Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions
Abstract Polysaccharides such as agar, guar gum, starch, and xylan were hydrolyzed to produce mono‐ and oligosaccharides under hydrothermal conditions with and without carbon dioxide in a small batch reactor. The molecular weight distributions of the polysaccharide hydrolyzates shifted to lower mole...
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crwiley:10.1021/bp050214q 2024-06-02T08:05:12+00:00 Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions Miyazawa, Tetsuya Funazukuri, Toshitaka 2005 http://dx.doi.org/10.1021/bp050214q https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1021%2Fbp050214q https://onlinelibrary.wiley.com/doi/full/10.1021/bp050214q en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Biotechnology Progress volume 21, issue 6, page 1782-1785 ISSN 8756-7938 1520-6033 journal-article 2005 crwiley https://doi.org/10.1021/bp050214q 2024-05-06T07:04:33Z Abstract Polysaccharides such as agar, guar gum, starch, and xylan were hydrolyzed to produce mono‐ and oligosaccharides under hydrothermal conditions with and without carbon dioxide in a small batch reactor. The molecular weight distributions of the polysaccharide hydrolyzates shifted to lower molecular weights by increasing the carbon dioxide load, corresponding to higher pressures of carbon dioxide. For example, the yield of glucose produced from the hydrolysis of starch at 200 °C was increased significantly from 3.7% to 53.0% (on a carbon weight basis) of the initial polysaccharide by increasing carbon dioxide load in a reaction time of 15 min. Carbonic acid generated from water and carbon dioxide appeared to lower the pH of high‐temperature and high‐pressure water. Polysaccharide hydrolysis under hydrothermal conditions in the presence of carbon dioxide is an environmentally benign method to produce mono‐ and oligosaccharides because the process does not require the use of conventional acids and bases followed by neutralization and separation. Article in Journal/Newspaper Carbonic acid Wiley Online Library Biotechnology Progress 21 6 1782 1785 |
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English |
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Abstract Polysaccharides such as agar, guar gum, starch, and xylan were hydrolyzed to produce mono‐ and oligosaccharides under hydrothermal conditions with and without carbon dioxide in a small batch reactor. The molecular weight distributions of the polysaccharide hydrolyzates shifted to lower molecular weights by increasing the carbon dioxide load, corresponding to higher pressures of carbon dioxide. For example, the yield of glucose produced from the hydrolysis of starch at 200 °C was increased significantly from 3.7% to 53.0% (on a carbon weight basis) of the initial polysaccharide by increasing carbon dioxide load in a reaction time of 15 min. Carbonic acid generated from water and carbon dioxide appeared to lower the pH of high‐temperature and high‐pressure water. Polysaccharide hydrolysis under hydrothermal conditions in the presence of carbon dioxide is an environmentally benign method to produce mono‐ and oligosaccharides because the process does not require the use of conventional acids and bases followed by neutralization and separation. |
format |
Article in Journal/Newspaper |
author |
Miyazawa, Tetsuya Funazukuri, Toshitaka |
spellingShingle |
Miyazawa, Tetsuya Funazukuri, Toshitaka Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
author_facet |
Miyazawa, Tetsuya Funazukuri, Toshitaka |
author_sort |
Miyazawa, Tetsuya |
title |
Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
title_short |
Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
title_full |
Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
title_fullStr |
Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
title_full_unstemmed |
Polysaccharide Hydrolysis Accelerated by Adding Carbon Dioxide under Hydrothermal Conditions |
title_sort |
polysaccharide hydrolysis accelerated by adding carbon dioxide under hydrothermal conditions |
publisher |
Wiley |
publishDate |
2005 |
url |
http://dx.doi.org/10.1021/bp050214q https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1021%2Fbp050214q https://onlinelibrary.wiley.com/doi/full/10.1021/bp050214q |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Biotechnology Progress volume 21, issue 6, page 1782-1785 ISSN 8756-7938 1520-6033 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1021/bp050214q |
container_title |
Biotechnology Progress |
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21 |
container_issue |
6 |
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1782 |
op_container_end_page |
1785 |
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1800749985176748032 |