Banca de QUALIFICAÇÃO: JHONATAN SPERANDIO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : JHONATAN SPERANDIO
DATA : 13/12/2019
HORA: 14:30
LOCAL: IFC Campus Concórdia
TÍTULO:

Thymus vulgaris essential oil activity against Salmonella enterica serovar Heidelberg isolated from broiler chicken

PALAVRAS-CHAVES:

Antibacterial activity, thyme, thymol, salmonellosis, sanitizer

PÁGINAS: 40
GRANDE ÁREA: Ciências Agrárias
ÁREA: Medicina Veterinária
RESUMO:

Salmonella enterica serovar Heidelberg is often isolated from samples in broiler chickens farms. Its environmental resistance is a factor that harms the entire meat production chain. Altough there is a higher intensification in farms biosecurity procedures, the pressure from the industry to eliminate this pathogen is increasing once salmoneloses can be a problem to the costumers. There are several products with ammonia in its composition that are used for desinfection of poultry shed structures. These products usually have high toxicity to the environment, the animals and people who manipulates it.  The objective of this study was to evaluate the in vitro effects of Thymus vulgaris essential oil, popularly known as thyme, on Salmonella enterica sorovar Heidelberg. Qualitative analysis of the oil revealed thymol (39.94%) and p-Cimene (29.92%) as major compounds by gas chromatography mass spectrometry. Viable plankton cell quantification technique was used for in vitro antibacterial assays. Four different concentrations of T. vulgaris essential oil (0.1%, 0.2%, 0.4% and 0.8%) were tested in 5 strains of S. Heidelberg isolated from broiler chickens farms plus S. Heidelberg ATCC 8623. Antibacterial activity was found from 0.2% concentration, once no growth of colony forming units was verified. These results suggest the possible use of T. vulgaris essential oil as a substitute for commercial products used for disinfection of poultry sheds.   

MEMBROS DA BANCA:
Presidente - 1989957 - ALESSANDRA FARIAS MILLEZI
Interno - 2017813 - RICARDO EVANDRO MENDES
Interna - 2408296 - SORAYA REGINA SACCO