THE ROLE OF CO-CULTURE FERMENTATİON İN BİOETHANOL PRODUCTİON: HİGH-EFFİCİENCY CONVERSİON STRATEGİES FROM LİGNOCELLULOSİC BİOMASS

Dinçer Şahan Ö., Karadağ A.

4th International Energy Congress, Sivas, Türkiye, 07 Ekim 2025, ss.18-19, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Sivas
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.18-19
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

The growing global demand for sustainable energy, along with the environmental concerns associated with fossil fuel consumption, has highlighted the importance of biofuels. Among them, bioethanol stands out as a renewable, environmentally friendly, and low-carbon alternative. Industrial-scale bioethanol production from lignocellulosic biomass requires not only an abundant and renewable feedstock but also efficient conversion of both hexose (C6) and pentose (C5) sugars. The widely used Saccharomyces cerevisiae strain is effective in fermenting hexoses but lacks the ability to utilize pentoses, which are the second most abundant sugarsin nature. To overcome thislimitation, co-culture fermentation—using compatible yeast strains in synergy—has emerged as a promising strategy. Pentose-fermenting yeasts such as Pichia stipitis, Scheffersomyces stipitis, Spathaspora passalidarum, and others have been successfully co-cultured with Saccharomyces cerevisiae to simultaneously convert both sugar types into ethanol. This review examines the efficiency, advantages, and limitations of co- culture approaches in bioethanol production from lignocellulosic biomass, emphasizing recent advances and potential for industrial application.

Keywords: Biofuel, bioethanol, lignocellulosic biomass, co-culture fermentation, pentose conversion