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Cupuassu juice fermentation by lactiplantibacillus plantarum Lp62 produces an antioxidant enriched probiotic beverage.

  • 2023-03-01
  • Letters in Applied Microbiology 76(3)
    • Lucas Alvarenga da Silva
    • Bianca Silva de Vasconcelos
    • D. K. T. Moreira
    • R. Rezende
    • C. C. Romano
    • Thalis Ferreira Dos Santos


The present work aimed to produce a cupuassu juice (Theobroma grandiflorum) fermented by the probiotic bacterium Lactiplantibacillus plantarum Lp62 and to analyze its antioxidant potential, antimicrobial activity, and resistance to biological barriers. The fermented beverage showed an increase in the content of phenolics, flavonoids, and antioxidant potential. The culture showed antagonistic activity against pathogens, but this result was not observed when the juice was tested. The probiotic strain remained viable under refrigeration, even in an acidified environment, and survived simulated gastrointestinal transit in vitro. L. plantarum Lp62 showed 30% adherence to HT-29 intestinal cells and proved to be safe in terms of antibiotic resistance and production of virulence factors. Fermentation increased the functional characteristics of cupuassu juice. This drink proved to be a good vehicle for the delivery of the probiotic bacteria L. plantarum Lp62.

Keywords: amazonian fruit; biological activity; functional food; microbiota; pathogens.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactiplantibacillus plantarum LP-1Increased Antioxidant CapacityBeneficial
Lactiplantibacillus plantarum LP-1Intestinal Cell AdherenceBeneficial
Lactiplantibacillus plantarum LP-1Reduced Pathogen ActivityNeutral
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