Probiotic potential of Enterococcus hirae in goat milk and its survival in canine gastrointestinal conditions simulated in vitro.
In canine nutrition, the use of goat nutraceutical dairy products is an innovative proposal. Therefore, the objective of this study was to prepare fermented goat milk with probiotic potential in dogs in an in vitro model. A total of 40 lactic acid bacteria (LAB) species were grown, of which 30 were CAP isolates originally from goat milk and 10 were CAN isolates originally from fecal material of newborn dogs. The isolates were selected based on resistance to the simulated canine gastrointestinal condition and acidifying ability. After this preliminary screening, the analyses were performed regarding β-galactosidase and exopolysaccharide formation, diacetyl production, adhesion proteins Mub and mapa, hydrophobicity, DPPH assay, virulence and antibiotic resistance. With these evaluations, four LAB isolates were identified using sequencing of the 16S rRNA gene. These were identified as Enterococcus hirae and were used to produce fermented goat milk. For statistical analysis, the data were analyzed using the Scott-Knott test and also submitted to analysis of variance and the Tukey test (P < 0.05). In the evaluation of goat milk fermented with E. hirae and control, over the 36-day storage period there was a reduction in pH and an increase in acidity, and higher levels of LAB were observed in goat milk fermented with E. hirae. Therefore, both these E. hirae isolates and the fermented goat milk produced showed satisfactory results in vitro, demonstrating probiotic efficiency and food safety for dogs.
['de Castro Santos Melo|Carina|C|', 'da Silva Freire|Angelina|A|', 'Galdeano|Marcela Aragão|MA|', 'da Costa|Camila Fraga|CF|', 'de Oliveira Gonçalves|Anay Priscilla David|APD|', 'Dias|Francesca Silva|FS|', 'Menezes|Daniel Ribeiro|DR|']
D000818:Animals D018407:Bacterial Physiological Phenomena D004285:Dogs D000070076:Enterococcus hirae D005243:Feces D005285:Fermentation D041981:Gastrointestinal Tract D006041:Goats D008892:Milk D019936:Probiotics
Dairy products Dog Functional food Microbiota