Analysis of soluble and insoluble fractions of alkali and subcritical water treated sugarcane bagasse

Ju, Yi‐Hsu; Huynh, Lien-Huong; Kasim, Novy S.; Guo, Ting-Jiang; Wang, Jen-Huo; Fazary, Ahmed E.

doi:10.1016/j.carbpol.2010.08.022

Cited by 61 publications

(38 citation statements)

References 47 publications

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“…Carbon contents in raw bagasse were at 48.3 wt% and upon HTL treatment, 50.1 wt% of the carbon (Table 1) was liquefied in the form of soluble saccharides. Previous studies have shown comparable carbon content in the extract at 45.7 wt% (Ju et al, 2011;Savou et al, 2019). Mostly, the carbons are hydrolysed from hemicellulosic sugars and amorphous cellulose in their oligomeric structures.…”

Section: Ft-ir and Chn Analysis Of The Bagasse Extract From Htlmentioning

confidence: 84%

“…For the 3% initial solid concentration used in this study, 47.4% of bagasse was solubilised and 52.6% remained as insoluble solids. Santucci et al (2015) extracted only 27% of the initial mass at 160°C which was low while others have contrasting findings with 60-85% extracted after HTL treatment (Ju et al, 2011;Carvalho et al, 2015). HTL as green technology is not standardised with a combination of parameters required for effective extraction or liquefaction.…”

Section: Effect Of Htl Pre-treatment On Bagasse Extractionmentioning

confidence: 94%

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Potential of bagasse obtained using hydrothermal liquefaction pre‐treatment as a natural emulsifier

Vodo

Taarji

Bouhoute

et al. 2020

Int J of Food Sci Tech

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Summary Bagasse, a by‐product from raw sugar factories, is conventionally burned for energy production. In this study, bagasse extracts from hydrothermal liquefaction (HTL) treatment (160 °C, 1 MPa and 30 min) with a carbohydrate content of 510.3 mg g−1 and 0.5 mg g−1 of total phenols were applied as emulsifiers in oil‐in‐water (O/W) emulsions. Bagasse extracts from HTL (0.5–4 wt%) lowered the interfacial tension between oil–water interphase from 19.8 to 14.0 mN m−1, owing possibly to the surface‐active hydrophilic carbohydrate‐hydrophobic lignin complexes in the extracts (lignin content: 7.1% w/w). Emulsions stabilised by bagasse extracts from HTL with average droplet size, dav of 0.79 μm were comparable with gum arabic (GA), dav of 2.24 μm after 11 days at 25 °C. Bagasse extracts containing biopolymers have the potential for industrial applications involving emulsion systems; therefore, HTL treatment of bagasse without any solvents can be regarded as an effective tool for producing natural emulsifiers.

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Section: Ft-ir and Chn Analysis Of The Bagasse Extract From Htlmentioning

confidence: 84%

Section: Effect Of Htl Pre-treatment On Bagasse Extractionmentioning

confidence: 94%

Potential of bagasse obtained using hydrothermal liquefaction pre‐treatment as a natural emulsifier

Vodo

Taarji

Bouhoute

et al. 2020

Int J of Food Sci Tech

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“…For this reason, it increases the porosity, reactivity, and accessibility of the remaining feedstock towards, for example, chemical pulping, and enzymatic hydrolysis (Minor and Springer 1993;Hu et al 2008;McIntosh and Vancov 2010;Ju et al 2011;Chen et al 2013;Kallioinen et al 2013). The mechanism of the alkaline hydrolysis has been suggested to be the saponification of the intermolecular ester bonds crosslinking hemicelluloses and lignin (Sun and Cheng 2002).…”

Section: Alkaline Pretreatmentsmentioning

confidence: 99%

Chemical Pretreatments of Wood Chips Prior to Alkaline Pulping - A Review of Pretreatment Alternatives, Chemical Aspects of the Resulting Liquors, and Pulping Outcomes

