Corncob-based biorefinery: A comprehensive review of pretreatment methodologies, and biorefinery platforms

Gandam, Pradeep Kumar; Chinta, Madhavi Latha; Prashanth, Ninian Prem; Velidandi, Aditya; Sharma, Minaxi; Kuhad, Ramesh Chander; Tabatabaei, Meisam; Aghbashlo, Mortaza; Baadhe, Rama Raju; Gupta, Vijai Kumar

doi:10.1016/j.joei.2022.01.004

Cited by 28 publications

(4 citation statements)

References 190 publications

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“…Other authors [39][40][41] suggest the implementation of the biorefinery concept for the recovery of lignocellulosic residues obtained from the agri-food industries, and thus achieve sustainable development based on a circular bioeconomy. In this sense, considering the chemical composition of corncob in natura and the products obtained after its fractionation by means of alkaline treatment, it is suggested that the other fractions obtained in this study, namely the solid fraction, have a great potential for the conversion of chemicals compounds or derivatives following the biorefinery concept.…”

Section: Chemical Composition Of Corn Cob and Hemicellulosic Fraction...mentioning

confidence: 99%

Corncob as Carbon Source in the Production of Xanthan Gum in Different Strains Xanthomonas sp.

Jesus

Mata

Batista³

et al. 2023

Sustainability

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Xanthan gum (XG) is a biopolymer obtained in fermentation and used as a rheology control agent in aqueous systems and in stabilizing emulsions and suspensions. XG, together with other polysaccharides, can form soft, cohesive composite gels. The carbon source in the fermentative process is responsible for one-third of the production costs, and the search for less expensive and sustainable alternatives is ongoing. The use of agricultural residues such as the corncob is highly suggestive due to their abundance. This study aims to evaluate the use of derived hemicellulose fractions from the alkaline extraction of corncob as a carbon source in the production of XG in trials using four strains of Xanthomonas sp. (629, 1,078, 254, and S6). The results indicate that strain 629 provides the higher yield (8.37 ± 5.75 g L−1) while using a fermentation medium containing a carbon source of saccharose (1.25%), hemicellulose fractions (3.75%), and salts. In this same medium, the strain 629 produces gum in 3% aqueous solution, showing the higher apparent viscosity (9,298 ± 31 mPa s−1) at a shear rate of 10 s−1 at 25 °C. In conclusion, corncob is proven to be a promising sustainable alternative carbon source in the obtention of XG, improving the economic viability of the process within a biorefinery context. Saccharose must, however, also be included in the fermentation medium.

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Section: Chemical Composition Of Corn Cob and Hemicellulosic Fraction...mentioning

confidence: 99%

Corncob as Carbon Source in the Production of Xanthan Gum in Different Strains Xanthomonas sp.

Jesus

Mata

Batista³

et al. 2023

Sustainability

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“…It is a production process that takes into consideration, the use of a raw material capable of contributing to the reduction of CO2 emissions into the atmosphere, outlining all production stages with the objective of producing bioproducts, reducing material waste and production cost. It can therefore be defined as the sustainable processing of biomass into different marketable bioproducts (TORRES; KRAAN;DOMÍNGUEZ, 2019;GANDAM et al, 2022).…”

Section: Biorefineriesmentioning

confidence: 99%

The Production of Biokerosene in Brazil: The Use of Macaúba (Acrocomia Aculeata) as Raw Material in Biorefinery

Borges,

Cerqueira,

Cardoso

2023

JER

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The use of fossil fuels over the years has showed a major source of contribution to environmental problems due to gas emissions, such as what contributes to the development of the greenhouse effect. The use of raw materials from biomass is seen as a solution to overcome this problem, since, from lignocellulosic materials, saccharine and starch sources and vegetable oils, it is possible to produce biofuels with characteristics that allow the replacement of fossil fuels commonly used. The production process of these bioproducts takes place in biorefineries, which are responsible for carrying out the process of converting biomass into bioproducts with a focus on sustainability and the development of new technologies. A type of biofuel that has been gaining space and attention is biokerosene, Brazil is one of the countries that consumes the most kerosene and recently a law with the aim of promoting the use and production of biokerosene in Brazilian territory. From this, this work aims to study the biokerosene production process in a biorefinery from macaúba, a biomass found on a large scale in the country, and the prospects for using this biofuel.

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“…Corncob is produced by herbaceous corn (Zea mays. ), with the high energy density for enzymatic hydrolysis [34]. Poplar (Populus euphratica.)…”

Section: Materials and Preparationmentioning

confidence: 99%

Multivariable Analysis Reveals the Key Variables Related to Lignocellulosic Biomass Type and Pretreatment before Enzymolysis

et al. 2022

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In this study, partial least square (PLS), a multivariable analysis, was used to simultaneously quantitatively evaluate the effects of variables related to three pretreatments (alkaline, hot water and acid) and the biomass properties of poplar, salix and corncob. The results showed that biomass type was the most important variable influencing enzymolysis reducing sugar yield (ERSY). The biomass compositions affected the ERSY more than the pretreatment conditions, among which hemicellulose and lignin played vital roles. The alkaline pretreatment had a more positive effect on the ERSY than the acid and hot water pretreatments, in which alkaline content had more influence than temperature. This work provides a deeper understanding of the material properties and the pretreatment conditions in different complex systems before enzymolysis, which might be a guidance to future study.

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Corncob-based biorefinery: A comprehensive review of pretreatment methodologies, and biorefinery platforms

Cited by 28 publications

References 190 publications

Corncob as Carbon Source in the Production of Xanthan Gum in Different Strains Xanthomonas sp.

Corncob as Carbon Source in the Production of Xanthan Gum in Different Strains Xanthomonas sp.

The Production of Biokerosene in Brazil: The Use of Macaúba (Acrocomia Aculeata) as Raw Material in Biorefinery

Multivariable Analysis Reveals the Key Variables Related to Lignocellulosic Biomass Type and Pretreatment before Enzymolysis

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