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Antifungal activity of nano and micro charcoal particle polymers against Paecilomyces variotii, Trichoderma virens and Chaetomium globosum

Author:
Yang, Hee Jin, Cha, Yun Jeong, Kim, Hern, Choi, Shin Sik
Source:
New biotechnology 2016 v.33 no.1 pp. 55-60
ISSN:
1871-6784
Subject:
Chaetomium globosum, Paecilomyces variotii, Trichoderma virens, adsorption, antifungal properties, calcium, calcium chloride, charcoal, conidia, fungi, hyphae, ions, mycelium, polymers, powders
Abstract:
This study investigates the antifungal activity of a polymer integrated with nano-porous charcoal particles against Paecilomyces variotii, Chaetomium globosum, Trichoderma virens, which are all filamentous fungi. The charcoal polymers were prepared by combining charcoal powders with plastic resin under a vacuum to form charcoal particle protrusions on the polymer surface. The mycelial growth of P. variotii and T. virens exhibited a reduction of 10 and 30%, respectively, after the conidia were pre-treated with charcoal polymers, and in particular, no mycelial growth was found in C. globosum during 5 days of culture. The adsorption of Ca²⁺ into charcoal was suggested to inhibit growth due to the reduction in the flux of calcium ions (Ca²⁺) into the hyphae. In 5h, about 15mM of Ca²⁺ were removed from CaCl2 solution with 0.2g/mL of polymers, and the nano-sized pores of the charcoals on the polymer were responsible for the Ca²⁺ adsorption.
Agid:
5306599