Subcritical water hydrolysis of sugarcane bagasse: An approach on solid residues characterization

Lachos‐Perez, Daniel; Martinez-Jimenez, Fernan David; Rezende, Camila A.; Tompsett, Geoffrey A.; Timko, Michaël T.; Forster‐Carneiro, Tânia

doi:10.1016/j.supflu.2015.10.019

Cited by 76 publications

(34 citation statements)

References 48 publications

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“…These results are explained because at temperatures higher 150°C, it starts to occur the hydrolysis of the material. Further, this autohydrolysis process increases the H + and OHions, thereby facilitating the release of sugars compounds (Lachos-Pérez et al, 2016). For treatments 6 and 4, concentrations of 2.58 and 2.77 g/L of fructose and 4.08 and 4.65 g/L of glucose were obtained respectively.…”

Section: Effect Of Autohydrolysis Process On Release Glycosidesmentioning

confidence: 99%

Valorization of pineapple waste for the extraction of bioactive compounds and glycosides using autohydrolysis

Sepúlveda

Romaní

Aguilar

et al. 2018

Innovative Food Science & Emerging Technologies

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Section: Effect Of Autohydrolysis Process On Release Glycosidesmentioning

confidence: 99%

Valorization of pineapple waste for the extraction of bioactive compounds and glycosides using autohydrolysis

Sepúlveda

Romaní

Aguilar

et al. 2018

Innovative Food Science & Emerging Technologies

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“…Subcritical water is an environmentally innocuous, non-toxic, and safe solvent. Besides, it has good transport properties (high diffusion coefficient and thermal conductivity, and low viscosity) and the ionic product of subcritical water increases with temperature and is greater by 1 to 2 orders of magnitude than at ambient temperatures, thus promoting acid-and base-catalyzed reactions as biomass conversion [53].…”

Section: Homogeneous Mineral Acids and Salts In Watermentioning

confidence: 99%

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

et al. 2016

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Levulinic acid (LA) is one of the top bio-based platform molecules that can be converted into many valuable chemicals. It can be produced by acid catalysis from renewable resources, such as sugars, lignocellulosic biomass and waste materials, attractive candidates due to their abundance and environmentally benign nature. The LA transition from niche product to mass-produced chemical, however, requires its production from sustainable biomass feedstocks at low costs, adopting environment-friendly techniques. This review is an up-to-date discussion of the literature on the several catalytic systems that have been developed to produce LA from the different substrates. Special attention has been paid to the recent advancements on starting materials, moving from simple sugars to raw and waste biomasses. This aspect is of paramount importance from a sustainability point of view, transforming wastes needing to be disposed into starting materials for value-added products. This review also discusses the strategies to exploit the solid residues always obtained in the LA production processes, in order to attain a circular economy approach.

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“…Among different processes to convert biomass, the most used routes nowadays and the most promising are physical-chemical processes. However, most technologies (acid, alkaline or enzymatic hydrolysis) demand a significant quantity of chemical products and catalysts, as highlighted by Lachos-Perez et al (2016). As an alternative to these processes, pressurized fluids such as sub/ supercritical water and mixtures of water with ethanol or carbon dioxide (green solvents) have been applied in different biomass conversion processes, obtaining high recovery levels of different bioproducts (Oliveira et al, 2017;Lachos-Perez et al, 2016;Saldaña and Valdivieso-Ramírez, 2015;Relvas et al, 2015;Alvarez et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Continuous or semi-continuous processes have been reported in the literature as an alternative to batch ones for obtaining products of interest from biomass, for example, bio-oil (Oliveira et al, 2017), sugars (Lachos-Perez et al, 2016) and phytochemicals such as phenolics and antioxidant (Alvarez et al, 2014). The main advantage of these processes is the possibility to control independently all the process variables.…”

Section: Introductionmentioning

confidence: 99%

THE USE OF COMPRESSED FLUIDS TO OBTAIN BIOCOMPOSITES FROM PALM OIL FIBER (Elaeis sp.)

Oliveira

Goes

Almeida

et al. 2018

Braz. J. Chem. Eng.

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Empty fruit bunch fiber (EFBF) is a lignocellulosic waste generated by the palm oil agribusiness. The amount of EFBF produced is equal to the oil obtained, and it can be used as raw material to obtain biocomposites. The objective of this work is to fragment the EFBF employing pressurized fluids in a semi-continuous system to obtain different biocomposites. For this, pure water and a mixture of water/carbon dioxide were employed as solvent to obtain sugar monomers and a mixture of compressed water/ethanol (1:1 vol.) to obtain crystalline cellulose. The experiments were conducted in the temperature range of 120 to 240 ºC, using reaction times between 5 and 15 min at 60 bar, and solvent flow rate of 0.75 mL.min -1 . A maximum of 30.47 mg.mL -1 of xylose was obtained at 210 ºC for 15 min of reaction with pure water as solvent. The best condition to obtain crystalline cellulose was 240 ºC for 30 minutes of reaction, obtaining 38.2% of cellulose from palm oil EFBF.

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Subcritical water hydrolysis of sugarcane bagasse: An approach on solid residues characterization

Cited by 76 publications

References 48 publications

Valorization of pineapple waste for the extraction of bioactive compounds and glycosides using autohydrolysis

Valorization of pineapple waste for the extraction of bioactive compounds and glycosides using autohydrolysis

New Frontiers in the Catalytic Synthesis of Levulinic Acid: From Sugars to Raw and Waste Biomass as Starting Feedstock

THE USE OF COMPRESSED FLUIDS TO OBTAIN BIOCOMPOSITES FROM PALM OIL FIBER (Elaeis sp.)

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