Biotechnological potential of yeast isolates from cachaça : the Brazilian spirit.
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2015
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This study identified phenotypic traits appropriate
for biotechnological applications of 118 yeasts isolated
from cachaça distilleries. Different properties were
verified: capacity to use alternative carbon sources; ability
to tolerate high concentrations of sucrose, ethanol, methanol,
aluminum and zinc as well as different pH values and
foam production. Pichia guilliermondii and Pichia anomala
strains were identified as the most promising ones
for application in the second-generation biofuel industry,
showing ability to grow on high glycerol concentrations.
Other isolates, identified as Saccharomyces cerevisiae, produced
bioethanol comparable to the industrial strains, and
were therefore ideal for use in the first-generation ethanol
industry. Some of these strains also showed high resistance to aluminum, as observed in sugarcane juice, and to intercycle
washings with diluted sulphuric acid, as performed in
the industrial bioethanol production process. In summary,
yeast isolates from cachaça distilleries displayed robustness
and phenotypic plasticity, which makes them interesting
for biotechnological applications.
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Saccharomyces cerevisiae, Pichia anomala, ichia guilliermondii, Cachaça
Citação
CONCEIÇÃO, L. E. F. R. da et al. Biotechnological potential of yeast isolates from cachaça: the Brazilian spirit. Journal of Industrial Microbiology & Biotechnology, v. 42, p. 237-246, 2015. Disponível em: <https://link.springer.com/article/10.1007%2Fs10295-014-1528-y>. Acesso em: 20 mai. 2017.