Bioprocessing of lignocelluloses

Smith, J. E.; Anderson, John G.; Senior, E.; Aidoo, Kofi E.

doi:10.1098/rsta.1987.0028

Cited by 15 publications

(4 citation statements)

References 27 publications

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“…seeds, stalks), plant constituents (eg. starch, lipids, protein and fibre), processing byproducts (distiller's grains, corn solubles), materials of marine origin and animal byproducts, municipal and industrial wastes (Smith et al, 1987). These resources can be used to create new biomaterials and this will be required an intimate understanding of the composition of the raw material whether it is whole plant or constituents, so that the desired functional elements can be obtained for bioproduct production.…”

Section: Lignocellulosementioning

confidence: 99%

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Bioconversion of Lignocellulose Materials

Pothiraj¹,

Kanmani²,

Paulraj

2006

Mycobiology

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One of the most economically viable processes for the bioconversion of many lignocellulosic waste is represented by white rot fungi. Phanerochaete chrysosporium is one of the important commercially cultivated fungi which exhibit varying abilities to utilize different lignocellulosic as growth substrate. Examination of the lignocellulolytic enzyme profiles of the two organisms Phanerochaete chrysosporium and Rhizopus stolonifer show this diversity to be reflected in qualitative variation in the major enzymatic determinants (ie cellulase, xylanase, ligninase and etc) required for substrate bioconversion. For example P. chrysosporium which is cultivated on highly lignified substrates such as wood (or) sawdust, produces two extracellular enzymes which have associated with lignin deploymerization. (Mn peroxidase and lignin peroxidase). Conversely Rhizopus stolonifer which prefers high cellulose and low lignin containg substrates produce a family of cellulolytic enzymes including at least cellobiohydrolases and β-glucosidases, but very low level of recognized lignin degrading enzymes.

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Section: Lignocellulosementioning

confidence: 99%

“…Other lignocellulose bioprocessing strategies include anaerobic treatment, composing, production of single cell protein for ruminant animal feeding and mushroom cultivation. These processes have been extensively reviewed (Smith et al, 1987) and will not be further discussed in this review.…”

Section: Bio-fuelmentioning

confidence: 99%

Bioconversion of Lignocellulose Materials

Pothiraj¹,

Kanmani²,

Paulraj

2006

Mycobiology

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“…hexose or pentose sugars), (iii) bio-utilization of these molecules to support microbial growth or to produce Petrochemicals, fuel chemical products and (iv) the separation and purification (Smith et al, 1987). To date, the production of cellulase and other lignocellulosic enzymes have been widely studied in submerged culture processes in the laboratory, ranging from shake flask to 15 000-l fermentations (Haltrich et al, 1996;Kim et al, 1997;Xia and Len, 1999).…”

Section: Bioprocessing Of Lignocellulosic Materialsmentioning

confidence: 99%

“…seeds, stalks), plant constituents (e.g. starch, lipids, protein and fibre), processing byproducts (distiller's grains, corn solubles), materials of marine origin and animal byproducts, municipal and industrial wastes (Smith et al, 1987). These resources can be used to create new biomaterials and this will require an intimate understanding of the composition of the raw material whether it is whole plant or constituents, so that the desired functional elements can be obtained for bioproduct production.…”

Section: Introductionmentioning

confidence: 99%

Lignocellulose biotechnology: issues of bioconversion and enzyme production

Howard¹,

Abotsi²,

Rensburg³

et al. 2003

Afr. J. Biotechnol.

666

309

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This review is written from the perspective of scientists working in lignocellulose bioconversion in a developing country and the aim of this review is to remind ourselves and other scientists working in related areas of lignocellulose research of the enormous economic potential of the bioprocessing of residual plant materials generally regarded as "waste", and secondly to highlight some of the modern approaches which potentially could be used to tackle one of the major impediments, namely high enzyme cost, to speed-up the extensive commercialisation of the lignocellulose bioprocessing.

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Methanogenic fermentation of scots pine (Pinus sylvestris) sawdust: Enhancement by physicochemical pretreatment

Abdul-Halim

Balba

Senior

1988

J of Chemical Tech & Biotech

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The three major polymeric components of Scots Pine sawdust–lignin, hemicellulose and cellulose–represent potential substrates for methanogenic fermentation although, in the absence of physicochemical pretreatment, low digestibility was demonstrated even after protracted incubation (18 months). Acid (H2SO4) and alkali (NaOH) pretreatments mediated different effects although, in general, the rates and percent solubilisations increased with concentration, temperature, pressure and time, either singly or in combination. Individual methanogenic fermentations with the hydrolysates and residual solids showed that although 3.3% more methane resulted from the H2SO4 hydrolysate than the corresponding NaOH hydrolysate, in total, 7% more methane was generated from the two alkali fractions than from the corresponding acid fractions. The results thus exemplified that choice of a specific physicochemical strategy must be made in conjunction with the expected yield from the selected fraction(s).

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Bioprocessing of lignocelluloses

Cited by 15 publications

References 27 publications

Bioconversion of Lignocellulose Materials

Bioconversion of Lignocellulose Materials

Lignocellulose biotechnology: issues of bioconversion and enzyme production

Methanogenic fermentation of scots pine (Pinus sylvestris) sawdust: Enhancement by physicochemical pretreatment

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