BioEnergy Research

, Volume 12, Issue 1, pp 112–122 | Cite as

Bioethanol Production from Dairy Industrial Coproducts

  • Cleidiane Samara MurariEmail author
  • Débora Cristina Moraes Niz da Silva
  • Guilherme Lorencini Schuina
  • Erika Fernanda Mosinahti
  • Vanildo Luiz Del Bianchi
Original Research


This study aimed to produce ethanol by lactose conversion of dairy coproducts (cheese whey, and whey permeate) using the yeast Kluyveromyces marxianus URM 7404, isolated from cheese whey obtained from the production of Gorgonzola cheese. The fermentation occurred at 30 °C for 20 h under aerobic, microaerobic, and anaerobic conditions for both substrates. The results indicated that ethanol production was greater when using the whey permeate under anaerobic conditions (8.90 g L−1, 18 h of fermentation) in comparison to cheese whey (8.08 g L−1, 10 h) at the same conditions. However, regarding the ethanol yield (η), the cheese whey substrate was more effective, given that it achieved 76% of yield (η) and a volumetric productivity (QP) of 0.81 g L−1 h−1 in 10 h under fermentation anaerobic conditions. Biomass production and productivity (QX) were more satisfactory in the whey permeate under aerobic conditions (11.48 g L−1 and 0.75 g L−1 h−1, respectively), in 14 h, with a specific growth rate of 0.253 h−1. It has been obtained 86% of COD reduction at the end of the aerobic process.


Biofuel Renewable energy Kluyveromyces Cheese whey Whey permeate Environment 


Funding Information

The authors are grateful to CAPES—Coordination for the Improvement of Higher Education Personnel for the financial support of this research.

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Food Engineering and TechnologyUNESP—São Paulo State UniversitySão José do Rio PretoBrazil

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