Science and Technology Production
Article
Authorship
Teran, Lucrecia Cecilia
;
Mortera, Pablo
;
TUBIO, GISELA
;
ALARCON, SERGIO HUGO
;
BLANCATO, VICTOR SEBASTIAN
;
ESPARIZ, MARTIN
;
Esteban, Luis
;
MAGNI, CHRISTIAN
Date
2021
Publishing House and Editing Place
WILEY-BLACKWELL PUBLISHING, INC
Magazine
JOURNAL OF APPLIED MICROBIOLOGY,
vol. 132
(pp. 1152-1165)
WILEY-BLACKWELL PUBLISHING, INC
Summary
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Aims: Fermented feed is an agricultural practice used in many regions of the world to improve the growth performance of farm animals. This study aimed to identify and evaluate the lactic acid bacteria and yeast involved in the production of fermented feed. Methods and Results: We isolated and described two micro-organisms from autochthonous microbiota origin present in a regional feed product, Lactobacillus paracasei IBR07 (Lacticaseibacillus paracasei) and Kazachstania unispora IBR014 (Sacchar...
Aims: Fermented feed is an agricultural practice used in many regions of the world to improve the growth performance of farm animals. This study aimed to identify and evaluate the lactic acid bacteria and yeast involved in the production of fermented feed. Methods and Results: We isolated and described two micro-organisms from autochthonous microbiota origin present in a regional feed product, Lactobacillus paracasei IBR07 (Lacticaseibacillus paracasei) and Kazachstania unispora IBR014 (Saccharomyces unisporum). Genome sequence analyses were performed to characterize both micro-organisms. Potential pathways involved in the acid response, tolerance and persistence were predicted in both genomes. Although L. paracasei and K. unispora are considered safe for animal feed, we analysed the presence of virulence factors, antibiotic resistance and pathogenicity islands. Furthermore, the Galleria mellonella model was used to support the safety of both isolates. Conclusions: We conclude that IBR07 and IBR014 strains are good candidates to be used as starter cultures for feed fermentation. Significance and Impact of the Study: The data presented here will be helpful to explore other biotechnological aspects and constitute a starting point for further studies to establish the consumption benefit of fermented feed in farm animal production.
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Key Words
Lactobacillus casei groupLacticaseibacillus paracaseiKazachstania unisporafermentation feed
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