HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION
Xylitol can be obtained from wheat straw hemicellulose containing a high content of xylan. This study describes a new system of hydrolysis, utilizing a mixed solution of formic acid and hydrochloric acid in which xylan can be hydrolyzed effectively. The hydrolysate contains a high content of formic...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2009-05-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_04_2_0674_Hydrolysis_Wheat_Straw_Hemi/370 |
| _version_ | 1831804858414399488 |
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| author | Junping Zhuang Ying Liu Zhen Wu Yong Sun Lu Lin |
| author_facet | Junping Zhuang Ying Liu Zhen Wu Yong Sun Lu Lin |
| author_sort | Junping Zhuang |
| collection | DOAJ |
| description | Xylitol can be obtained from wheat straw hemicellulose containing a high content of xylan. This study describes a new system of hydrolysis, utilizing a mixed solution of formic acid and hydrochloric acid in which xylan can be hydrolyzed effectively. The hydrolysate contains a high content of formic acid, which markedly inhibits the fermentation. One of the most efficient methods for removing inhibiting compounds is treatment of the hydrolysate with ion-exchange resins. Formate can be removed by a factor of 77.78%, and furfural, acetic acid, phenolic compounds can be removed by 90.36%, 96.29%, and 77.44%, respectively after the hydrolysate has been treated with excess Ca(OH)2 and D311 ion-exchange resin. The xylose from the hydrolysis process can be fermented by Candida tropicalis strain (AS2.1776) to produce xylitol with a yield of 41.88 % (xylitol/xylose). |
| first_indexed | 2024-12-22T19:14:40Z |
| format | Article |
| id | doaj.art-7ca70b1ea46f40208b09efb564e978f1 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-22T19:14:40Z |
| publishDate | 2009-05-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-7ca70b1ea46f40208b09efb564e978f12022-12-21T18:15:34ZengNorth Carolina State UniversityBioResources1930-21262009-05-0142674686HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTIONJunping ZhuangYing LiuZhen WuYong SunLu LinXylitol can be obtained from wheat straw hemicellulose containing a high content of xylan. This study describes a new system of hydrolysis, utilizing a mixed solution of formic acid and hydrochloric acid in which xylan can be hydrolyzed effectively. The hydrolysate contains a high content of formic acid, which markedly inhibits the fermentation. One of the most efficient methods for removing inhibiting compounds is treatment of the hydrolysate with ion-exchange resins. Formate can be removed by a factor of 77.78%, and furfural, acetic acid, phenolic compounds can be removed by 90.36%, 96.29%, and 77.44%, respectively after the hydrolysate has been treated with excess Ca(OH)2 and D311 ion-exchange resin. The xylose from the hydrolysis process can be fermented by Candida tropicalis strain (AS2.1776) to produce xylitol with a yield of 41.88 % (xylitol/xylose).http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_04_2_0674_Hydrolysis_Wheat_Straw_Hemi/370Straw hydrolysateFormic acidXyloseXylitolFermentation |
| spellingShingle | Junping Zhuang Ying Liu Zhen Wu Yong Sun Lu Lin HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION BioResources Straw hydrolysate Formic acid Xylose Xylitol Fermentation |
| title | HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION |
| title_full | HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION |
| title_fullStr | HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION |
| title_full_unstemmed | HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION |
| title_short | HYDROLYSIS OF WHEAT STRAW HEMICELLULOSE AND DETOXIFICATION OF THE HYDROLYSATE FOR XYLITOL PRODUCTION |
| title_sort | hydrolysis of wheat straw hemicellulose and detoxification of the hydrolysate for xylitol production |
| topic | Straw hydrolysate Formic acid Xylose Xylitol Fermentation |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/viewFile/BioRes_04_2_0674_Hydrolysis_Wheat_Straw_Hemi/370 |
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