JOURNAL ARTICLE

Influence of mineral ions on the growth and fermentation performance of Dekkera bruxellensis GDB248.

  • Published In: Letters in Applied Microbiology, 2023, v. 76, n. 5. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Silva, Rayssa Karla; Pita, Will de Barros; Junior, Marcos Antonio de Morais; de Souza, Rafael Barros 3 of 3

Abstract

This article investigates the effects of minerals commonly found in sugarcane juice on the physiology and ethanol fermentation performance of the yeast Dekkera bruxellensis, a species considered for industrial bioethanol production. Minerals were classified as growth inducers (Mn²⁺, Ca²⁺), neutral (K⁺, Mg²⁺, P⁵⁺, Zn²⁺), or inhibitors (Al³⁺, Cu²⁺, Fe²⁺), with copper (Cu²⁺) showing the highest toxicity, particularly under low oxygen conditions. Cu²⁺ toxicity was partially alleviated by magnesium (Mg²⁺) and manganese (Mn²⁺), which are thought to stimulate respiratory metabolism and oxidative stress responses, enhancing yeast tolerance. The study highlights that mineral imbalances in sugarcane substrates can alter carbon metabolism and reduce fermentation efficiency in D. bruxellensis, emphasizing the importance of mineral composition control for optimizing industrial ethanol production using this yeast.

Additional Information

  • Source:Letters in Applied Microbiology. 2023/05, Vol. 76, Issue 5, p1
  • Document Type:Article
  • Subject Area:Environmental Sciences
  • Publication Date:2023
  • ISSN:0266-8254
  • DOI:10.1093/lambio/ovad058
  • Accession Number:164984359
  • Copyright Statement:Copyright of Letters in Applied Microbiology is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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