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Dynamics and diversity of the bacterial community during the spontaneous decay of açai (Euterpe oleracea) fruits
Moura, Fábio Gomes; Graças, Diego Assis das; Santos, Agenor Valadares; Silva, Artur Luiz da Costa da; Rogez, Hervé.
  • Moura, Fábio Gomes; Universidade Federal do Pará. Centro de Valorização de Compostos Bioativos da Amazônia (CVACBA). Belém. BR
  • Graças, Diego Assis das; Universidade Federal do Pará,. Instituto de Ciências Biológicas. Belém. BR
  • Santos, Agenor Valadares; Universidade Federal do Pará,. Instituto de Ciências Biológicas. Belém. BR
  • Silva, Artur Luiz da Costa da; Universidade Federal do Pará,. Instituto de Ciências Biológicas. Belém. BR
  • Rogez, Hervé; Universidade Federal do Pará. Centro de Valorização de Compostos Bioativos da Amazônia (CVACBA). Belém. BR
Braz. j. microbiol ; 49(supl.1): 25-33, 2018. tab, graf
Article in English | LILACS | ID: biblio-974330
ABSTRACT
Abstract The biodiversity and evolution of the microbial community in açai fruits (AF) between three geographical origins and two spontaneous decay conditions were examined by applying culture-independent methods. Culture-independent methods based on 16S rRNA from fifteen samples revealed that Proteobacteria, Firmicutes, Actinobacteria, Bacteroidetes and Acidobacteria were the most abundant phyla. At the genus level, Massilia (taxon with more than 50% of the sequences remaining constant during the 30 h of decay), Pantoea, Naxibacter, Enterobacter, Raoultella and Klebsiella were identified, forming the carposphere bacterial microbiota of AF. AF is fibre-rich and Massilia bacteria could find a large quantity of substrate for its growth through cellulase production. Beta diversity showed that the quality parameters of AF (pH, soluble solids, titratable acidity and lipids) and elemental analysis (C, N, H and C/N ratio) were unable to drive microbial patterns in AF. This research offers new insight into the indigenous bacterial community composition on AF as a function of spontaneous postharvest decay.
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Full text: Available Index: LILACS (Americas) Main subject: Bacteria / Euterpe / Fruit Language: English Journal: Braz. j. microbiol Journal subject: Microbiology Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Pará/BR / Universidade Federal do Pará,/BR

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Full text: Available Index: LILACS (Americas) Main subject: Bacteria / Euterpe / Fruit Language: English Journal: Braz. j. microbiol Journal subject: Microbiology Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal do Pará/BR / Universidade Federal do Pará,/BR