of the lignocellulosic biomass were observed; the compact fiber bundles of the forest residuals were cleaved to smaller particles with lower aspect ratio with increasing intensity of ball milling. The required energy ranged from 0.50 to 2.15 kWh/kg for 7-30 min of milling respectively.
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Affiliation(s)
- Bon-Jae Gu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Jinwu Wang
- Forest Products Laboratory, United States Department of Agriculture Forest Service, Madison, WI 53726, USA
| | - Michael P Wolcott
- Composite Materials and Engineering Center, Washington State University, Pullman, WA 99164, USA
| | - Girish M Ganjyal
- School of Food Science, Washington State University, Pullman, WA 99164, USA.
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65
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Sarah K, Ulrich H. Short timescale wetting and penetration on porous sheets measured with ultrasound, direct absorption and contact angle. RSC Adv 2018; 8:12861-12869. [PMID: 35541263 PMCID: PMC9079626 DOI: 10.1039/c8ra01434e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/26/2018] [Indexed: 12/29/2022] Open
Abstract
In this study the short timescale penetration and spreading of liquids on porous sheets is investigated. Three measurement techniques are evaluated: ultrasonic liquid penetration measurement (ULP), contact angle measurement (CA) and scanning absorptiometry (SA). With each of these techniques liquid penetration as well as surface wetting can be measured. A quantitative comparison between the methods is carried out. For our studies we are using model liquids with tuneable surface tension, viscosity and surface energy which are the governing parameters for pore flow according to the Lucas–Washburn equation. Scanning absorptiometry turns out to be an adequate tool for direct measurement for liquid penetration. Ultrasonic liquid penetration showed a stable correlation (R2 = 0.70) to SA and thus also gives a suitable indication on the liquid penetration behaviour. Absorption of individual microliter drops measured in the CA instrument showed different results than the other two measurements. For characterisation of the wetting behaviour the measurement techniques gave substantially different results. We thus conclude that ULP and SA do not capture the wetting behaviour of liquids on paper in the same way as conventional contact angle measurement, it is unclear if their results are meaningful. Finally we are proposing two parameters indicating a combination of liquid penetration and wetting, the slope of the contact angle over time dθ/dt and a contact angle calculated from SA. These two parameters are moderately correlated, supporting the idea that they are indeed capturing a combination of liquid penetration and wetting. While our investigations are restricted to paper, we believe that the methods investigated here are generally applicable to study liquid absorption in thin porous media like microfluidic paper based analytical devices, thin porous storage media, membranes and the like. Our findings are highlighting the importance to have a match in timescale (time for penetration and wetting) and size scale (liquid amount supplied) between the testing method and the actual use case of the material, when analyzing wetting and penetration on porous materials. Liquid penetration and wetting on thin, porous media is studied using three different measurement methods, and using testing liquids with tailored viscosity, polarity and surface tension.![]()
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Affiliation(s)
- Krainer Sarah
- Institute of Paper, Pulp and Fiber Technology
- TU Graz
- 8010 Graz
- Austria
- CD Laboratory for Fiber Swelling and Paper Performance
| | - Hirn Ulrich
- Institute of Paper, Pulp and Fiber Technology
- TU Graz
- 8010 Graz
- Austria
- CD Laboratory for Fiber Swelling and Paper Performance
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66
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Amin FR, Khalid H, Zhang H, Rahman SU, Zhang R, Liu G, Chen C. Pretreatment methods of lignocellulosic biomass for anaerobic digestion. AMB Express 2017; 7:72. [PMID: 28353158 PMCID: PMC5371168 DOI: 10.1186/s13568-017-0375-4] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 03/21/2017] [Indexed: 11/10/2022] Open
Abstract
Agricultural residues, such as lignocellulosic materials (LM), are the most attractive renewable bioenergy sources and are abundantly found in nature. Anaerobic digestion has been extensively studied for the effective utilization of LM for biogas production. Experimental investigation of physiochemical changes that occur during pretreatment is needed for developing mechanistic and effective models that can be employed for the rational design of pretreatment processes. Various-cutting edge pretreatment technologies (physical, chemical and biological) are being tested on the pilot scale. These different pretreatment methods are widely described in this paper, among them, microaerobic pretreatment (MP) has gained attention as a potential pretreatment method for the degradation of LM, which just requires a limited amount of oxygen (or air) supplied directly during the pretreatment step. MP involves microbial communities under mild conditions (temperature and pressure), uses fewer enzymes and less energy for methane production, and is probably the most promising and environmentally friendly technique in the long run. Moreover, it is technically and economically feasible to use microorganisms instead of expensive chemicals, biological enzymes or mechanical equipment. The information provided in this paper, will endow readers with the background knowledge necessary for finding a promising solution to methane production.
