H. Duygu BİLGEN, Süreyya DÖŞLÜ ÇETİNKAYA

Improvement of Fungal Oil Production from Apple Processing Industry Wastewater

Öz Turkey has an important place in the world rankings in terms of apple production area and apple processing products. During the process, apple processing industries produce high amounts of fruit washing water with high Chemical Oxygen Demand (COD) and acidic properties, which are highly suitable for use as a fungal substrate. It is also known that fungal oils produced by oleaginous fungi from wastewaters is also suitable to produce low-cost biodiesel as an alternative fuel. In this study apple processing industry wastewater was used as an alternative substrate for Mucor circinelloides and C/N/P ratio was changed to improve fungal lipid production. Maximum oil content of dry fungal biomass was 17.7 %. Composition of fatty acids from the fungal oil were also analysed and gas chromatography analyses showed that the major fatty acid was oleic acid (C18:1, 31.62%) which is very suitable for biodiesel production. Results of the study showed that fungal oil produced from the low-cost substrate apple processing industry wastewater can be useful as an alternative sources for different industries especially in the bio-energy for the future.

Anahtar Kelimeler:

Apple processing industry wastewater, Fungal oil, fatty acid, Mucor circinelloides, value-addition

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