A Novel Carrier for<i>Phanerochaete chrysosporium</i>Immobilization

Ürek, Raziye Öztürk; Pazarlıoǧlu, Nurdan Kaşıkara

doi:10.1081/bio-200039618

Cited by 9 publications

(3 citation statements)

References 19 publications

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“…Some other inert carriers (stainless steel net, polyamide fibre, fibreglass and polyurethane foam) used to immobilize P. chrysosporium have also confirmed that immobilization of their cells can increment the enzyme activity and efficacy on the treatments (Urek & Pazarlioglu 2004;Nurdan et al 2005;Carletto et al 2008;Gao et al 2008). However, one of the most common problems with these types of supports is that fungal hyphae agglomerate into bioreactors (Wang & Hu 2007), whereas biogel alginate protects biomass and provides a homogenous aerobic condition, which helps to avoid impurities into fermentation products.…”

Section: P Chrysosporium Immobilizationmentioning

confidence: 92%

“…It has been established that other materials as those made of sodium carboxymethyl cellulose or chitosan could have less resistance at pH extremes and high agitated cultures conditions. In addition, structure of mycelium is affected by these materials and enzymes actuation may be also be limited (Urek & Pazarlioglu 2004;Wang & Hu 2007). …”

Section: P Chrysosporium Immobilizationmentioning

confidence: 99%

“…Apart from agitation, fungal immobilization can also provide a suitable low-shear environment for ligninolytic system of fungi. Immobilize culture of P. chrysosporium on supports like polyurethane foam has often been reported for decolourization of various dyes (Minussi et al 2001;Urek & Pazarlioglu 2004;Park et al 2006). Shim & Kawamoto (2002) studied the enzymes production from P. chrysosporium using a batch reactor system.…”

Section: Introductionmentioning

confidence: 99%

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Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

et al. 2014

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Enzyme production by immobilized Phanerochaete chrysosporium was evaluated in airlift bioreactor and agitated cultures. Free mycelium and immobilized mycelium on alginate beads were tested in the decolourization of 50 and 500 mg/L of Remazol Brilliant Blue R. Dye concentration did not inhibit the fungi development in all tests. In addition, high decolourization percentage of dye was found with free mycelium (99%) in agitated flasks and with immobilized mycelium in airlift (98%). However, decolourization period by immobilized mycelium (120 h) was greater than that by the free mycelium (14 h). Important manganese peroxidase, lignine peroxidase and laccase activities were identified in decolourization process. Manganese peroxidase appeared to be promoted by high dye concentrations during the treatment with immobilized mycelium, but this enzyme was not detected with free mycelium in airlift. Bioreactor prompted also laccase and lignine peroxidase actions in both tests; free mycelium registered a maximum laccase action of 31.569 × 10 3 U/L in 70 h, whereas immobilized mycelium registered 1.680 × 10 3 U/L in 170 h, while lignine peroxidase secretion by free P. chrysosporium was higher (1.300 × 10 3 U/L) than immobilized mycelium (1.250 × 10 3 U/L). Maximum laccase activity coincided with the maximum percentage of decolourization, however, high peroxidase activity was identified from the start of dye treatment.

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Section: P Chrysosporium Immobilizationmentioning

confidence: 92%

Section: P Chrysosporium Immobilizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

et al. 2014

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Productive biofilms: from prokaryotic to eukaryotic systems

Schmeckebier

Zayed

Ulber

2022

J of Chemical Tech & Biotech

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Biofilms have great potential for producing valuable products more efficiently than suspended cultivations when it comes to yield and productivity. In addition, biofilms have the advantage of cell protection and increased resistance to environmental influences. Therefore, productive biofilms are used in biofilm reactors to produce value‐added products. A summary of possible applications for biofilm reactors is given here. In addition, the surfaces on which biofilms are cultivated are briefly explained. The possibility of using biofilms is not limited to prokaryotic systems. Thus, eukaryotic systems can also be cultivated as biofilms to produce valuable products. Therefore, both prokaryotic and eukaryotic productive biofilms will be described in this review. In the case of eukaryotic systems, fungal biofilms and plant biofilms will be discussed. The biofilm formation of the different cell types is listed and the productivity of a cell line on a corresponding substrate is summarized. Finally, the investigation methods of biofilms are discussed, as these methods are essential to understanding biofilms. © 2022 The Authors. Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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Application of Biofilm Bioreactors in White Biotechnology

Muffler

Lakatos

Schlegel

et al. 2014

Advances in Biochemical Engineering/Biotechnology

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The production of valuable compounds in industrial biotechnology is commonly done by cultivation of suspended cells or use of (immobilized) enzymes rather than using microorganisms in an immobilized state. Within the field of wastewater as well as odor treatment the application of immobilized cells is a proven technique. The cells are entrapped in a matrix of extracellular polymeric compounds produced by themselves. The surface-associated agglomerate of encapsulated cells is termed biofilm. In comparison to common immobilization techniques, toxic effects of compounds used for cell entrapment may be neglected. Although the economic impact of biofilm processes used for the production of valuable compounds is negligible, many prospective approaches were examined in the laboratory and on a pilot scale. This review gives an overview of biofilm reactors applied to the production of valuable compounds. Moreover, the characteristics of the utilized materials are discussed with respect to support of surface-attached microbial growth.

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A Novel Carrier forPhanerochaete chrysosporiumImmobilization

Cited by 9 publications

References 19 publications

Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

Enzyme production by immobilized Phanerochaete chrysosporium using airlift reactor

Productive biofilms: from prokaryotic to eukaryotic systems

Application of Biofilm Bioreactors in White Biotechnology

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