Concurrent production of sodium lignosulfonate and ethanol from bagasse spent liquor

Abdulkhani, Ali; Amiri, Elaheh; Sharifzadeh, Aghil; Hedjazi, Sahab; Alizadeh, Peyman

doi:10.1016/j.jenvman.2018.10.032

Cited by 37 publications

(14 citation statements)

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“…FTIR spectroscopy in the spectral range of 400 to 4000 cm −1 was performed to know about the possible involvement of different functional groups of LS in the reduction process of the silver ions to nanoparticles. The broad absorption spectra, between 3200–3400 cm −1 of LS and LS–Ag NPs, are the characteristic peaks of phenolic hydroxyl groups [ 43 ]. The absorption peaks at 1703 cm −1 and 1604 cm −1 were ascribed to the stretching of C=O in carboxylic acid and its derivatives, whereas the 1510 cm −1 peak is related to the benzene skeleton vibration [ 44 , 45 ].…”

Section: Resultsmentioning

confidence: 99%

Lignin-Mediated Silver Nanoparticle Synthesis for Photocatalytic Degradation of Reactive Yellow 4G and In Vitro Assessment of Antioxidant, Antidiabetic, and Antibacterial Activities

et al. 2022

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This study explored the potential of abundantly available sodium lignosulfonate (LS) as a reducer and fabricating agent in preparing silver nanoparticles (LS–Ag NPs). The operational conditions were optimized to make the synthesis process simpler, rapid, and eco-friendly. The prepared LS–Ag NPs were analyzed via UV–Vis spectroscopy, X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, and high-resolution transmission electron microscopy. Results demonstrated that LS–Ag NPs were of crystalline structure, capped with LS constituents, and spherical in shape with a size of approximately 20 nm. Under optimized conditions, LS–Ag NPs exhibited significant photocatalytic activity in Reactive Yellow 4G degradation. The effects of photocatalyst (LS–Ag NPs) dosage, dye concentration, and its reusability for dye degradation were studied to make the process practically applicable in textile wastewater treatment. Additionally, the synthesized LS–Ag NPs displayed significant free radical scavenging against 2-diphenyl-1-picrylhydrazyl (DPPH) with an IC50 value of (50.2 ± 0.70 µg/mL) and also exhibited antidiabetic activity in terms of inhibition in the activity of carbohydrate-degrading marker enzyme α-glucosidase with an IC50 value of (58.1 ± 0.65 µg/mL). LS–Ag NPs showed substantial antibacterial potential against pathogenic strains, namely E. coli and S. aureus. In conclusion, LS–Ag NPs can be a reliable and eco-friendly material for their possible application in the treatment of dye-containing wastewater and have a great perspective in the biomedical and pharmaceutical sectors.

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Section: Resultsmentioning

confidence: 99%

Lignin-Mediated Silver Nanoparticle Synthesis for Photocatalytic Degradation of Reactive Yellow 4G and In Vitro Assessment of Antioxidant, Antidiabetic, and Antibacterial Activities

et al. 2022

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“…Characterization studies have shown that lignosulfonates have high molecular weight and contain high amounts of sulfonate groups. Both of these properties are crucial in determining their dispersing efficiency and use for other applications [8][9][10][11]. Controlling the molecular weight of lignosulfonates can be done by various techniques, such as separation, depolymerization, and chemical modification [12].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Wood-based Industrial Biorefinery Lignosulfonates and Supercritical Water Hydrolysis Lignin

