Candida kefyr has been considered both a food-spoiling agent and a type of yeast with fermentation properties. In this study, the authors have evaluated the antimicrobial activity of a coconut oil-in-water emulsion associated to the presence of C. kefyr. Fresh coconut kernels were used to obtain the coconut oil-in-water emulsion, the sterile coconut oil-in-water emulsion by decantation, and the coconut oil by means of a heating process. Commercial virgin coconut oil was also used. Agar diffusion, minimal inhibitory concentration and minimal bactericidal concentration (MIC/MBC) techniques were employed to evaluate antimicrobial activity against E. coli and S. epidermidis. The C. kefyr isolate was identified and confirmed. Coconut milk-derived fatty acids were characterized by acid index and thin layer chromatography. Scanning electronic microscopy was performed to evaluate the morphology of the microorganisms. Lipase activity of C. kefyr isolate was also detected. Coconut oil-in-water emulsion associated to C. kefyr was active against both bacteria. Thin layer chromatography confirmed the presence of triglycerides and free fatty acids. The acid index showed higher acidity potential for the coconut oil-in-water emulsion. The microscopic images showed antibacterial action through the formation of membrane holes' and demonstrated yeast shape. All the above show new potentials for C. kefyr and coconut oil-in-water emulsion in food technology.
Objetivou-se realizar uma avaliação da composição florística de mata ciliar reflorestada de um trecho do Córrego Charqueada A1 (área 1) e equiparou-se com área de pastagem do entorno A2 (área 2). A área de estudo foi na cidade Teixeira de Freitas – Bahia. Fez-se o levantamento fitossociológico por meio de parcelas amostrais em ambas as áreas, onde os indivíduos foram identificados em nível de família. Foram encontrados na área A1 (área 1) 12 indivíduosdistribuídos em 7 famílias com predominância do porte arbóreo. Já na A2 encontrou-se 7 indivíduos distribuídos em 5 famílias com predominância do porte herbácea. Pode-se concluir que área de mata ciliar reflorestada existe maior diversidade de famílias e maior abundância de indivíduos comparando-a com a pastagem. E que a área de pastagem está sofrendo uma degradação continuada uma vez que o solo está mais exposto.
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