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67
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Gao C, Xiao W, Ji G, Zhang Y, Cao Y, Han L. Regularity and mechanism of wheat straw properties change in ball milling process at cellular scale. BIORESOURCE TECHNOLOGY 2017; 241:214-219. [PMID: 28570886 DOI: 10.1016/j.biortech.2017.04.115] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 04/26/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
To investigate the change of structure and physicochemical properties of wheat straw in ball milling process at cellular scale, a series of wheat straws samples with different milling time were produced using an ultrafine vibration ball mill. A multitechnique approach was used to analyze the variation of wheat straw properties. The results showed that the characteristics of wheat straw powder displayed regular changes as a function of the milling time, i.e., the powder underwent the inversion of breakage to agglomerative regime during wheat straw ball milling process. The crystallinity index, bulk density and water retention capacity of wheat straw were exponential relation with ball milling time. Moreover, ball milling continually converted macromolecules of wheat straw cell wall into water-soluble substances resulting in the water extractives proportional to milling time.
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Affiliation(s)
- Chongfeng Gao
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Weihua Xiao
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Guanya Ji
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Yang Zhang
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Yaoyao Cao
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China
| | - Lujia Han
- College of Engineering, China Agricultural University, Box 191, Beijing 100083, China.
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68
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Rajaonarivony RK, Rouau X, Dascalescu L, Mayer-Laigle C. Electrostatic separation of mineral and vegetal powders with a custom built corona separator: application to biorefinery of rice husk. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201714013020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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69
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Billès E, Coma V, Peruch F, Grelier S. Water-soluble cellulose oligomer production by chemical and enzymatic synthesis: a mini-review. POLYM INT 2017. [DOI: 10.1002/pi.5398] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Elise Billès
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; Pessac France
| | - Véronique Coma
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; Pessac France
| | - Frédéric Peruch
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; Pessac France
| | - Stéphane Grelier
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; Pessac France
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70
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Varelas V, Langton M. Forest biomass waste as a potential innovative source for rearing edible insects for food and feed – A review. INNOV FOOD SCI EMERG 2017. [DOI: 10.1016/j.ifset.2017.03.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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71
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Brahma S, Weier SA, Rose DJ. Moisture content during extrusion of oats impacts the initial fermentation metabolites and probiotic bacteria during extended fermentation by human fecal microbiota. Food Res Int 2017; 97:209-214. [PMID: 28578043 DOI: 10.1016/j.foodres.2017.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/10/2017] [Accepted: 04/16/2017] [Indexed: 12/31/2022]
Abstract
Extrusion exposes flour components to high pressure and shear during processing, which may affect the dietary fiber fermentability by human fecal microbiota. The objective of this study was to determine the effect of flour moisture content during extrusion on in vitro fermentation properties of whole grain oats. Extrudates were processed at three moisture levels (15%, 18%, and 21%) at fixed screw speed (300rpm) and temperature (130°C). The extrudates were then subjected to in vitro digestion and fermentation. Extrusion moisture significantly affected water-extractable β-glucan (WE-BG) in the extrudates, with samples processed at 15% moisture (lowest) and 21% moisture (highest) having the highest concentration of WE-BG. After the first 8h of fermentation, more WE-BG remained in fermentation media in samples processed at 15% moisture compared with the other conditions. Also, extrusion moisture significantly affected the production of acetate, butyrate, and total SCFA by the microbiota during the first 8h of fermentation. Microbiota grown on extrudates processed at 18% moisture had the highest production of acetate and total SCFA, whereas bacteria grown on extrudates processed at 15% and 18% moisture had the highest butyrate production. After 24h of fermentation, samples processed at 15% moisture supported lower Bifidobacterium counts than those produced at other conditions, but had among the highest Lactobacillus counts. Thus, moisture content during extrusion significantly affects production of fermentation metabolites by the gut microbiota during the initial stages of fermentation, while also affecting probiotic bacteria counts during extended fermentation.
