Microbial Biomass from Renewables: A Second Review of Alternatives

Rolz, C.

doi:10.1016/b978-0-12-040307-3.50013-5

Cited by 5 publications

(2 citation statements)

References 757 publications

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“…T a ble 2. E xisting and p o t e n t ia l a pplic a t io n s fo r bioconversion of lig no celluloses in to PRODUCTS (Wood ( 1985) Rolz 1984;Wood 1984). These are primarily low-moisture fermentations and basically lack the sophisticated control systems normally achieved in liquid fermentations.…”

Section: Bioconversion Of Lignocelluloses: the Strategiesmentioning

confidence: 99%

“…However, the boundary between wastes and by-products is arbitrary and should utility increase a waste can become a by-product and achieve a higher market value. Bioprocessing technologies are expensive and must be analysed not only against one another but also against competing technologies, such as combustion, pyrolysis and gasification, to determine the most beneficial route to a given end product (Rolz 1984;Hacking 1986).…”

Section: Introductionmentioning

confidence: 99%

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Bioprocessing of lignocelluloses

Smith

Anderson

Senior

et al. 1987

Phil. Trans. R. Soc. Lond. A

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Lignocelluloses represent a major source of renewable organic matter. Development of biological processing strategies normally must consider some form of pretreatment, hydrolysis of the polymers and bioutilization or bioconversion of these molecules to useful products. Bioprocessing technologies will usually involve low-moisture solidsubstrate fermentations. Landfill techniques are now widely practised and gas abstraction methods developed. Aerobic composting methods have gained increasing importance recently and set out to achieve brevity of process with low energy consumption, safe standard products for agricultural use and hygienic operation. ‘Open’ and 'closed’ composting systems are compared and evaluated. Single-cell protein has been produced from many lignocellulosic wastes and used for ruminant animal feeding. Current practices use pure-culture or mixed-culture bioprocesses. Mushroom cultivation is the most economically successful method for bioprocessing lignocelluloses and many commercial systems operate throughout the world.

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Section: Bioconversion Of Lignocelluloses: the Strategiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioprocessing of lignocelluloses

Smith

Anderson

Senior

et al. 1987

Phil. Trans. R. Soc. Lond. A

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Fermentation of Biomass and Residues from Brazilian Agriculture for 2G Bioethanol Production

Faria,

Carvalho,

Conte-Junior

2024

ACS Omega

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Brazil is one of the world's leading producers of staple foods and bioethanol. Lignocellulosic residual sources have been proposed as a promising feedstock for 2G bioethanol and to reduce competition between food and fuels. This work aims to discuss residual biomass from Brazilian agriculture as lignocellulosic feedstock for 2G bioethanol production as bagasse, stalk, stem, and peels, using biorefining concepts to increase ethanol yields. Herein, we focused on biomass chemical characteristics, pretreatment, microorganisms, and optimization of process parameters that define ethanol yields for bench-scale fermentation. Although several techniques, such as carbon capture, linking enzymes to supports, and a consortium of microorganisms, emerge as future alternatives in bioethanol synthesis, these technologies entail necessary optimization efforts before commercial availability. Overcoming these challenges is essential to linking technological innovation to synthesizing environmentally friendly fuels and searching other biomass wastes for 2G bioethanol to increase the biofuel industry's potential. Thus, this work is the first to discuss underutilized lignocellulosic feedstock from other agrifoods beyond sugar cane or corn, such as babassu, tobacco, cassava, orange, cotton, soybean, potatoes, and rice. Residual biomasses combined with optimized pretreatment and mixed fermentation increase hydrolysis efficiency, fermentation, and purification. Therefore, more than a product with a high added value, bioethanol synthesis from Brazilian residual biomass prevents waste production.

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Pleurotusmushrooms. Part III. Biotransformations of natural lignocellulosic wastes: Commercial applications and implications

Rajarathnam

Bano

Steinkraus

1989

Critical Reviews in Food Science and Nutrition

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Species of Pleurotus are endowed with the capacity to degrade unfermented natural lignino-cellulosic wastes. From the time the substrate is spawned until the end of cropping, there occurs a spectrum of qualitative and quantitative changes in the various substrate constituents, viz., cellulose, hemicellulose, lignin, sugars, amino acids, phenols, ash, nitrogen, etc. In general, cellulose, hemicellulose, and lignin are degraded, solubility of the substrate is increased, phenolic content is decreased, sugar and amino acid contents are increased, as is the ash content due to a constant utilization of the organic matter. The ability of Pleurotus to effect these degradative changes is discussed under both sterile (monoculture) and nonsterile culturing conditions. The enzymatic aspects affecting these various chemical changes in the lignino-cellulosic substrates are brought out. The various commercial applications and implications of the spent substrate, such as use as an upgraded form of ruminant feed, production of biogas, manufacture of paper/cardboard, recycling into Agaricus compost, garden fertilizer, production of single cell proteins, etc., are critically evaluated.

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Microbial Biomass from Renewables: A Second Review of Alternatives

Cited by 5 publications

References 757 publications

Bioprocessing of lignocelluloses

Bioprocessing of lignocelluloses

Fermentation of Biomass and Residues from Brazilian Agriculture for 2G Bioethanol Production

Pleurotusmushrooms. Part III. Biotransformations of natural lignocellulosic wastes: Commercial applications and implications

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