Integrated biorefinery processes for conversion of lignocellulosic biomass to value added materials: Paving a path towards circular economy

Velvizhi, G.; Balakumar, K; Shetti, Nagaraj P.; Ahmạd, Ejaz; Pant, Kamal Kishore; Aminabhavi, Tejraj M.

doi:10.1016/j.biortech.2021.126151

Cited by 126 publications

(34 citation statements)

References 106 publications

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“…According to Velvizhi et al (2022), biorefineries can be classified as energy-driven or product-driven based on the selected biorefinery pathways [ 70 ]. As can be seen in Figure 2 , biorefinery may integrate four main process types: mechanical conversion, chemical conversion, biological conversion, and thermochemical conversion [ 71 ].…”

Section: Winery Residues Biorefinerymentioning

confidence: 99%

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

2022

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The wine industry is one of the most relevant socio-economic activities in Europe. However, this industry represents a growing problem with negative effects on the environment since it produces large quantities of residues that need appropriate valorization or management. From the perspective of biorefinery and circular economy, the winery residues show high potential to be used for the formulation of new products. Due to the substantial quantities of phenolic compounds, flavonoids, and anthocyanins with high antioxidant potential in their matrix, these residues can be exploited by extracting bioactive compounds before using the remaining biomass for energy purposes or for producing fertilizers. Currently, there is an emphasis on the use of new and greener technologies in order to recover bioactive molecules from solid and liquid winery residues. Once the bio compounds are recovered, the remaining residues can be used for the production of energy through bioprocesses (biogas, bioethanol, bio-oil), thermal processes (pyrolysis, gasification combustion), or biofertilizers (compost), according to the biorefinery concept. This review mainly focuses on the discussion of the feasibility of the application of the biorefinery concept for winery residues. The transition from the lab-scale to the industrial-scale of the different technologies is still lacking and urgent in this sector.

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Section: Winery Residues Biorefinerymentioning

confidence: 99%

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

2022

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“…Despite the high availability, the degradation of biomass is a substantial challenge. Hence, it is necessary to integrate several unit processes such as biochemical, thermochemical, physical, and catalytic conversion to produce a wide range of bio-based products (Velvizhi et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Fermentative Lactic Acid Production From Lignocellulosic Feedstocks: From Source to Purified Product

Yankov

2022

Front. Chem.

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The second (lignocellulosic biomass and industrial wastes) and third (algal biomass) generation feedstocks gained substantial interest as a source of various value-added chemicals, produced by fermentation. Lactic acid is a valuable platform chemical with both traditional and newer applications in many industries. The successful fractionation, separation, and hydrolysis of lignocellulosic biomass result in sugars’ rich raw material for lactic acid fermentation. This review paper aims to summarize the investigations and progress in the last 5 years in lactic acid production from inexpensive and renewable resources. Different aspects are discussed—the type of raw materials, pretreatment and detoxification methods, lactic acid-producers (bacteria, fungi, and yeasts), use of genetically manipulated microorganisms, separation techniques, different approaches of process organization, as well as main challenges, and possible solutions for process optimization.

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“…Interestingly, integrated biorefineries (capable of obtaining benefits from the diverse LCM components) are compatible with the circular economy principles [3] and have been claimed to facilitate the transition to a circular economy on the basis of suitable waste management [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Acidic Ionic Liquids as Catalysts for Furfural Production from Eucalyptus nitens Wood

et al. 2022

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Eucalyptus nitens wood samples were subjected to hydrothermal processing to obtain soluble saccharides from the hemicellulosic fraction. The hemicellulose-derived saccharides were employed as substrates for furfural production in biphasic media made up of water, methyl isobutyl ketone, and one acidic ionic liquid (1-butyl-3-methylimidazolium hydrogen sulfate or 1-(3-sulfopropyl)-3-methylimidazolium hydrogen sulfate). The reactions were carried out in a microwave-heated reactor to assess the effects of the most influential variables. Under selected operational conditions, the molar conversions of the precursors into furfural were within the range of 77–86%. The catalysts conserved their activity after reutilization in five consecutive reaction cycles.

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Integrated biorefinery processes for conversion of lignocellulosic biomass to value added materials: Paving a path towards circular economy

Cited by 126 publications

References 106 publications

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

Increasing Value of Winery Residues through Integrated Biorefinery Processes: A Review

Fermentative Lactic Acid Production From Lignocellulosic Feedstocks: From Source to Purified Product

Evaluation of Acidic Ionic Liquids as Catalysts for Furfural Production from Eucalyptus nitens Wood

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