| Literature DB >> 25540045 |
Luís Eduardo Fernandes Rodrigues da Conceição1, Margarete Alice Fontes Saraiva, Raphael Hermano Santos Diniz, Juliana Oliveira, Gustavo Dimas Barbosa, Florencia Alvarez, Lygia Fátima da Mata Correa, Hygor Mezadri, Mauricio Xavier Coutrim, Robson José de Cássia Franco Afonso, Candida Lucas, Ieso Miranda Castro, Rogelio Lopes Brandão.
Abstract
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 inter-cycle 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.Entities:
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Year: 2014 PMID： 25540045 DOI： 10.1007/s10295-014-1528-y
Source DB: PubMed Journal: J Ind Microbiol Biotechnol ISSN： 1367-5435 Impact factor: 3.346