Determination Of Bacterial Taxonomia Isolates of Cocoa Almonds During
Fermentation In “Saf’s” Agroforestry System In The Amazon.
Abstract
Backgroud: Agroforestry systems (SAFs) are an alternative for
sustainable development as they enable the recovery of degraded areas
and reduce deforestation, contributing to breaking the cycle of
traditional family farming, so common in the Amazon region, which
enables the recovery of soils , the increase of organic matter and soil
fertility. Cocoa beans are grown and fermented in SAFs. According to
researches, the significant appearance of endophytic microorganisms such
as bacteria in the cocoa bean can benefit its production commonly with
fermentative bacteria. The aim of the study was to characterize the
microbiota of cocoa beans during the fermentation process.
Methods: Bacteria isolation was performed from the collected
samples, one of the applied procedures was the scraping of the dried and
fermented cocoa beans. Afterwards, aliquots were subcultured in a Petri
dish with culture medium containing Blood agar and MacConkey agar to
verify bacteria. Cultures were analyzed by counting colony forming units
(CFU/mL). Molecular analyses and Sequencing were realized for described
the diversity microbial Results: DNA sequencing and
phylogenetic analyzes were performed to emphasize microbial morphology
characterization. Gram negative bacilli (Enterobacter spp. and
Citrobacter spp.) and Gram positive bacilli (Bacillus spp.) were found
in cocoa beans after 72 hours of fermentation. Conclusion:
However, this work contributed to the characterization of endophytic
bacteria in cocoa seeds, enabling in-depth studies of in vitro
verification of the potential for biocontrol of these endophytic
bacteria in cocoa cultivation.