Saccharomyces cerevisiae and newly isolated Candida boidinii co-fermentation of industrial tea waste for improved bioethanol production

DEMİRAY E., Açıkel E., ERTUĞRUL KARATAY S., DÖNMEZ G.

Energy Sources, Part A: Recovery, Utilization and Environmental Effects, vol.44, no.1, pp.1160-1172, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.1080/15567036.2022.2053763
  • 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, Agricultural & Environmental Science 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.1160-1172
  • Keywords: bioethanol, Candida boidinii, co-fermentation, industrial tea waste, saccharomyces cerevisiae
  • Ankara Yıldırım Beyazıt University Affiliated: Yes

Abstract

© 2022 Taylor & Francis Group, LLC.Although bioethanol is a suitable alternative to fossil-based fuels, limited technologies or lack of microorganisms with a broad substrate spectrum are serious bottlenecks for lignocellulosic ethanol production. In this context, the current study aimed to optimize bioethanol production from industrial tea waste by applying co-fermentation strategy for the first time. For this purpose, newly isolated xylose fermenter Candida boidinii and Saccharomyces cerevisiae produced 12.1 g/L and 14.1 g/L bioethanol, respectively, when the yeasts were cultivated alone in 20% (w/v) dilute acid pretreated and enzymatically hydrolyzed industrial tea waste. Bioethanol production increased to 21.9 g/L, and 70% improvement was achieved when the co-fermentation strategy was applied under the same conditions. This study shows that co-fermentation of industrial tea waste is an economically viable choice for value-added bioethanol production.