Evaluation of different methods for efficient extraction of hemicelluloses leaves and tops of sugarcane
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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional de Colombia
2018
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| author | Luz Marina Flórez-Pardo |
| author_facet | Luz Marina Flórez-Pardo |
| contents | Evaluation of different methods for efficient extraction of hemicelluloses leaves and tops of sugarcane Luz Marina Flórez-Pardo Andrea González-Córdoba Jorge Enrique López-Galán Ingeniería bioethanol polysaccharides lignocellulosic residue There are around 9 million tons of sugarcane crop residue per year in Colombia that are not recovered but they have potential to make value-added products. It is necessary to know the residue components, especially those from hemicellulose, to clarify the type of process to obtain the hemicellulose monosaccharides and isolate them efficiently. In order to separate pure hemicelluloses, five processes of extraction from tops and leaves of CC 8592, CC 8475, and V 7151 sugarcane varieties were studied. After evaluating exposure to dewaxing using ethanol and chloroform-methanol mixtures, residues were subjected to different concentrations of hydrogen peroxide and acidified sodium chlorite to achieve delignification. Additionally, procedures of extraction were developed with sodium hydroxide, potassium hydroxide, and precipitation. Chloroform-methanol dewaxing and sodium chlorite with sodium borohydride delignification allowed to achieve the highest extraction yield, with hemicellulose recovery ranging from 0.20-0.34 g hemicellulose/g dry residue in the varieties studied. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49655628002 https://www.redalyc.org/journal/496/49655628002/ https://www.redalyc.org/journal/496/49655628002/html/ https://www.redalyc.org/journal/496/49655628002/49655628002.epub https://www.redalyc.org/journal/496/49655628002/movil 10.15446/dyna.v85n204.66626 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.204 Vol.85 |
| format | Artículo científico |
| id | redalyc_49655628002 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Evaluation of different methods for efficient extraction of hemicelluloses leaves and tops of sugarcane Luz Marina Flórez-Pardo Ingeniería bioethanol polysaccharides lignocellulosic residue Evaluation of different methods for efficient extraction of hemicelluloses leaves and tops of sugarcane Luz Marina Flórez-Pardo Andrea González-Córdoba Jorge Enrique López-Galán Ingeniería bioethanol polysaccharides lignocellulosic residue There are around 9 million tons of sugarcane crop residue per year in Colombia that are not recovered but they have potential to make value-added products. It is necessary to know the residue components, especially those from hemicellulose, to clarify the type of process to obtain the hemicellulose monosaccharides and isolate them efficiently. In order to separate pure hemicelluloses, five processes of extraction from tops and leaves of CC 8592, CC 8475, and V 7151 sugarcane varieties were studied. After evaluating exposure to dewaxing using ethanol and chloroform-methanol mixtures, residues were subjected to different concentrations of hydrogen peroxide and acidified sodium chlorite to achieve delignification. Additionally, procedures of extraction were developed with sodium hydroxide, potassium hydroxide, and precipitation. Chloroform-methanol dewaxing and sodium chlorite with sodium borohydride delignification allowed to achieve the highest extraction yield, with hemicellulose recovery ranging from 0.20-0.34 g hemicellulose/g dry residue in the varieties studied. 2018 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49655628002 https://www.redalyc.org/journal/496/49655628002/ https://www.redalyc.org/journal/496/49655628002/html/ https://www.redalyc.org/journal/496/49655628002/49655628002.epub https://www.redalyc.org/journal/496/49655628002/movil 10.15446/dyna.v85n204.66626 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.204 Vol.85 |
| title | Evaluation of different methods for efficient extraction of hemicelluloses leaves and tops of sugarcane |
| topic | Ingeniería bioethanol polysaccharides lignocellulosic residue |
| url | https://www.redalyc.org/articulo.oa?id=49655628002 https://www.redalyc.org/journal/496/49655628002/ https://www.redalyc.org/journal/496/49655628002/html/ https://www.redalyc.org/journal/496/49655628002/49655628002.epub https://www.redalyc.org/journal/496/49655628002/movil |