Quality improvement and geographical indication of cachaça (Brazilian spirit) by using locally selected yeast strains
Journal article, 2016

Aims
In order to improve the quality and to create a biological basis for obtainment of the protected denomination of origin (PDO), indigenous yeast were isolated and characterized for use in Salinas city (the Brazilian region of quality cachaça production).
Material and methods
Seven thousand and two hundred yeast colonies from 15 Salinas city distilleries were screened based on their fermentative behaviour and the physicochemical composition of cachaça. Molecular polymorphic analyses were performed to characterize these isolates.
Results
Two Saccharomyces cerevisiae strains (nos. 678 and 680) showed appropriate characteristics to use in the cachaça production: low levels of acetaldehyde and methanol, and high ethyl lactate/ethyl acetate ratio respectively. They also presented polymorphic characteristics more closely related between themselves even when compared to other strains from Salinas.
Conclusions
The application of selected yeast to cachaça production can contribute for the improvement of the quality product as well as be used as a natural marker for PDO.
Significance and Impact of the Study
This study suggests that the use of selected yeast strains could contribute to obtain a cachaça similar to those produced traditionally, while getting wide acceptation in the market, yet presenting more homogeneous organoleptic characteristics, and thus contributing to the PDO implementation.

Author

E.A. Barbosa

Federal University of Ouro Preto

M.T. Souza

Federal University of Ouro Preto

R.H.S. Diniz

Federal University of Ouro Preto

Fernanda Godoy-Santos

Federal University of Ouro Preto

Fábio Luis Da Silva Faria Oliveira

Federal University of Ouro Preto

L.F.M. Correa

Federal University of Ouro Preto

F. Alvarez

M.X. Coutrim

R.J.C.F. Afonso

I.M. Castro

Federal University of Ouro Preto

R.L. Brandão

Federal University of Ouro Preto

Journal of Applied Microbiology

1364-5072 (ISSN) 1365-2672 (eISSN)

Vol. 121 4 1038-1051

Subject Categories

Pharmaceutical Sciences

Microbiology in the medical area

Nutrition and Dietetics

DOI

10.1111/jam.13216

More information

Latest update

4/9/2021 6