Filamentous Fungal Cultures – Process Characteristics, Products, and Applications

El‐Enshasy, Hesham A.

doi:10.1016/b978-044452114-9/50010-4

Cited by 54 publications

(42 citation statements)

References 171 publications

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“…During continuous or fed-batch operation, higher cell loading and volumetric productivities have been reported, since fungal cells can withstand better shear forces than bacterial cells. Some disadvantages of working with biomass pellets include the alterations in fungal cell physiology and kinetics due to mass transfer and oxygen limitations, leading to autolysis in the interior of large pellets [52]. Wittier et al [16] reported that if the pellets exceed a certain size (critical diameter), the lack of oxygen and nutrients within the pellet create a hollow center with a semi-anaerobic environment and low amount of viable hyphae ( Figure 1).…”

Section: Fungal Pellets In Bioreactorsmentioning

confidence: 98%

Fungal pelleted reactors in wastewater treatment: Applications and perspectives

Espinosa-Ortiz

Rene

Pakshirajan

et al. 2016

Chemical Engineering Journal

191

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Section: Fungal Pellets In Bioreactorsmentioning

confidence: 98%

Fungal pelleted reactors in wastewater treatment: Applications and perspectives

Espinosa-Ortiz

Rene

Pakshirajan

et al. 2016

Chemical Engineering Journal

191

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“…Generally, fungal‐based biosystems ensure numerous merits over bacterial‐based biosystems including high‐level secretion of various biotechnologically important metabolites into the growth medium . In addition, the filamentous fungi are considered to be industrially more significant because of their product versatility as well as developmental and commercialization aspects …”

Section: Introductionmentioning

confidence: 99%

“…48,50 In addition, the filamentous fungi are considered to be industrially more significant because of their product versatility as well as developmental and commercialization aspects. 51 Consequently, the purpose of this study was to explore newly isolated indigenous filamentous fungi under laboratory conditions and to screen out the best biosurfactantproducing strain among them by submerged fermentation. Thereafter, the operational and nutritional parameters were optimized for best biosurfactant-producing strain (i.e.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of a biosurfactant‐producing Fusarium sp. BS‐8 from oil contaminated soil

Qazi

Kanwal

Jadoon

et al. 2014

Biotechnology Progress

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This study reports characterization of a biosurfactant-producing fungal isolate from oil contaminated soil of Missa Keswal oil field, Pakistan. It was identified as Fusarium sp. BS-8 on the basis of macroscopic and microscopic morphology, and 18S rDNA gene sequence homology. The biosurfactant-producing capability of the fungal isolates was screened using oil displacement activity, emulsification index assay, and surface tension (SFT) measurement. The optimization of operational parameters and culture conditions resulted in maximum biosurfactant production using 9% (v/v) inoculum at 30°C, pH 7.0, using sucrose and yeast extract, as carbon and nitrogen sources, respectively. A C:N ratio of 0.9:0.1 (w/w) was found to be optimum for growth and biosurfactant production. At optimal conditions, it attained lowest SFT (i.e., 32 mN m(-1) ) with a critical micelle concentration of ≥ 1.2 mg mL(-1) . During 5 L shake flask fermentation experiments, the biosurfactant productivity was 1.21 g L(-1) pure biosurfactant having significant emulsifying index (E24 , 70%) and oil-displacing activity (16 mm). Thin layer chromatography and Fourier transform infrared spectrometric analyses indicated a lipopeptide type of the biosurfactant. The Fusarium sp. BS-8 has substantial potential of biosurfactant production, yet it needs to be fully characterized with possibility of relatively new class of biosurfactants.

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“…These different morphologies that are exhibited in submerged conditions lead to either an increase of the viscosity of the fermentation broth or a decrease of the diffusion rate. These phenomena lead to the decrease of oxygen and nutrient mass transfer, which in turn lowers the reaction rate and product yield (El-Enshasy 2007). Using the second technique, the solid-state culture mode involves the growth of a fungal biomass on the surface of moist but solid substrates.…”

Section: Introductionmentioning

confidence: 99%