Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan
Dimethylsulfoxide (DMSO) extraction is commonly used to study the chemical structures of original xylan in the plant cell wall, since the DMSO can preserve the original structure of the xylan as much as possible during the extracting process. In addition, the DMSO-extracted xylans have unique proper...
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KeAi Communications Co., Ltd.
2022-08-01
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| Series: | Journal of Bioresources and Bioproducts |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2369969822000391 |
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| author | Mingquan Zhang Jamshed Bobokalonov Abduvali Dzhonmurodov Zhouyang Xiang |
| author_facet | Mingquan Zhang Jamshed Bobokalonov Abduvali Dzhonmurodov Zhouyang Xiang |
| author_sort | Mingquan Zhang |
| collection | DOAJ |
| description | Dimethylsulfoxide (DMSO) extraction is commonly used to study the chemical structures of original xylan in the plant cell wall, since the DMSO can preserve the original structure of the xylan as much as possible during the extracting process. In addition, the DMSO-extracted xylans have unique properties allowing their potential applications in emulsifying or filming materials. However, the yield of DMSO-extracted xylan is always low and the effects of different DMSO extraction conditions on the chemical compositions of xylan have not been fully studied, which greatly hinders its researches and applications. In this study, we have found that extensive delignification before DMSO extraction results in destruction of lignin-carbohydrate complex (LCC), leading to xylan yield and xylose unit content increased by up to 220% and 20%, respectively. Tert-butanol washing of the holocellulose can further increase the DMSO extracted xylan yield by ∼10%. The yield of xylan extracted by the DMSO at 80 °C for 7 h was obviously higher than that at room temperature for 3 d by 30%–40%. Thermal analysis showed that the xylans extracted at different conditions had thermal stability without obvious differences. The results indicate that the DMSO-extracted xylan with a high yield, a high purity and a high degree of acetylation can be extracted at a high delignification level, a high reaction temperature and a short reaction time. This study is of great significance for studying xylan structure-property relationships and promoting the applications of DMSO-extracted xylan. |
| first_indexed | 2024-04-09T21:57:37Z |
| format | Article |
| id | doaj.art-a07973b2b4e544ec84f44b4b847e6c6c |
| institution | Directory Open Access Journal |
| issn | 2369-9698 |
| language | English |
| last_indexed | 2024-04-09T21:57:37Z |
| publishDate | 2022-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Bioresources and Bioproducts |
| spelling | doaj.art-a07973b2b4e544ec84f44b4b847e6c6c2023-03-24T04:22:46ZengKeAi Communications Co., Ltd.Journal of Bioresources and Bioproducts2369-96982022-08-0173211219Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylanMingquan Zhang0Jamshed Bobokalonov1Abduvali Dzhonmurodov2Zhouyang Xiang3State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, ChinaV.I. Nikitin Institute of Chemistry, National Academy of Sciences of Tajikistan, Dushanbe 734063, TajikistanV.I. Nikitin Institute of Chemistry, National Academy of Sciences of Tajikistan, Dushanbe 734063, TajikistanState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; Corresponding author.Dimethylsulfoxide (DMSO) extraction is commonly used to study the chemical structures of original xylan in the plant cell wall, since the DMSO can preserve the original structure of the xylan as much as possible during the extracting process. In addition, the DMSO-extracted xylans have unique properties allowing their potential applications in emulsifying or filming materials. However, the yield of DMSO-extracted xylan is always low and the effects of different DMSO extraction conditions on the chemical compositions of xylan have not been fully studied, which greatly hinders its researches and applications. In this study, we have found that extensive delignification before DMSO extraction results in destruction of lignin-carbohydrate complex (LCC), leading to xylan yield and xylose unit content increased by up to 220% and 20%, respectively. Tert-butanol washing of the holocellulose can further increase the DMSO extracted xylan yield by ∼10%. The yield of xylan extracted by the DMSO at 80 °C for 7 h was obviously higher than that at room temperature for 3 d by 30%–40%. Thermal analysis showed that the xylans extracted at different conditions had thermal stability without obvious differences. The results indicate that the DMSO-extracted xylan with a high yield, a high purity and a high degree of acetylation can be extracted at a high delignification level, a high reaction temperature and a short reaction time. This study is of great significance for studying xylan structure-property relationships and promoting the applications of DMSO-extracted xylan.http://www.sciencedirect.com/science/article/pii/S2369969822000391XylanDimethylsulfoxide (DMSO) extractionBirchwoodYieldChemical composition |
| spellingShingle | Mingquan Zhang Jamshed Bobokalonov Abduvali Dzhonmurodov Zhouyang Xiang Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan Journal of Bioresources and Bioproducts Xylan Dimethylsulfoxide (DMSO) extraction Birchwood Yield Chemical composition |
| title | Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan |
| title_full | Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan |
| title_fullStr | Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan |
| title_full_unstemmed | Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan |
| title_short | Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan |
| title_sort | optimizing yield and chemical compositions of dimethylsulfoxide extracted birchwood xylan |
| topic | Xylan Dimethylsulfoxide (DMSO) extraction Birchwood Yield Chemical composition |
| url | http://www.sciencedirect.com/science/article/pii/S2369969822000391 |
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