Bioconversion of rapeseed meal for the production of a generic microbial feedstock

Wang, Ruohang; Shaarani, Shalyda Md; Casas-Godoy, Leticia; Melikoğlu, Mehmet; Vergara, Carlos Sola; Koutinas, Apostolis; Webb, Colin

doi:10.1016/j.enzmictec.2010.05.005

Cited by 93 publications

(71 citation statements)

References 23 publications

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“…This prevents metabolic heat generated by microbial activity accumulating. Temperature control also depends on the mixing effect on the solid substrate [109]. Air also could be blown through the headspace.…”

Section: Groupmentioning

confidence: 99%

Design Aspects of Solid State Fermentation as Applied to Microbial Bioprocessing

Webb¹

2017

JABB

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Solid state fermentation (SSF) refers to the microbial fermentation, which takes place in the absence or near absence of free water, thus being close to the natural environment to which the selected micro organisms, especially fungi, are naturally adapted. SSF has been used in the world for a long time. This technology is commonly known in the East, for traditional manufacture of fermented foods, and in the west, for mould-ripened cheese. It can be defined as a system, in which the growth of selected microorganism(s) occurs on solid materials with low moisture contents and has been identified as a potentially important methodology and technique in biotechnology. Nowadays, SSF is an economically viable, practically acceptable technology for large-scale bioconversion and biodegradation processes. Development of sustainable SSF and bioprocess technology is an emerging, multidisciplinary field with possible application to the production of enzymes, chemicals, bioethanol and pharmaceuticals. SSF offers many advantages over conventional submerged fermentation (SMF) such as, simple and inexpensive substrates, elimination of the need for solubilisation of nutrient from within solid substrates, elimination of the need for rigorous control of many parameters during fermentation, product yields are mostly higher, lower energy requirements, produce less waste water, no foam generation and relatively easy recovery of end products. SSF provides flexibility in terms of the raw materials to be used and their capability to produce various value-added products. Keywords:

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Section: Groupmentioning

confidence: 99%

Design Aspects of Solid State Fermentation as Applied to Microbial Bioprocessing

Webb¹

2017

JABB

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“…Therefore, cultures from different strains of microorganisms biodegrade substrates in varied fashions and produce different enzymes, such as glucoamylase, protease, xylanase and cellulase. In the end product of fermentation, enzymes should be present in a heterogeneous mixture as a result of the metabolic activity of the employed microorganism [16].…”

Section: Resultsmentioning

confidence: 99%

Multi-enzymes Production Studies in Single Tray Solid State Fermentation with Opened and Closed System

Manan¹,

Webb²

2016

JLS

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Abstract:The robustness of A. awamori and A. oryzae as enzyme producers is exploited in fungal fermentation on agricultural solid waste. High-level production of extracellular glucoamylase, protease, cellulase and xylanase has been achieved. Three different types of 'waste' solids (wheat bran, soybean hulls and rapeseed meal) have been used in studies of solid state fermentation (SSF). The enzymes could be produced in significant levels by continuously supplying oxygen (O 2 ) through the tray system known as "closed" and "opened" tray systems. A perforated tray system was developed in this study that permits direct access to O 2 . Testing the tray system with different perforated mesh aperture sizes in this study did not yield different results in growth performance of A. awamori and A. oryzae. A. awamori and A. oryzae can be very versatile in producing various enzymes with different substrates with different starch, protein, hemicellulose and cellulose contents. These studies indicate that A. awamori is more suitable for the efficient production of multiple enzymes in the closed system including xylanase and cellulase, while the production of glucoamylase and protease is superior in the opened system. A. oryzae is more suitable for the efficient production of protease and cellulase in the closed system, while the production of protease is more favourable the opened system. A. awamori efficiently consumed starch in wheat bran medium and produced very high glucoamylase activity, and after that, the fungus efficiently produced other enzymes to degrade other complex nutrients such as protein, hemicellulose and cellulose. Meanwhile, A. oryzae efficiently consumed protein in rapeseed meal and produced very high protease activity. The ability of both filamentous fungi, to convert biomass through SSF bioconversion will have a great impact on food and agro-industry in every aspect of life from food and medicine to fuel.

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“…This process was used by Wang et al [88], using rapeseed meal as substrate they produced a product with microbial nutrients similar to yeast extract. The nutritional resemblance between the produced generic feedstock and a combination of commercial peptone and yeast extract was confirmed by growing Saccharomyces cerevisiae cells.…”

Section: Production Of Generic Fermentation Feedstock Mediummentioning

confidence: 99%

The Protagonism of Biocatalysis in Green Chemistry and Its Environmental Benefits

et al. 2017

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Abstract:The establishment of a bioeconomy era requires not only a change of production pattern, but also a deep modernization of the production processes through the implementation of novel methodologies in current industrial units, where waste materials and byproducts can be utilized as starting materials in the production of commodities such as biofuels and other high added value chemicals. The utilization of renewable raw resources and residues from the agro-industries, and their exploitation through various uses and applications through technologies, particularly solid-state fermentation (SSF), are the main focus of this review. The advocacy for biocatalysis in green chemistry and the environmental benefits of bioproduction are very clear, although this kind of industrial process is still an exception and not the rule. Potential and industrial products, such as biocatalysts, animal feed, fermentation medium, biofuels (biodiesel, lignocelulose ethanol, CH 4 , and H 2 ), pharmaceuticals and chemicals are dealt with in this paper. The focus is the utilization of renewable resources and the important role of enzymatic process to support a sustainable green chemical industry.

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Bioconversion of rapeseed meal for the production of a generic microbial feedstock

Cited by 93 publications

References 23 publications

Design Aspects of Solid State Fermentation as Applied to Microbial Bioprocessing

Design Aspects of Solid State Fermentation as Applied to Microbial Bioprocessing

Multi-enzymes Production Studies in Single Tray Solid State Fermentation with Opened and Closed System

The Protagonism of Biocatalysis in Green Chemistry and Its Environmental Benefits

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