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Affiliation(s)
- Sandrayee Brahma
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Steven A Weier
- The Food Processing Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Devin J Rose
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA; Department of Agronomy & Horticulture, University of Nebraska-Lincoln, Lincoln, NE, USA.
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72
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Ziemiński K, Kowalska-Wentel M. Effect of Different Sugar Beet Pulp Pretreatments on Biogas Production Efficiency. Appl Biochem Biotechnol 2017; 181:1211-1227. [PMID: 27766539 PMCID: PMC5325866 DOI: 10.1007/s12010-016-2279-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 10/04/2016] [Indexed: 11/25/2022]
Abstract
The objective of this study was to determine the effect of different sugar beet pulp (SBP) pretreatments on biogas yield from anaerobic digestion. SBP was subjected to grinding, thermal-pressure processing, enzymatic hydrolysis, or combination of these pretreatments. It was observed that grinding of SBP to 2.5-mm particles resulted in the cumulative biogas productivity of 617.2 mL/g volatile solids (VS), which was 20.2 % higher compared to the biogas yield from the not pretreated SBP, and comparable to that from not ground, enzymatically hydrolyzed SBP. The highest cumulative biogas productivity, 898.7 mL/g VS, was obtained from the ground, thermal-pressure pretreated and enzymatically hydrolyzed SBP. The latter pretreatment variant enabled to achieve the highest glucose concentration (24.765 mg/mL) in the enzymatic hydrolysates. The analysis of energy balance showed that the increase in the number of SBP pretreatment operations significantly reduced the gain of electric energy.
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Affiliation(s)
- Krzysztof Ziemiński
- Faculty of Biotechnology and Food Sciences, Institute of Fermentation Technology and Microbiology, Lodz University of Technology, 171/173 Wolczanska Str, 90-9254, Lodz, Poland.
| | - Monika Kowalska-Wentel
- Faculty of Biotechnology and Food Sciences, Institute of Fermentation Technology and Microbiology, Lodz University of Technology, 171/173 Wolczanska Str, 90-9254, Lodz, Poland
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73
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Galkin M, Di Francesco D, Edlund U, Samec JSM. Sustainable sources need reliable standards. Faraday Discuss 2017; 202:281-301. [DOI: 10.1039/c7fd00046d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review discusses the challenges within the research area of modern biomass fractionation and valorization. The current pulping industry focuses on pulp production and the resulting cellulose fiber. Hemicellulose and lignin are handled as low value streams for process heat and the regeneration of process chemicals. The paper and pulp industry have therefore developed analytical techniques to evaluate the cellulose fiber, while the other fractions are given a low priority. In a strive to also use the hemicellulose and lignin fractions of lignocellulosic biomass, moving towards a biorefining concept, there are severe shortcomings with the current pulping techniques and also in the analysis of the biomass. Lately, new fractionation techniques have emerged which valorize a larger extent of the lignocellulosic biomass. This progress has disclosed the shortcomings in the analysis of mainly the hemicellulose and lignin structure and properties. To move the research field forward, analytical tools for both the raw material, targeting all the wood components, and the generated fractions, as well as standardized methods for evaluating and reporting yields are desired. At the end of this review, a discourse on how such standardizations can be implemented is given.
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Affiliation(s)
- Maxim V. Galkin
- Department of Organic Chemistry
- Stockholm University
- Stockholm
- Sweden
| | | | - Ulrica Edlund
- Fiber and Polymer Technology
- Royal Institute of Technology (KTH)
- SE-100 44 Stockholm
- Sweden
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74
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He Z, Wang Z, Zhao Z, Yi S, Mu J, Wang X. Influence of ultrasound pretreatment on wood physiochemical structure. ULTRASONICS SONOCHEMISTRY 2017; 34:136-141. [PMID: 27773229 DOI: 10.1016/j.ultsonch.2016.05.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 06/06/2023]
Abstract
As an initial step to increase the use of renewable biomass resources, this study was aimed at investigating the effects of ultrasound pretreatment on structural changes of wood. Samples were pretreated by ultrasound with the power of 300W and frequency of 28kHz in aqueous soda solution, aqueous acetic acid, or distilled water, then pretreated and control samples were characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The results shown that ultrasound pretreatment is indeed effective in modifying the physiochemical structure of eucalyptus wood; the pretreatment decreased the quantity of alkali metals (e.g., potassium, calcium and magnesium) in the resulting material. Compared to the control group, the residual char content of samples pretreated in aqueous soda solution increased by 10.08%-20.12% and the reaction temperature decreased from 361°C to 341°C, however, in samples pretreated by ultrasound in acetic solution or distilled water, the residual char content decreased by 12.40%-21.45% and there were no significant differences in reactivity apart from a slightly higher maximum reaction rate. Ultrasound pretreatment increased the samples' crystallinity up to 35.5% and successfully removed cellulose, hemicellulose, and lignin from the samples; the pretreatment also increased the exposure of the sample to the treatment solutions, broke down sample pits, and generated collapses and microchannels on sample pits, and removed attachments in the samples.
