Introducing a new salty waste for second-generation bioethanol production

Demiray E., Ertuğrul Karatay S., Ekici H., Donmez G.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, cilt.40, sa.17, ss.2070-2078, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 17
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1080/15567036.2018.1487487
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2070-2078
  • Anahtar Kelimeler: Bioethanol, carrot pomace, fermentation, molasses, turnip juice discards, ETHANOL-PRODUCTION, SACCHAROMYCES-CEREVISIAE, SIMULTANEOUS SACCHARIFICATION, ENZYMATIC-HYDROLYSIS, FERMENTATION, YEAST, OPTIMIZATION, PERFORMANCE, IMPROVEMENT, MAGNESIUM
  • Ankara Üniversitesi Adresli: Evet

Özet

We have introduced the discards of turnip juice as a raw material for bioethanol production for the first time. Pretreatment methods, initial biomass loading, and fermentation time were investigated. Supplementation of different kinds of nitrogen sources, mineral salts and agricultural waste hydrolysates were added in the growth medium. The highest bioethanol concentrations and Q(p) values were 7.32, 5.34, 1.55 g/L and 0.61, 0.44, 0.05 g/L.h for S. cerevisiae, K. marxianus and P. stipitis, respectively. Furthermore, Y-p/s, values were 0.46 g/g, 0.47 g/g, and 0.37 g/g for the three yeasts. Turnip juice discards are promising raw materials for bioethanol production.