Data/hora: 07/06/2024 07:06:49

Biblioteca(s): | Epagri-Sede.
Tipo da produção científica: | Artigo em Anais de Congresso / Nota Técnica
Data corrente: | 15/03/2022
Data da última atualização: | 15/03/2022
Autoria: | PINTO, F. O.; LOPESA, T.; VIEIRA, A. M.; OLIVEIRA, R. O.; GOMES, F. F.; FABRICIO, M. F.; AYUB, M. A. Z.; MENDES, S. D. C.; PAGANI, D. M.; VALENTE, P.
Título: | Isolation, Selection and Characterization of Wild Yeasts with Potential for Brewing.
Ano de publicação: | 2022
Fonte/Imprenta: | Journal of the American Society of Brewing Chemists, London, n. 9, p. 1-12, 2022.
Idioma: | Inglês

Conteúdo:

Ninety-two wild yeasts were isolated from different fruits, for possible use in brewing, using the
technological traits of carbohydrate fermentation and hydrogen sulfide production. Twelve yeasts
were selected for identification by sequencing (D1/D2 domain or ITS1-5.8S-ITS2 region) and their
volatile compounds production analyzed using gas chromatography. From these analyses, three
yeasts were chosen for further characterization and beer production. Strains were characterized
by their tolerance to osmotic and ethanol stress, their flocculation profile, growth at different
temperatures, apparent attenuation (percentage of sugars converted into alcohol), estimated ABV
(alcohol by volume) and reducing sugar profile. Beers were analyzed for alcohol content and
sensorial analysis. The isolates CL011 and PB111 (Saccharomyces cerevisiae) and CB341
(Wickerhamomyces anomalus) showed promising properties for brewing, which included high
production of interesting volatile compounds (esters, terpenes, lactones, and C13-norisoprenoids)
by CL011, a neutral profile by PB111, and the production of non-classic beer volatile compounds
by CB341 in a mixed culture

Thesagro: | Beer; Indigenous yeast; mixed inoculum; starter strain.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_50950.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (106847-1) - UPC - AP - DD -  -  -  - DIS