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Affiliation(s)
- Zhengbin He
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China.
| | - Zhenyu Wang
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China
| | - Zijian Zhao
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China
| | - Songlin Yi
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China.
| | - Jun Mu
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China
| | - Xiaoxu Wang
- Beijing Key Laboratory of Wood Science and Engineering, College of Material Science and Technology, Beijing Forestry University, Beijing, PR China
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75
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Effect of ball milling on the production of nanocellulose using mild acid hydrolysis method. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.11.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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76
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Jiang J, Wang J, Zhang X, Wolcott M. Evaluation of physical structural features on influencing enzymatic hydrolysis efficiency of micronized wood. RSC Adv 2016. [DOI: 10.1039/c6ra22371k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Enzymatic hydrolysis of lignocellulosic biomass is highly dependent on the changes in structural features after pretreatment.
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Affiliation(s)
- Jinxue Jiang
- Composite Materials and Engineering Center
- Washington State University
- Pullman
- USA
| | - Jinwu Wang
- Forest Products Laboratory
- United States Department of Agriculture Forest Service
- Orono
- USA
| | - Xiao Zhang
- Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Richland
- USA
| | - Michael Wolcott
- Composite Materials and Engineering Center
- Washington State University
- Pullman
- USA
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77
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Zhang H, Chen L, Lu M, Li J, Han L. A novel film-pore-surface diffusion model to explain the enhanced enzyme adsorption of corn stover pretreated by ultrafine grinding. BIOTECHNOLOGY FOR BIOFUELS 2016; 9:181. [PMID: 27579144 PMCID: PMC5004277 DOI: 10.1186/s13068-016-0602-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 08/19/2016] [Indexed: 05/15/2023]
Abstract
BACKGROUND Ultrafine grinding is an environmentally friendly pretreatment that can alter the degree of polymerization, the porosity and the specific surface area of lignocellulosic biomass and can, thus, enhance cellulose hydrolysis. Enzyme adsorption onto the substrate is a prerequisite for the enzymatic hydrolysis process. Therefore, it is necessary to investigate the enzyme adsorption properties of corn stover pretreated by ultrafine grinding. RESULTS The ultrafine grinding pretreatment was executed on corn stover. The results showed that ultrafine grinding pretreatment can significantly decrease particle size [from 218.50 μm of sieve-based grinding corn stover (SGCS) to 17.45 μm of ultrafine grinding corn stover (UGCS)] and increase the specific surface area (SSA), pore volume (PV) and surface composition (SSA: from 1.71 m(2)/g of SGCS to 2.63 m(2)/g of UGCS, PV: from 0.009 cm(3)/g of SGCS to 0.024 m(3)/g of UGCS, cellulose surface area: from 168.69 m(2)/g of SGCS to 290.76 m(2)/g of UGCS, lignin surface area: from 91.46 m(2)/g of SGCS to 106.70 m(2)/g of UGCS). The structure and surface composition changes induced by ultrafine grinding increase the enzyme adsorption capacity from 2.83 mg/g substrate of SGCS to 5.61 mg/g substrate of UGCS. A film-pore-surface diffusion model was developed to simultaneously predict the enzyme adsorption kinetics of both the SGCS and UGCS. Satisfactory predictions could be made with the model based on high R (2) and low RMSE values (R (2) = 0.95 and RMSE = 0.16 mg/g for the UGCS, R (2) = 0.93 and RMSE = 0.09 mg/g for the SGCS). The model was further employed to analyze the rate-limiting steps in the enzyme adsorption process. Although both the external-film and internal-pore mass transfer are important for enzyme adsorption on the SGCS and UGCS, the UGCS has a lower internal-pore resistance compared to the SGCS. CONCLUSIONS Ultrafine grinding pretreatment can enhance the enzyme adsorption onto corn stover by altering structure and surface composition. The film-pore-surface diffusion model successfully captures features on enzyme adsorption on ultrafine grinding pretreated corn stover. These findings identify wherein the probable rate-limiting factors for the enzyme adsorption reside and could, therefore, provide a basis for enhanced cellulose hydrolysis processes.
