Nanobiotechnological advancements in lignocellulosic biomass pretreatment

Arora, Anju; Nandal, Preeti; Singh, Jatinder; Verma, Madan L.

doi:10.1016/j.mset.2019.12.003

Cited by 65 publications

(47 citation statements)

References 116 publications

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“…All these species are common inhibitors for most of the yeasts used for saccharides fermentation. 164,165 Therefore, as the temperature plays a crucial role in the saccharide yield and purity, the effect of this variable has been carefully studied and reported in the literature. López-Linares et al 133 studied the MA-HTT of brewer's spent grains (BSG) for sugars production.…”

Section: Reaction Temperaturementioning

confidence: 99%

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

2021

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Section: Reaction Temperaturementioning

confidence: 99%

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

2021

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“…Lignocellulosic biomass is the most abundant resource in nature with immense potential for numerous applications [1]. Among different lignocellulosic biomasses, agricultural waste-based biomass consists of cellulose (35-50%), hemicellulose (20-35%), and lignin (10-25%) [2]. Corn (Zea mays) is one of the abundant cereal crops that is cultivated extensively across the world, which produces huge lignocellulosic biomass.…”

Section: Introductionmentioning

confidence: 99%

Conversion of Lignocellulosic Corn Agro-Waste into Cellulose Derivative and Its Potential Application as Pharmaceutical Excipient

et al. 2020

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Lignocellulosic biomass is widely grown in many agricultural-based countries. These are typically incinerated or discarded in open spaces, which further may cause severe health and environmental problems. Hence, the proper utilization and conversion of different parts of lignocellulosic biomasses (e.g., corn wastes derived leave, cob, stalk, and husk) into value-added materials could be a promising way of protecting both health and environments. In addition, they have high-potential for myriads applications (e.g., pharmaceuticals, cosmetics, textiles, and so on). In this context, herein, we isolated holocellulose (a mixture of alpha α, beta β, and gamma γ cellulose) from corn waste, and then it was converted into carboxymethyl cellulose (CMC). Subsequently, the prepared CMC was evaluated successfully to be used as a pharmaceutical excipient. Different characterization tools were employed for structural, morphological, and thermal properties of the extracted holocellulose and synthesized CMC. Results showed that the highest yield of CMC was obtained 187.5% along with the highest degree of substitution (DS i.e., 1.83) in a single stage (i.e., size reduction technique) with the lowest particle size of holocellulose (100 µm). This happened due to the use of a single stage instead of multiple stages. Finally, extracted CMC was successfully used as a pharmaceutical excipient with promising results compared to commercially available pharmaceutical-grade CMC.

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“…Raw materials such as bioethanol and biomaterials are required to produce this alternative renewable energy [2]. Agricultural biomass mainly consists of cellulose (30-50%), hemicellulose (20-40%), lignin (10-30%), and other extractive products [3]. Cellulose is an organic compound that strengthens plants.…”

Section: Introductionmentioning

confidence: 99%

Fractionation and characterization of lignin from sugarcane bagasse using a sulfuric acid catalyzed solvothermal process

Imman

Khongchamnan

Wanmolee

et al. 2020

Preprint

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Background: Conversion of lignocellulosic residue to bioenergy and biofuel is a promising platform for global sustainability. Fractionation is an initial step for isolating lignocellulosic components for subsequent valorization. The aim of this research is to develop the solvothermal fractionation of sugarcane bagasse to produce high purity lignin. Physio-chemical structure of isolated lignin from this process was determined.Results: In this study, a central composite design-based response surface methodology (RSM) was used to optimize an acid promoter for isolating lignin from sugarcane bagasse using a solvothermal fractionation process. The reaction was carried out with sulfuric acid, in the concentration of 0.01-0.02 M and a reaction temperature of 180-200°C for 30-90 min. The optimal conditions for the experiment were obtained at the acid concentration of 0.02 M with a temperature of 180ºC for 90 min in methyl isobutyl ketone (MIBK)/methanol/water (35%:25%:40% v/v%). The results showed that 87.1% of lignin recovery was conducted in the organic phase, while 88.0% of lignin removal was done in the solid phase. Furthermore, the change in the physico-chemical characteristics of solid residue and lignin recovery was recorded using various techniques. A GPC analysis of recovered lignin from the organic fraction showed a low average Mw/Mn (1374/785 g/mol) and lower polydispersity index (1.75) compared to commercial organosolv lignin. The maximum lignin degradation temperatures of recovered lignin and commercial organosolv lignin were estimated to be 310°C and 334°C, which can point to potential relationships with the degradation of β-O-4 cross-links. The results indicated that recovered lignin is mostly cross-linked by the β-O-4 cross-links.Conclusions: The development of sulfuric acid catalyzed solvothermal process in this study provides the efficient extraction of high-value organosolv lignin from sugarcane bagasse and the production of recovered lignin in organic phase with low contamination from other contents. The lignin characteristic data can contribute to the development of lignin valorization in value-added applications.

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Nanobiotechnological advancements in lignocellulosic biomass pretreatment

Cited by 65 publications

References 116 publications

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

Microwave-assisted hydrothermal treatments for biomass valorisation: a critical review

Conversion of Lignocellulosic Corn Agro-Waste into Cellulose Derivative and Its Potential Application as Pharmaceutical Excipient

Fractionation and characterization of lignin from sugarcane bagasse using a sulfuric acid catalyzed solvothermal process

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