Title |
Xylitol production by yeasts isolated from rotting wood in the Galápagos Islands, Ecuador, and description of Cyberlindnera galapagoensis f.a., sp. nov.
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Published in |
Antonie van Leeuwenhoek, July 2015
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DOI | 10.1007/s10482-015-0546-8 |
Pubmed ID | |
Authors |
Maria C. Guamán-Burneo, Kelly J. Dussán, Raquel M. Cadete, Monaliza A. M. Cheab, Patricia Portero, Enrique J. Carvajal-Barriga, Sílvio S. da Silva, Carlos A. Rosa |
Abstract |
This study evaluated D-xylose-assimilating yeasts that are associated with rotting wood from the Galápagos Archipelago, Ecuador, for xylitol production from hemicellulose hydrolysates. A total of 140 yeast strains were isolated. Yeasts related to the clades Yamadazyma, Kazachstania, Kurtzmaniella, Lodderomyces, Metschnikowia and Saturnispora were predominant. In culture assays using sugarcane bagasse hemicellulose hydrolysate, Candida tropicalis CLQCA-24SC-125 showed the highest xylitol production, yield and productivity (27.1 g L(-1) xylitol, Y p/s (xyl) = 0.67 g g(-1), Qp = 0.38 g L(-1). A new species of Cyberlindnera, strain CLQCA-24SC-025, was responsible for the second highest xylitol production (24 g L(-1), Y p/s (xyl) = 0.64 g g(-1), Qp = 0.33 g L(-1) h(-1)) on sugarcane hydrolysate. The new xylitol-producing species Cyberlindnera galapagoensis f.a., sp. nov., is proposed to accommodate the strain CLQCA-24SC-025(T) (=UFMG-CM-Y517(T); CBS 13997(T)). The MycoBank number is MB 812171. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
France | 2 | 67% |
Ecuador | 1 | 33% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 3 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Brazil | 1 | 2% |
Unknown | 55 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 12 | 21% |
Student > Master | 9 | 16% |
Student > Bachelor | 9 | 16% |
Professor | 5 | 9% |
Student > Ph. D. Student | 5 | 9% |
Other | 9 | 16% |
Unknown | 7 | 13% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 16 | 29% |
Biochemistry, Genetics and Molecular Biology | 11 | 20% |
Engineering | 7 | 13% |
Chemical Engineering | 5 | 9% |
Immunology and Microbiology | 3 | 5% |
Other | 5 | 9% |
Unknown | 9 | 16% |