Invited review: Genomic modifications of lactic acid bacteria and their applications in dairy fermentation

Zifan Xie, Olivia McAuliffe, Yong Su Jin, Michael J. Miller

Research output: Contribution to journalReview articlepeer-review

Abstract

Lactic acid bacteria (LAB) have a long history of safe use in milk fermentation and are generally recognized as health-promoting microorganisms when present in fermented foods. Lactic acid bacteria are also important components of the human intestinal microbiota and are widely used as probiotics. Considering their safe and health-beneficial properties, LAB are considered appropriate vehicles that can be genetically modified for food, industrial and pharmaceutical applications. Here, this review describes (1) the potential opportunities for application of genetically modified LAB strains in dairy fermentation and (2) the various genomic modification tools for LAB strains, such as random mutagenesis, adaptive laboratory evolution, conjugation, homologous recombination, recombineering, and CRISPR (clustered regularly interspaced short palindromic repeat)-Cas (CRISPR-associated protein)-based genome engineering. Finally, this review also discusses the potential future developments of these genomic modification technologies and their applications in dairy fermentations.

Original languageEnglish (US)
Pages (from-to)8749-8764
Number of pages16
JournalJournal of Dairy Science
Volume107
Issue number11
DOIs
StatePublished - Nov 2024

Keywords

  • CRISPR
  • dairy fermentation
  • genome modification
  • lactic acid bacteria

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology
  • Genetics

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