Sugarcane bagasse and leaves: foreseeable biomass of biofuel and bio‐products

Chandel, Anuj K.; Silva, Sílvio Silvério da; Carvalho, Walter; Singh, Om V.

doi:10.1002/jctb.2742

Cited by 348 publications

(172 citation statements)

References 64 publications

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“…Alkali cellulose (5) Cell-OH.NaOH + ClCH 2 COONa  Cell-O-CH 2 CO − + + NaCl + H 2 O Carboxymethyl cellulose (6) NaOH+ Cl-CH 2 COONa  HO-CH 2 COONa + NaCl Sodium glycolate (7) According to Equation 5, Cellulose chains are swollen by Sodium hydroxide as an alkaline reagent (alkali cellulose), which provided the ability of substitution by sodium carboxymethyl groups in cellulose units. (Expose reactive site of anhydroglucose in compact cellulose chain to substitute by ether groups).…”

Section: Degree Of Substitution (Ds)mentioning

confidence: 99%

“…As shown in Figure 1A, DS value augmented by adding NaOH concentration up to a maximum DS of 0.78 for 30% NaOH. At this level of NaOH concentration cellulose etherification (Equation 6) is predominating which produces CMC b as a final product. Above 30% NaOH the DS value decreased.…”

Section: Degree Of Substitution (Ds)mentioning

confidence: 99%

“…[4,5]. Sugarcane bagasse is a residue produced in large quantities every year by the sugar industries [6], and the most of this amount used as a fuel to supply the energy required for sugar mill [7]. Some reports reveal that bagasse is used as a raw material for industrial applications such as electricity generation, pulp and paper production, etc.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and Characterization of Carboxymethyl Cellulose from Sugarcane Bagasse

Asl¹,

Mousavi²,

Labbafi³

2017

J Food Process Technol

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Various raw materials including plant biomass, bacteria, algae and the Tunicates (marine animals) have been used to produce cellulose. However, agricultural waste has rarely been utilized for this purpose. In this work, Sugarcane bagasse was used as raw material to produce cellulose. Cellulose was extracted from sugarcane bagasse through the elimination of lignin and hemicellulose. Cellulose was then converted to carboxymethyl cellulose (CMC b ) by using sodium monochloroacet (SMCA) and various sodium hydroxide (NaOH) concentrations. Fourier Transform Infrared Spectroscopy (FTIR) was applied to verify the effect of NaOH concentration on this property. The highest viscosity and degree of substitution (DS=0.78) were observed in 30 gr/100 ml NaOH of carboxymethylation. Maximum tensile strength of the films produced at these conditions was 37.34 Mpa. The addition of a various amount of glycerol (1 ml/ 100 ml, 2 ml/ 100 ml, 3 ml/ 100 ml) dramatically decreased the tensile strength. The highest level of water vapor permeability was also observed at the same NaOH concentration. Cellulose can be correctly extracted from sugarcane bagasse and converted to carboxymethyl cellulose. Based on the cellulose of the bagasse characteristic, proper amount of NaOH was found to get a high DS. CMC b has considerable features for application on biodegradable coating materials.

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Section: Degree Of Substitution (Ds)mentioning

confidence: 99%

Section: Degree Of Substitution (Ds)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Characterization of Carboxymethyl Cellulose from Sugarcane Bagasse

Asl¹,

Mousavi²,

Labbafi³

2017

J Food Process Technol

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“…This study considers the sugarcane mills operating in one of the sugarcane producing states in Brazil, and their upgrading into biorefineries for producing bioelectricity and/or second generation (2G) ethanol using sugarcane biomass. Sugarcane bagasse and leaves/trash can be used in the production of bio-products [25] but the utilization of sugarcane biomass for non-energy production is beyond the scope of this paper. The study investigates the best technological optionssecond generation (2G) ethanol (2G option) or bioelectricity (electricity option) -for converting sugarcane biomass to useful energy products.…”

