期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 22, 期 11, 页码 1115-1119出版社
SPRINGER
DOI: 10.1007/s11274-006-9151-3
关键词
yeasts; artisanal Canastra cheese; natural starter; proteases; lipases; beta-galactosidades
The aim of this work was to describe the yeast populations present during the manufacturing of Minas cheese of the region of Serra da Canastra, Minas Gerais state, Brazil. Canastra cheese is produced from raw cow's milk at the farmhouse level using artisanal procedures and natural whey cultures as starters. Samples from 10 farms were studied, and they included: raw milk, natural starter, cheese curd before salting and cheese after 5 days of ripening. The most frequent yeasts in whey, curd and cheese were Debaryomyces hansenii, Kluyveromyces lactis, Kodamaea ohmeri and Torulaspora delbrueckii. Many yeast isolates were able to produce proteases, lipases and beta-galactosidades. Production of these enzymes by yeasts in the cheese would contribute to the development of the characteristic flavor and smell during the ripening process.
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