Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk
Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC...
Ausführliche Beschreibung
Autor*in: |
Mou, Hong-Yan [verfasserIn] Feng, Lu [verfasserIn] Huang, Jin [verfasserIn] Qin, Cheng-Rong [verfasserIn] Tang, Lv [verfasserIn] Fan, Hui- Ming [verfasserIn] Liu, Jian-An [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Industrial crops and products - New York, NY [u.a.] : Elsevier, 1992, 197 |
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Übergeordnetes Werk: |
volume:197 |
DOI / URN: |
10.1016/j.indcrop.2023.116592 |
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Katalog-ID: |
ELV066802458 |
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520 | |a Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. | ||
650 | 4 | |a Cotton stalk | |
650 | 4 | |a Xylan | |
650 | 4 | |a Hydrothermal-alkaline treatment | |
650 | 4 | |a Structural characterization | |
700 | 1 | |a Feng, Lu |e verfasserin |4 aut | |
700 | 1 | |a Huang, Jin |e verfasserin |4 aut | |
700 | 1 | |a Qin, Cheng-Rong |e verfasserin |4 aut | |
700 | 1 | |a Tang, Lv |e verfasserin |4 aut | |
700 | 1 | |a Fan, Hui- Ming |e verfasserin |4 aut | |
700 | 1 | |a Liu, Jian-An |e verfasserin |4 aut | |
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allfields |
10.1016/j.indcrop.2023.116592 doi (DE-627)ELV066802458 (ELSEVIER)S0926-6690(23)00356-4 DE-627 ger DE-627 rda eng 630 640 VZ 48.30 bkl Mou, Hong-Yan verfasserin aut Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization Feng, Lu verfasserin aut Huang, Jin verfasserin aut Qin, Cheng-Rong verfasserin aut Tang, Lv verfasserin aut Fan, Hui- Ming verfasserin aut Liu, Jian-An verfasserin aut Enthalten in Industrial crops and products New York, NY [u.a.] : Elsevier, 1992 197 Online-Ressource (DE-627)300894678 (DE-600)1483245-8 (DE-576)259270792 1872-633X nnns volume:197 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 48.30 Natürliche Ressourcen Land- und Forstwirtschaft VZ AR 197 |
spelling |
10.1016/j.indcrop.2023.116592 doi (DE-627)ELV066802458 (ELSEVIER)S0926-6690(23)00356-4 DE-627 ger DE-627 rda eng 630 640 VZ 48.30 bkl Mou, Hong-Yan verfasserin aut Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization Feng, Lu verfasserin aut Huang, Jin verfasserin aut Qin, Cheng-Rong verfasserin aut Tang, Lv verfasserin aut Fan, Hui- Ming verfasserin aut Liu, Jian-An verfasserin aut Enthalten in Industrial crops and products New York, NY [u.a.] : Elsevier, 1992 197 Online-Ressource (DE-627)300894678 (DE-600)1483245-8 (DE-576)259270792 1872-633X nnns volume:197 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 48.30 Natürliche Ressourcen Land- und Forstwirtschaft VZ AR 197 |
allfields_unstemmed |
10.1016/j.indcrop.2023.116592 doi (DE-627)ELV066802458 (ELSEVIER)S0926-6690(23)00356-4 DE-627 ger DE-627 rda eng 630 640 VZ 48.30 bkl Mou, Hong-Yan verfasserin aut Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization Feng, Lu verfasserin aut Huang, Jin verfasserin aut Qin, Cheng-Rong verfasserin aut Tang, Lv verfasserin aut Fan, Hui- Ming verfasserin aut Liu, Jian-An verfasserin aut Enthalten in Industrial crops and products New York, NY [u.a.] : Elsevier, 1992 197 Online-Ressource (DE-627)300894678 (DE-600)1483245-8 (DE-576)259270792 1872-633X nnns volume:197 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 48.30 Natürliche Ressourcen Land- und Forstwirtschaft VZ AR 197 |
allfieldsGer |
10.1016/j.indcrop.2023.116592 doi (DE-627)ELV066802458 (ELSEVIER)S0926-6690(23)00356-4 DE-627 ger DE-627 rda eng 630 640 VZ 48.30 bkl Mou, Hong-Yan verfasserin aut Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization Feng, Lu verfasserin aut Huang, Jin verfasserin aut Qin, Cheng-Rong verfasserin aut Tang, Lv verfasserin aut Fan, Hui- Ming verfasserin aut Liu, Jian-An verfasserin aut Enthalten in Industrial crops and products New York, NY [u.a.] : Elsevier, 1992 197 Online-Ressource (DE-627)300894678 (DE-600)1483245-8 (DE-576)259270792 1872-633X nnns volume:197 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 48.30 Natürliche Ressourcen Land- und Forstwirtschaft VZ AR 197 |
