Usage of thermophilic cyanobacterial biomass for bioethanol production

Karatay S.

ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, cilt.34, sa.3, ss.903-907, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1002/ep.12056
  • Dergi Adı: ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.903-907
  • Anahtar Kelimeler: bioethanol, cyanobacteria, Phormidium sp, acid hydrolysis, BIODIESEL PRODUCTION, ENZYMATIC-HYDROLYSIS, MICROALGAL BIOMASS, ETHANOL-PRODUCTION, CO2 FIXATION, FERMENTATION, PRETREATMENT, SACCHARIFICATION, OPTIMIZATION, STRAW
  • Ankara Üniversitesi Adresli: Evet

Özet

Although the usage of microalgae biomass as a feedstock for bioethanol production has been extensively studied, very little attention has been given to the usage of cyanobacterial biomass for bioethanol production. In this study, a thermophilic cyanobacterial strain namely Phormidium sp. was used for producing bioethanol. Some important parameters for bioethanol production were optimized. When the initial sugar concentration was 8.69 at 40 g L-1 cyanobacteria loading, Pichia stipitis used 31.5% of the sugar and produced 1.64 g L-1 ethanol and Saccharomyces cerevisiae used 34.6% of the sugar and produced 1.97 g L-1 ethanol at the end of 72 h. The highest bioethanol concentration was obtained as 2.32 g L-1 for S. cerevisiae and 1.7 g L-1 for P. stipitis at 24 h of incubation time and substrate concentration of 40 g L-1 cyanobacterial biomass at pH 5. This study demonstrated that the biomass of a thermophilic cyanobacteria is a promising feedstock for bioethanol production. (c) 2014 American Institute of Chemical Engineers Environ Prog, 34: 903-907, 2015