Effect of the oscillating magnetic field on airborne fungal

Abstract

This study shows that some species of fungi are affected by the magnetic field, which should be taken into account in studies of airborne fungal and air quality. The aim of this paper was to evaluate the effect of the oscillating magnetic field (OMF) on the behavior of colonies of three fungi genus growth in different culture mediums. The stains were: Aspergillus niger, Cladosporium cladosporioides and Penicillium citrinum and were inoculated in 90 mm Petri dishes with: Malt Extract Agar (MEA), Sabouraud Dextrose Agar (SDA) and Czapek-Dox Agar (CDA). Was applied them OMF of 60 Hz/220 V between 1 and 5 mT during 2 h and then they were incubated 7 days to 28 °C. Colonies size (mm) every day was measured. Stimulation in the colonies size of all experimental conditions was showed; the greatest size of A. niger in MEA was notorious. It was demonstrated by statist analyze that only colonies size with 1 mT was significance respect to the control. The effect of OMF on the cellular metabolism was evidenced, as well as: less exudation and major pigmentation of P. citrinum in MEA; variation of pigmentation of A. niger and C. cladosporioides in CDA and increase of conidiogenesis of A. niger in SDA. Was concluded that the applied OMF had a major influence on size colony and mycelia pigmentation of A. niger that C. cladosporioides and P. citrinum, independently of the nutritional state according to the culture medium employed in this study.

Experimental Prototype of Electromagnetic Emissions for Biotechnological Research: Monitoring Cocoa Bean Fermentation Parameters

“…Numerous studies have shown that non-uniform magnetic fields can introduce variations in the response of biological systems, affecting the results of controlled biotechnological experiments [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. By addressing non-uniformity through polygonal coil designs and dimension adjustments, the understanding and applicability of electromagnetic technologies in various biotechnology studies can be advanced [ 21 , 22 , 23 ].…”

“…Recent research indicates that electromagnetic fields can stimulate or inhibit different biological systems [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ], such as the growth of plants [ 13 ], fruits [ 14 ], and microorganisms [ 15 ]. Similarly, they affect cells in the human [ 16 ] and animal [ 17 ] body by stimulating or inhibiting different cellular processes [ 18 ].…”

“…Similarly, they affect cells in the human [ 16 ] and animal [ 17 ] body by stimulating or inhibiting different cellular processes [ 18 ]. Several of these cellular properties have been used to improve health [ 4 ], obtain metabolites of industrial interest [ 5 ], and remove contaminants from soil [ 6 ], water [ 7 ], and air [ 8 ]. In this sense, electromagnetic fields offer a sustainable and non-invasive solution with different practical applications such as medical therapy [ 9 ], production processes [ 10 ], and environmental protection [ 11 ], maintaining natural integrity [ 3 ].…”