| Registro completo |
| Provedor de dados: |
Biological Sciences
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| País: |
Brazil
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| Título: |
Optimized acid hydrolysis of the polysaccharides from the seaweed Solieria filiformis (Kützing) P.W. Gabrielson for bioethanol production
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| Autores: |
Castro, George Meredite Cunha de
Benevides, Norma Maria Barros
Cabral, Maulori Curié
Miranda, Rafael de Souza
Gomes Filho, Enéas
Rocha, Maria Valderez Ponte
Araújo, Marjory Lima Holanda
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| Data: |
2017-11-24
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| Ano: |
2017
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| Palavras-chave: |
Ciências da Vida Bioquímica iota-carrageenan
Cellulose
Galactose
Kinetic parameters
Fermentation
Acclimation
Sulfuric acid. Biotecnologia
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| Resumo: |
The seaweeds are bio-resource rich in sulfated and neutral polysaccharides. The tropical seaweed species used in this study (Solieria filiformis), after dried, shows 65.8% (w/w) carbohydrate, 9.6% (w/w) protein, 1.7% (w/w) lipid, 7.0% (w/w) moisture and 15.9% (w/w) ash. The dried seaweed was easily hydrolyzed under mild conditions (0.5 M sulfuric acid, 20 min.), generating fermentable monosaccharides with a maximum hydrolysis efficiency of 63.21%. Galactose and glucose present in the hydrolyzed were simultaneously fermented by Saccharomyces cerevisiae when the yeast was acclimated to galactose and cultivated in broth containing only galactose. The kinetic parameters of the fermentation of the seaweed hydrolyzed were Y(P⁄S) = 0.48 ± 0.02 g.g−1, PP = 0.27 ± 0.04 g.L−1.h−1, h = 94.1%, representing a 41% increase in bioethanol productivity. Therefore, S. filiformis was a promising renewable resource of polysaccharides easily hydrolyzed, generating a broth rich in fermentable monosaccharides for ethanol production.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37227
10.4025/actascibiolsci.v39i4.37227
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| Editor: |
Universidade Estadual De Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/37227/pdf
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Biological Sciences; v. 39, n. 4 (2017); 423-430
Acta Scientiarum. Biological Sciences; v. 39, n. 4 (2017); 423-430
1807-863X
1679-9283
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| Direitos: |
Direitos autorais 2017 Acta Scientiarum. Biological Sciences
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