Hemmilä

Hosseinpourpia

Αδαμόπουλος

et al. 2019

Waste Biomass Valor

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Understanding the properties of any particular biorefinery or pulping residue lignin is crucial when choosing the right lignin for the right end use. In this paper, three different residual lignin types [supercritical water hydrolysis lignin (SCWH), ammonium lignosulfonate (A-LS), and sodium lignosulfonate (S-LS)] were evaluated for their chemical structure, thermal properties and water vapor adsorption behavior. SCWH lignin was found to have a high amount of phenolic hydroxyl groups and the highest amount of β-O-4 linkages. Combined with a low ash content, it shows potential to be used for conversion into aromatic or platform chemicals. A-LS and S-LS had more aliphatic hydroxyl groups, aliphatic double bonds and C=O structures. All lignins had available C3/C5 positions, which can increase reactivity towards adhesive precursors. The glass transition temperature (Tg) data indicated that the SCWH and S-LS lignin types can be suitable for production of carbon fibers. Lignosulfonates exhibited considerable higher water vapor adsorption as compared to the SCWH lignin. In conclusion, this study demonstrated that the SCWH differed greatly from the lignosulfonates in purity, chemical structure, thermal stability and water sorption behavior. SCWH lignin showed great potential as raw material for aromatic compounds, carbon fibers, adhesives or polymers. Lignosulfonates are less suited for conversion into chemicals or carbon fibers, but due to the high amount of aliphatic hydroxyl groups, they can potentially be modified or used as adhesives, dispersants, or reinforcement material in polymers. For most value-adding applications, energy-intensive purification of the lignosulfonates would be required. Graphic Abstract

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“…However, these routes bear also challenges, as other fruit components, such as d-limonene, can act as fermentation inhibitors. [25] The limonene fraction can be valorized as monomer or monomer precursor, as discussed in Sections 3. waste streams from FLW, which can be processed in sugar hydrolysates, can be used to produce 2G ethanol, e.g., pulping residues from bagasse, [422] crop husks, [423] or other agricultural residues. [424] In general, lignocelluloses, such as straw, are liquefied by enzymes to produce soluble sugar, a lignin fraction, and nonsoluble residues, with the possibility for the latter two to be burnt for energy generation or for valorizing the isolation of biocolloids (Section 3.1) or biopolymers (Section 3.2).…”

Section: Monomers From Flw Fermentationmentioning

confidence: 99%

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

et al. 2021

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The most recent strategies available for upcycling agri‐food losses and waste (FLW) into functional bioplastics and advanced materials are reviewed and the valorization of food residuals are put in perspective, adding to the water–food–energy nexus. Low value or underutilized biomass, biocolloids, water‐soluble biopolymers, polymerizable monomers, and nutrients are introduced as feasible building blocks for biotechnological conversion into bioplastics. The latter are demonstrated for their incorporation in multifunctional packaging, biomedical devices, sensors, actuators, and energy conversion and storage devices, contributing to the valorization efforts within the future circular bioeconomy. Strategies are introduced to effectively synthesize, deconstruct and reassemble or engineer FLW‐derived monomeric, polymeric, and colloidal building blocks. Multifunctional bioplastics are introduced considering the structural, chemical, physical as well as the accessibility of FLW precursors. Processing techniques are analyzed within the fields of polymer chemistry and physics. The prospects of FLW streams and biomass surplus, considering their availability, interactions with water and thermal stability, are critically discussed in a near‐future scenario that is expected to lead to next‐generation bioplastics and advanced materials.

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Concurrent production of sodium lignosulfonate and ethanol from bagasse spent liquor

Cited by 37 publications

References 50 publications

Lignin-Mediated Silver Nanoparticle Synthesis for Photocatalytic Degradation of Reactive Yellow 4G and In Vitro Assessment of Antioxidant, Antidiabetic, and Antibacterial Activities

Lignin-Mediated Silver Nanoparticle Synthesis for Photocatalytic Degradation of Reactive Yellow 4G and In Vitro Assessment of Antioxidant, Antidiabetic, and Antibacterial Activities

Characterization of Wood-based Industrial Biorefinery Lignosulfonates and Supercritical Water Hydrolysis Lignin

The Food–Materials Nexus: Next Generation Bioplastics and Advanced Materials from Agri‐Food Residues

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