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Affiliation(s)
- Haiyan Zhang
- College of Engineering, China Agricultural University (East Campus), P.O. Box 191, 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing, 100083 People’s Republic of China
| | - Longjian Chen
- College of Engineering, China Agricultural University (East Campus), P.O. Box 191, 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing, 100083 People’s Republic of China
| | - Minsheng Lu
- College of Engineering, China Agricultural University (East Campus), P.O. Box 191, 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing, 100083 People’s Republic of China
| | - Junbao Li
- College of Engineering, China Agricultural University (East Campus), P.O. Box 191, 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing, 100083 People’s Republic of China
| | - Lujia Han
- College of Engineering, China Agricultural University (East Campus), P.O. Box 191, 17 Qing-Hua-Dong-Lu, Hai-Dian District, Beijing, 100083 People’s Republic of China
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78
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Xin D, Yang M, Chen X, Zhang J. The access of Trichoderma reesei 6A to cellulose is blocked by isolated hemicelluloses and their derivatives in biomass hydrolysis. RSC Adv 2016. [DOI: 10.1039/c6ra14617a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mannan inhibited action of CBHII from Trichoderma reesei by retarding the adsorption of CBHII to cellulose.
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Affiliation(s)
- Donglin Xin
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Ming Yang
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Xiang Chen
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
| | - Junhua Zhang
- College of Forestry
- Northwest A&F University
- Yangling 712100
- China
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79
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Yan B, Shao G, Li K, Ma Y, Wei L, Zhao D. Thermodynamic screening of lignin dissolution in 1-butyl-3-methylimidazolium acetate–water mixtures. RSC Adv 2016. [DOI: 10.1039/c5ra23596k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Lignin dissolution in [C4mim]OAc–water mixtures is an exothermal process. Adding water facilitates the mixtures to reach thermodynamic stable state.
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Affiliation(s)
- Bing Yan
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
| | - Guolin Shao
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
| | - Kunlan Li
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
| | - Yingchong Ma
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
| | - Ligang Wei
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
| | - Deyang Zhao
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian
- China
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80
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Alemahdi N, Che Man H, Abd Rahman N, Nasirian N, Yang Y. Enhanced mesophilic bio-hydrogen production of raw rice straw and activated sewage sludge by co-digestion. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2015; 40:16033-16044. [DOI: 10.1016/j.ijhydene.2015.08.106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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81
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Motte JC, Delenne JY, Rouau X, Mayer-Laigle C. Mineral-vegetal co-milling: An effective process to improve lignocellulosic biomass fine milling and to increase interweaving between mixed particles. BIORESOURCE TECHNOLOGY 2015; 192:703-710. [PMID: 26094197 DOI: 10.1016/j.biortech.2015.06.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 06/04/2015] [Accepted: 06/05/2015] [Indexed: 06/04/2023]
Abstract
Fine-milling is a crucial objective for lignocellulosic biomass valorization. Co-milling appears to be a promising technique to improve its efficiency. However, the mechanisms occurring while co-milling remain poorly understood. In this study, an experimental work was performed to produce co-milled powders from both lignocellulosic (wheat, straw or pine sawdust) and mineral materials (limestone, quartzite or tile) with very contrasted physicochemical properties. The main consequences of co-milling were studied for both materials. A two-component mixing law for the prediction of the blend properties was proposed (particle sizes and true densities) to highlight the gain of this single processing step compared to separate milling and mixing. The predicted values were compared with experimental data for co-milled powders at 7 biomass contents from 0% to 100%. In all cases, co-milling leads to a reduction in particle size of lignocellulosic materials and create strong interweaving with mineral particles.
