Hydrophobic response of the fungus Rhinocladiella similis in the biofiltration with volatile organic compounds with different polarity

Abstract

Rhinocladiella similis biodegraded volatile organic compounds (VOCs) of different polarity in gas-phase biofilters. Elimination capacities, (EC) of 74 g(hexane) m(-3) h(-1), 230 g(ethanol) m(-3) h(-1), 85 g(toluene) m(-3) h(-1) and 30 g(phenol) m(-3) h(-1) were obtained. EC values correlated with the solubility of the VOCs. R. similis grown with n-hexane or ethanol in biofilters packed with Perlite showed that the surface hydrophobicity was higher with n-hexane than ethanol. The hydrophobin-like proteins extracted from the mycelium produced with n-hexane (15 kDa) were different from those in the ethanol biofilter (8.5 kDa and 7 kDa).

Two New Records of Ascomycetes from Crop Field Soils in Korea

“…The different polarity of volatile organic compounds (VOCs) in gas-phase biofilters are degraded by R. similis [9]. Further study regarding its clinical and biotechnological value will be worthwhile.…”

Production and activities of chitinases and hydrophobins from Lecanicillium lecanii

“…Environmental condition also affected the production of Hfb, such as the addition of compounds of opposite polarities for production of class II Hfbs of Rhinocladiella similis [24]. de Vocht and co-workers [25] reported that 1 mg of Hfb (class I) extracted from S. commune was enough to reduce the contact angle by its coating over 1 m 2 of a Teflon monolayer of ca.…”

Growth of the fungus Paecilomyces lilacinus with n-hexadecane in submerged and solid-state cultures and recovery of hydrophobin proteins

“…Boualem et al [28] reported that Penicillium camemberti grown in solid culture increased the expression of the rodA gene, which correlated with the excretion of the protein and increased drastically the mycelial hydrophobicity; on the other hand, no RodA production occurred in liquid cultures and the mycelium remained hydrophilic, and no conidiation was detected. Likewise, Vigueras et al [29] showed that surface hydrophobicity of Rhinocladiella similis and expression of hydrophobin-like proteins was modified in solid culture when using compounds with different polarities such as ethanol or n-hexane. Rocha-Pino et al [30] showed that the production of chitinases and hydrophobins from Lecanicillium lecanii was influenced by the cultivation method and type of carbon source.…”