Akademik Veri Yönetim Sistemi
5th International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2022), 24-26 November 2022 Ankara/Turkey, Ankara, Türkiye, 23 - 25 Kasım 2022, ss.744-747
Natural resources have progressively started to decline as a result of the quickly growing population and the
following expanding industrialization. This situation has led to the search for renewable alternative sources
instead of fossil-based resources. For production from renewable resources in a sustainable future, the
conversion of carbohydrate by-products to value-added products is essential. Biomass-derived products are
the only practical options for the production of transportation fuels and platform chemicals. Biomass can be
converted into fuels and platform chemicals using fermentation processes with the aid of microorganisms.
Rhizopus oryzae is a fungus, uses sugars from biomass to make ethanol, L-(+)-lactic acid, and fumaric acid.
Thanks to the amylase enzymes in its content, it is useful in breaking down starch by using plant-based wastes
and consequently obtaining products such as ethanol, enzymes, organic acids like lactic acid, antibiotics,
proteins, and vitamins. In this study, ethanol and lactic acid production from potato peel wastes, horse chestnut
seeds, and peanut shells were studied by using R. oryzae. FTIR analysis was performed to identify the
functional groups of the waste materials used in the study. Lactic acid, ethanol, and glucose concentrations
were measured by HPLC. The highest ethanol conversion efficiency with 86% was obtained from potato peel,
and the highest lactic acid conversion efficiency with 4% was obtained from horse chestnut.