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Affiliation(s)
- J-C Motte
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes, INRA-CIRAD-SupAgro-Universite de Montpellier, 2 Place Pierre Viala, 34060 Montpellier Cedex 1, France
| | - J-Y Delenne
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes, INRA-CIRAD-SupAgro-Universite de Montpellier, 2 Place Pierre Viala, 34060 Montpellier Cedex 1, France
| | - X Rouau
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes, INRA-CIRAD-SupAgro-Universite de Montpellier, 2 Place Pierre Viala, 34060 Montpellier Cedex 1, France
| | - C Mayer-Laigle
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes, INRA-CIRAD-SupAgro-Universite de Montpellier, 2 Place Pierre Viala, 34060 Montpellier Cedex 1, France.
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82
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83
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Kaufman Rechulski MD, Käldström M, Richter U, Schüth F, Rinaldi R. Mechanocatalytic Depolymerization of Lignocellulose Performed on Hectogram and Kilogram Scales. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00224] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Mats Käldström
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, D-45470 Mülheim
an der Ruhr, Germany
| | - Udo Richter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, D-45470 Mülheim
an der Ruhr, Germany
| | - Ferdi Schüth
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, D-45470 Mülheim
an der Ruhr, Germany
| | - Roberto Rinaldi
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, D-45470 Mülheim
an der Ruhr, Germany
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84
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Barakat A, Jérôme F, Rouau X. A dry platform for separation of proteins from biomass-containing polysaccharides, lignin, and polyphenols. CHEMSUSCHEM 2015; 8:1161-1166. [PMID: 25760796 DOI: 10.1002/cssc.201403473] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Indexed: 06/04/2023]
Abstract
License to mill: Proteins were continuously extracted from polysaccharides, lignin, and polyphenol by combining ultrafine milling with electrostatic separation. Such a fractionation process does not involve any solvent, catalyst, or external source of heating. In addition, this dry process is compatible with downstream enzymatic reactions, thus opening an attractive route for producing valuable chemicals from biomass.
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Affiliation(s)
- Abdellatif Barakat
- INRA, UMR 1208 Ingénierie des Agropolymères et Technologies Emergentes (IATE), 2 Pierre Viala, Montpellier F-34060 (France).
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85
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Sambusiti C, Licari A, Solhy A, Aboulkas A, Cacciaguerra T, Barakat A. One-Pot dry chemo-mechanical deconstruction for bioethanol production from sugarcane bagasse. BIORESOURCE TECHNOLOGY 2015; 181:200-206. [PMID: 25656863 DOI: 10.1016/j.biortech.2015.01.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/12/2015] [Accepted: 01/13/2015] [Indexed: 06/04/2023]
Abstract
The aim of this study was the application of an innovative dry chemo-mechanical pretreatment using different mechanical stresses to produce bioethanol from sugarcane bagasse (SB). The effect of different milling methods on physicochemical composition, enzymatic hydrolysis, bioethanol production and energy efficiency was also evaluated. SB was pretreated with NaOH and H3PO4 at high materials concentration (5 kg/L). Results indicate that vibratory milling (VBM) was more effective in the reduction of particles size and cellulose crystallinity compared to centrifugal (CM) and ball (BM) milling. NaOH pretreatment coupling to BM and VBM was preferred to enhance glucose yields and bioethanol production, while CM consumed less energy compared to BM and VBM. Moreover, the highest energy efficiency (η=0.116 kg glucose/kWh) was obtained with NaOH-CM. Therefore, the combination of dry NaOH and CM appears the most suitable and interesting pretreatment for the production of bioethanol from SB.
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Affiliation(s)
- C Sambusiti
- INRA, UMR 1208, Ingénierie des Agropolymères et Technologies Emergentes (IATE), 2, Place Pierre Viala, 34060 Montpellier cedex1, France
| | - A Licari
- INRA, UMR 1208, Ingénierie des Agropolymères et Technologies Emergentes (IATE), 2, Place Pierre Viala, 34060 Montpellier cedex1, France
| | - A Solhy
- Université Mohammed VI Polytechnique, Lot 660 - Hay Moulay Rachid, 43150 Ben Guerir, Morocco
| | - A Aboulkas
- Laboratoire Interdisciplinaire de Recherche en Sciences et Techniques, Faculté Polydisciplinaire de Béni-Mellal, Université Sultan Moulay Slimane, BP 592, 23000 Béni-Mellal, Morocco
| | - T Cacciaguerra
- Institut Charles Gerhardt de Montpellier- MACS UMR 5253 8, rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - A Barakat
- INRA, UMR 1208, Ingénierie des Agropolymères et Technologies Emergentes (IATE), 2, Place Pierre Viala, 34060 Montpellier cedex1, France.
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