Section: Introductionmentioning

confidence: 99%

Optimizing ethanol and bioelectricity production in sugarcane biorefineries in Brazil

et al. 2016

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a b s t r a c tIn sugarcane biorefineries, the lignocellulosic portion of the sugarcane biomass (i.e. bagasse and cane trash) can be used as fuel for electricity production and/or feedstock for second generation (2G) ethanol. This study presents a techno-economic analysis of upgraded sugarcane biorefineries in Brazil, aiming at utilizing surplus bagasse and cane trash for electricity and/or ethanol production. The study investigates the trade-off on sugarcane biomass use for energy production: bioelectricity versus 2G ethanol production. The BeWhere mixed integer and spatially explicit model is used for evaluating the choice of technological options. Different scenarios are developed to find the optimal utilization of sugarcane biomass. The study finds that energy prices, type of electricity substituted, biofuel support and carbon tax, investment costs, and conversion efficiencies are the major factors influencing the technological choice. At the existing market and technological conditions applied in the upgraded biorefineries, 300 PJ y À1 2G ethanol could be optimally produced and exported to the EU, which corresponds to 2.5% of total transport fuel demand in the EU. This study provides a methodological framework on how to optimize the alternative use of agricultural residues and industrial co-products for energy production in agro-industries considering biomass supply chains, the pattern of domestic energy demand, and biofuel trade.

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“…They contain considerable amounts of cellulose, hemicellulose and pectin, which can be depolymerized by chemicals and/or enzymes into sugar monomers and sugar acids [2] [3]. The sugar streams obtained from leaf hydrolysates can be converted into bioethanol and other valuable products such as xylitol, organic acids, and industrial enzymes [2] [3] [4] [5]. Leaves are good feedstock for bioconversion processes.…”

Section: Introductionmentioning

confidence: 99%

Response Surface Optimization of Enzymatic Hydrolysis of Sugar Beet Leaves into Fermentable Sugars for Bioethanol Production

Aramrueang¹,

Zicari²,

Zhang³

2017

ABB

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Sugar beet leaves are the major crop waste from sugar beet production, while the unused leaves contain a high number of sugars and polysaccharides. The effects of different enzyme products (cellulase, Cellic CTec2; xylanase, Cellic HTec2; and pectinase, Pectinex Ultra SPL) were determined during high-solids enzymatic hydrolysis of sugar beet leaves at 10% total solids (TS) content. Response surface methodology was used to study the effects of enzyme loadings during the hydrolysis of sugar beet leaves for producing fermentable sugars. It was found that both cellulases and pectinases are important enzymes for the hydrolysis of sugar beet leaves. Enzyme loading and reaction time were important factors. Based on the amount of sugars released, a maximum sugar conversion of 82% was achieved after 72 h of hydrolysis using 30 filter paper unit (FPU) g −1 glucan for cellulase and 150 polygalacturonase unit (PGU) g −1 polygalacturonic acid for pectinase, or 37 FPU g −1 glucan for cellulase and 100 PGU g −1 polygalacturonic acid for pectinase. The corresponding sugar yield and sugar concentration were 0.35 g•g −1 TS, and 35 g•l −1 , respectively. Sugar conversion ranged from 59% -70%, 68% -80%, and 74% -82% after 24 h, 48 h, and 72 h of hydrolysis depending on the design conditions.

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Sugarcane bagasse and leaves: foreseeable biomass of biofuel and bio‐products

Cited by 348 publications

References 64 publications

Synthesis and Characterization of Carboxymethyl Cellulose from Sugarcane Bagasse

Synthesis and Characterization of Carboxymethyl Cellulose from Sugarcane Bagasse

Optimizing ethanol and bioelectricity production in sugarcane biorefineries in Brazil

Response Surface Optimization of Enzymatic Hydrolysis of Sugar Beet Leaves into Fermentable Sugars for Bioethanol Production

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