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    A Research on Soil and Air Microfungi in Agricultural Areas Growing Different Plants in Thrace Region
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2020) Cakmak, Meltem; Aydogdu, Halide
    The aim of this study was to investigated the concentration and composition of microfungi and airborne microfungi in the soil where various field and horticultural crops were grown in the Thrace Region. The average number of micro fungi in fresh soil corresponding to 1 g of dry soil was highest in potato-grown soil and lowest in sunflower soil. While the soil of the onion field showed the most diversity in terms of micro fungus genus, the least variation was observed in pea garden. In the air samples taken from the fields where field crops were grown, the most fungal spores were isolated from chickpea field and the least from sunflower field. While the fungal diversity was highest in air samples taken from onion and corn fields, the least variation was determined in air samples taken from bean and mint garden. Microfungi of Mycelia Sterilia were most commonly isolated in all soil samples, followed by Penicillium, Acremonium, Aspergillus and Fusarium species, respectively. Cladosporium was determined to be the predominant genus in the air of the fields where all plants were grown.
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    Screening of microfungi for lipolytic activity and optimization of process parameters in lipase production by solid substrate fermentation using selected microfungi (Penicillium aurantiogriseum)
    (Academic Publication Council, 2021) Cakmak, Meltem; Aydogdu, Halide
    In the present study, eighty-four strains of microfungi were screened for lipolytic activity, and Penicillium aurantiogriseum showing the highest enzyme activity was selected. Then extracellular lipase production from this species was carried out using the solid state fermentation (SSF) method, in which various agricultural wastes were used as substrates. Among the various agricultural wastes used in SSF, sunflower pulp was determined as the best solid substrate. Optimum fermentation conditions were found as follows: 6-day incubation time at 25 degrees C and moisturizing liquid pH: 5.5 (distilled water), initial moisture level 75% (w/v), initial inoculum concentration 1 ml (1x10(6) spores/ml), and 1% sesame oil as a carbon source. As a result of the optimum conditions, the volume activity was recorded as 0.4 U/ml, and the specific enzyme activity was obtained as 1.13 U/mg.