Second generation bioethanol production from hemicellulolytic hydrolyzate of apple pomace by Pichia stipitis

Kut A., Demiray E., ERTUĞRUL KARATAY S., DÖNMEZ G.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, vol.44, no.2, pp.5574-5585, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.1080/15567036.2020.1838000
  • Journal Name: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.5574-5585
  • Keywords: Hemicellulolytic hydrolyzate, apple pomace, pichia stipitis, enzymatic hydrolysis, bioethanol, D-XYLOSE FERMENTATION, ETHANOL-PRODUCTION, SACCHAROMYCES-CEREVISIAE, SCHEFFERSOMYCES-STIPITIS, ENZYMATIC-HYDROLYSIS, ACID PRETREATMENT, YEAST, INHIBITORS, ENERGY, LIGNOCELLULOSE
  • Ankara University Affiliated: Yes

Abstract

Investigation of novel feedstocks and microorganisms is very important for bioethanol production. Bioethanol production from hemicellulolytic hydrolyzate of the apple pomace was aimed in this study. Effects of some critical parameters such as biomass loading (5, 10, 15% w/v), supplements (nitrogen and mineral sources), and enzymatic hydrolysis on bioethanol production were optimized. The highest theoretical ethanol yield was observed as 84.1%, and Pichia stipitis produced 14.36 g/L bioethanol in the presence of the 10% (w/v) apple pomace loading. This is the first report about the enzymatic hydrolysis of the liquid fraction of apple pomace for bioethanol production by Pichia stipitis.