Publications by authors named "Ronaldo Kaue Mattos Rocha"

Article Synopsis
  • The study investigates how different stages of periodontal disease in dogs affect their oral microbiota by examining samples from three groups: healthy, gingivitis, and periodontitis.* -
  • Researchers identified and classified 119 bacteria using DNA sequencing, revealing a significant increase of Proteobacteria and certain genera associated with worsening periodontal health, while some other groups decreased.* -
  • Analyses, including phylogenetic trees and biodiversity indexes, demonstrated distinct differences in oral microbiomes between the healthy dogs and those with periodontal diseases, highlighting changes in bacterial populations as the disease progresses.*
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In this study, we followed the yeast and wine behaviour during the second fermentation and subsequent lees ageing of sparkling wines produced by Traditional and Charmat methods at an industrial scale. During this period, we conducted physicochemical, microbiological, gene expression, and marker analyses of characteristics related to wine ageing. Our results show that the yeast behaviour during the fermentation is similar in both methods.

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The physicochemical characteristics and yeasts diversity in honey samples from 17 species of stingless bees of the genera Nannotrigona, Melipona, Plebeia, Scraptotrigona, and Tetragonisca cultivated in Southern Brazil were determined. The sugar content, moisture, water activity, pH, reducing sugars/total sugar ratio, and total yeast population varied significantly among the honey from the different bee species. The highest yeast population was found in the Plebeia's honey samples and correlated with their high water-activity.

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