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10.1016/j.indcrop.2023.116592 doi (DE-627)ELV066802458 (ELSEVIER)S0926-6690(23)00356-4 DE-627 ger DE-627 rda eng 630 640 VZ 48.30 bkl Mou, Hong-Yan verfasserin aut Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization Feng, Lu verfasserin aut Huang, Jin verfasserin aut Qin, Cheng-Rong verfasserin aut Tang, Lv verfasserin aut Fan, Hui- Ming verfasserin aut Liu, Jian-An verfasserin aut Enthalten in Industrial crops and products New York, NY [u.a.] : Elsevier, 1992 197 Online-Ressource (DE-627)300894678 (DE-600)1483245-8 (DE-576)259270792 1872-633X nnns volume:197 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 48.30 Natürliche Ressourcen Land- und Forstwirtschaft VZ AR 197 |
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630 640 VZ 48.30 bkl Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk Cotton stalk Xylan Hydrothermal-alkaline treatment Structural characterization |
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ddc 630 bkl 48.30 misc Cotton stalk misc Xylan misc Hydrothermal-alkaline treatment misc Structural characterization |
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ddc 630 bkl 48.30 misc Cotton stalk misc Xylan misc Hydrothermal-alkaline treatment misc Structural characterization |
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ddc 630 bkl 48.30 misc Cotton stalk misc Xylan misc Hydrothermal-alkaline treatment misc Structural characterization |
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Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk |
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Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk |
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Mou, Hong-Yan |
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Industrial crops and products |
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eng |
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2023 |
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Mou, Hong-Yan Feng, Lu Huang, Jin Qin, Cheng-Rong Tang, Lv Fan, Hui- Ming Liu, Jian-An |
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Mou, Hong-Yan |
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hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk |
title_auth |
Hydrothermal combined alkali pretreatment for fractionation the xylan from cotton stalk |
abstract |
Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. |
abstractGer |
Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. |
abstract_unstemmed |
Hydrothermal combined alkaline method was conducted to improve the yield of xylan from cotton stalk in this study. The extraction process was optimized by single factor and orthogonal experiments. The maximum yield of recovered xylan was 67.75 ± 0.27% obtaining from hydrothermal extraction of 170 ºC, 60 min, 1:10 and alkaline extraction with 4% alkali at 65 ºC for 2 h with S/L of 1:10. The physic-chemical properties of water-soluble xylan (Xwater) and alkali-soluble xylan (Xalkali) were determined by Fourier transform infrared spectroscopy, Gel permeation chromatography, thermogravimetric analysis and 2D nuclear magnetic resonance (2D NMR). The observed xylan was composed of (1→4)-β-d-xylp as main chain, β-glycosidic bond, and 4-O-methyl-α-D-glucuronic acid as branch chain. Xalkali also contains α-L-arabinose side chains. And the molecular weight of Xalkali was higher than that of Xwater, indicating that alkali pretreatment had a positive protective effect on xylan structure compared with hydrothermal pretreatment. The proposed combined pretreatment method has established a reliable xylan separation method, which has high industrial application feasibility. |
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title_short |
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Feng, Lu Huang, Jin Qin, Cheng-Rong Tang, Lv Fan, Hui- Ming Liu, Jian-An |
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