Lehto

Alén

2015

BioResources

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The chemical industry is being forced to evaluate new strategies for more effective utilization of renewable feedstocks to diminish the use of fossil resources. In this literature review, the integration of both acidic and alkaline pretreatment phases of hardwood and softwood chips with chemical pulping is discussed. Depending on the pretreatment conditions, high-volume sulfur-free fractions with varying chemical compositions can be produced. In case of acidic pretreatments, the major products include carbohydrates (mono-, oligo-, and polysaccharides), whereas under alkaline (i.e., aqueous NaOH) pretreatment conditions, the sulfur-free fractions of aliphatic carboxylic acids, lignin, and extractives are primarily obtained. All these fractions are potentially interesting groups of compounds and can be used in a number of applications. Finally, the effects of pretreatments on pulping are also considered. Although it is believed that there are important advantages to be gained by integrating this type of renewable raw material-based production, in particular, with kraft pulping, sulfur-free pulping methods such as soda-AQ and oxygen/alkali delignification processes are also briefly discussed.

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“…Among biomass from agricultural waste, sugarcane bagasse is one of the abundant agricultural waste with great potential for transformation into energy and chemical feedstock (Ju et al 2010). Generally, during the extraction process in sugar factories, about 280 kg or about 30% of wet bagasse is produced from 1 ton of sugarcane (Rodrigues et al 2003;Sun et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Most of those were focused only on pretreatment of the material for fractionation of the three main lignocellulosic polymers (Allen et al 1996;Sasaki, Adschiri, and Arai 2003) for bioethanol feedstock (Cardona, Quintero, and Paz 2010;Ju et al 2010) and for sugar production (Laser et al 2002). Allen et al (1996) and Sasaki, Adschiri, and Arai (2003) determined the decomposition temperature of sugarcane bagasse using a percolator-type reactor.…”

Section: Introductionmentioning

confidence: 99%

The Hot Compressed Water Treatment of Solid Waste Material from the Sugar Industry for Valuable Chemical Production

Iryani

Kumagai

Nonaka

et al. 2013

International Journal of Green Energy

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Sugarcane bagasse, the solid waste material produced in the sugar industry, was subjected to treatment in hot compressed water. The experiments were performed in a batch-type reactor containing slurry of 10 ml of water and 1.2 g of solids. The reactor was heated to temperatures ranging between 200 • C and 300 • C for reaction times of 3 to 30 min. The product was separated into liquid and solid fractions. Each fraction was analyzed to investigate the alteration of the main lignocellulosic polymers by hot compressed water. Results for the liquid fractions showed that increased temperatures and reaction times completely dissolved hemicellulose and cellulose in the water, leaving lignin in the solid product. During treatment, hemicellulose and cellulose gradually decomposed into simple sugars, which were then degraded and decomposed into furfural, 5-(hydroxymethyl)furfural (5-HMF) and organic acids. However, the yield of furans and some organic acids decreased and became undetectable at 300 • C and with increasing reaction time. The solid fraction was also characterized before and after treatment. Results showed that the hydrogen and oxygen content of the solids decreased with increased reaction conditions, due to dehydration and decarboxylation reactions. The reactions also increased the carbon content of the treatment products by 1.2-1.6 times that in the raw material, suggesting that the hot compressed water treatment of sugarcane bagasse can be considered for the provision of valuable chemicals for biofuel and high-carbon-content material (biochar).

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Analysis of soluble and insoluble fractions of alkali and subcritical water treated sugarcane bagasse

Cited by 61 publications

References 47 publications

Potential of bagasse obtained using hydrothermal liquefaction pre‐treatment as a natural emulsifier

Potential of bagasse obtained using hydrothermal liquefaction pre‐treatment as a natural emulsifier

Chemical Pretreatments of Wood Chips Prior to Alkaline Pulping - A Review of Pretreatment Alternatives, Chemical Aspects of the Resulting Liquors, and Pulping Outcomes

The Hot Compressed Water Treatment of Solid Waste Material from the Sugar Industry for Valuable Chemical Production

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