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    Drying of Kanlıca Mushroom by the Hot Air Drying Method and the Investigations of Its Effects on Its Quality
    (Gazi Univ, 2023) Ongun, Goknur Kayatas; Aktas, Mustafa; Acar, Bahadir; Ozkaymak, Mehmet
    In this study, by providing the hot air drying of Kanlica mushroom collected from Karabuk city; prevention of aflatoxin occurrence, shelf life extension, taking precaution against early putrefaction and decomposition, protection of the beneficent aromas in its content have been ensured. As the dried product, Kanlica mushroom, the most consumed endemic plant spicy in terms of the vitamin and the mineral that it contains among the mushroom groups, has been used. By means of hot air drying, drying has been done at five different (30 oC, 40 oC, 50 oC, 60 oC and 70 oC) temperatures. The best result in terms of water activity, colour changes, energy consumption and drying duration has been obtained in the experiments at 50 oC. The water activity values of products (fresh mushroom water activity: 0,983 aw) dried in hot air drying processes have been found in 0,429 and 0,173 interval (in literature lower than 0,6) and according to the colour analysis experiments result, L*, a*, b*, C*, Ho, increment E, BI values of Kanlica mushroom dried at different temperatures have been calculated. According to the result of the analyses, it has been detected that the preservation of mushrooms hot air drying is appropriate.
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    Experimental Investigation of Freeze-Dried of Kanlica Mushroom (Lactarius Salmoncolor)
    (Gazi Univ, 2023) Ongun, Goknur Kayatas; Ozkaymak, Mehmet; Acar, Bahadir; Aktas, Mustafa; Dagdeviren, Abdullah
    In this study, it is examined to prevent the formation of toxins by providing drying of the kanlica mushroom, which is unique to Karabuk, by freezing, to extend the shelf life, to take measures against early decay and spoilage. As the dried product, kanlica mushroom, which is an endemic plant, contains high amounts of protein and amino acids. In this study, the 5 mm thick cut kanlica mushroom was placed in a freeze-drying device and the drying process was initiated. Weight losses during drying were recorded and kinetic models were created. In the experiment lasting 14 hours in total, 100 gr. The weights of the canlica mushrooms were measured every two hours and MR (Moisture rates) were calculated. According to our results, the lowest chi-square (X-2) was 1.851 x10(-4) and the estimated standard error (RMSE) value was 0.01358. The correlation value (R-2) was calculated as 0.9988, close to one. The best Page model gave these results from the kinetic models. The effective diffusivity for the Kanlica Mushroom with 5 mm thicknesses can be calculated at about 3.2035x10(-10) m(2)/s. It was confirmed that the calculated effective diffusivity value was within the reference range mentioned in the literature (10(-12) m(2)/s - 10(-8) m(2)/s) for food products.