Influencing Factors for Alkaline Degradation of Cellulose

Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influe...
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Autor*in:	Qun Li [verfasserIn] Aijiao Wang [verfasserIn] Wenhui Ding [verfasserIn] Yujia Zhang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	Alkaline degradation; MCC; Metal ions; FTIR

Übergeordnetes Werk:	In: BioResources - North Carolina State University, 2018, 12(2017), 1, Seite 1263-1272
Übergeordnetes Werk:	volume:12 ; year:2017 ; number:1 ; pages:1263-1272

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.15376/biores.12.1.1263-1272

Katalog-ID:	DOAJ027727807

Internformat


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allfields	10.15376/biores.12.1.1263-1272 doi (DE-627)DOAJ027727807 (DE-599)DOAJ420b105b103e47869cd0d636efb4020d DE-627 ger DE-627 rakwb eng TP248.13-248.65 Qun Li verfasserin aut Influencing Factors for Alkaline Degradation of Cellulose 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions. Alkaline degradation; MCC; Metal ions; FTIR Biotechnology Aijiao Wang verfasserin aut Wenhui Ding verfasserin aut Yujia Zhang verfasserin aut In BioResources North Carolina State University, 2018 12(2017), 1, Seite 1263-1272 (DE-627)513216707 (DE-600)2238238-0 19302126 nnns volume:12 year:2017 number:1 pages:1263-1272 https://doi.org/10.15376/biores.12.1.1263-1272 kostenfrei https://doaj.org/article/420b105b103e47869cd0d636efb4020d kostenfrei http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2017 1 1263-1272
spelling	10.15376/biores.12.1.1263-1272 doi (DE-627)DOAJ027727807 (DE-599)DOAJ420b105b103e47869cd0d636efb4020d DE-627 ger DE-627 rakwb eng TP248.13-248.65 Qun Li verfasserin aut Influencing Factors for Alkaline Degradation of Cellulose 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions. Alkaline degradation; MCC; Metal ions; FTIR Biotechnology Aijiao Wang verfasserin aut Wenhui Ding verfasserin aut Yujia Zhang verfasserin aut In BioResources North Carolina State University, 2018 12(2017), 1, Seite 1263-1272 (DE-627)513216707 (DE-600)2238238-0 19302126 nnns volume:12 year:2017 number:1 pages:1263-1272 https://doi.org/10.15376/biores.12.1.1263-1272 kostenfrei https://doaj.org/article/420b105b103e47869cd0d636efb4020d kostenfrei http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2017 1 1263-1272
allfields_unstemmed	10.15376/biores.12.1.1263-1272 doi (DE-627)DOAJ027727807 (DE-599)DOAJ420b105b103e47869cd0d636efb4020d DE-627 ger DE-627 rakwb eng TP248.13-248.65 Qun Li verfasserin aut Influencing Factors for Alkaline Degradation of Cellulose 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions. Alkaline degradation; MCC; Metal ions; FTIR Biotechnology Aijiao Wang verfasserin aut Wenhui Ding verfasserin aut Yujia Zhang verfasserin aut In BioResources North Carolina State University, 2018 12(2017), 1, Seite 1263-1272 (DE-627)513216707 (DE-600)2238238-0 19302126 nnns volume:12 year:2017 number:1 pages:1263-1272 https://doi.org/10.15376/biores.12.1.1263-1272 kostenfrei https://doaj.org/article/420b105b103e47869cd0d636efb4020d kostenfrei http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2017 1 1263-1272
allfieldsGer	10.15376/biores.12.1.1263-1272 doi (DE-627)DOAJ027727807 (DE-599)DOAJ420b105b103e47869cd0d636efb4020d DE-627 ger DE-627 rakwb eng TP248.13-248.65 Qun Li verfasserin aut Influencing Factors for Alkaline Degradation of Cellulose 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions. Alkaline degradation; MCC; Metal ions; FTIR Biotechnology Aijiao Wang verfasserin aut Wenhui Ding verfasserin aut Yujia Zhang verfasserin aut In BioResources North Carolina State University, 2018 12(2017), 1, Seite 1263-1272 (DE-627)513216707 (DE-600)2238238-0 19302126 nnns volume:12 year:2017 number:1 pages:1263-1272 https://doi.org/10.15376/biores.12.1.1263-1272 kostenfrei https://doaj.org/article/420b105b103e47869cd0d636efb4020d kostenfrei http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2017 1 1263-1272
allfieldsSound	10.15376/biores.12.1.1263-1272 doi (DE-627)DOAJ027727807 (DE-599)DOAJ420b105b103e47869cd0d636efb4020d DE-627 ger DE-627 rakwb eng TP248.13-248.65 Qun Li verfasserin aut Influencing Factors for Alkaline Degradation of Cellulose 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions. Alkaline degradation; MCC; Metal ions; FTIR Biotechnology Aijiao Wang verfasserin aut Wenhui Ding verfasserin aut Yujia Zhang verfasserin aut In BioResources North Carolina State University, 2018 12(2017), 1, Seite 1263-1272 (DE-627)513216707 (DE-600)2238238-0 19302126 nnns volume:12 year:2017 number:1 pages:1263-1272 https://doi.org/10.15376/biores.12.1.1263-1272 kostenfrei https://doaj.org/article/420b105b103e47869cd0d636efb4020d kostenfrei http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei https://doaj.org/toc/1930-2126 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 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_2031 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2061 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2017 1 1263-1272
language	English
source	In BioResources 12(2017), 1, Seite 1263-1272 volume:12 year:2017 number:1 pages:1263-1272
sourceStr	In BioResources 12(2017), 1, Seite 1263-1272 volume:12 year:2017 number:1 pages:1263-1272
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Alkaline degradation; MCC; Metal ions; FTIR Biotechnology
isfreeaccess_bool	true
container_title	BioResources
authorswithroles_txt_mv	Qun Li @@aut@@ Aijiao Wang @@aut@@ Wenhui Ding @@aut@@ Yujia Zhang @@aut@@
publishDateDaySort_date	2017-01-01T00:00:00Z
hierarchy_top_id	513216707
id	DOAJ027727807
language_de	englisch
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callnumber-first	T - Technology
author	Qun Li
spellingShingle	Qun Li misc TP248.13-248.65 misc Alkaline degradation; MCC; Metal ions; FTIR misc Biotechnology Influencing Factors for Alkaline Degradation of Cellulose
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topic_title	TP248.13-248.65 Influencing Factors for Alkaline Degradation of Cellulose Alkaline degradation; MCC; Metal ions; FTIR
topic	misc TP248.13-248.65 misc Alkaline degradation; MCC; Metal ions; FTIR misc Biotechnology
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title	Influencing Factors for Alkaline Degradation of Cellulose
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title_full	Influencing Factors for Alkaline Degradation of Cellulose
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title_sort	influencing factors for alkaline degradation of cellulose
callnumber	TP248.13-248.65
title_auth	Influencing Factors for Alkaline Degradation of Cellulose
abstract	Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions.
abstractGer	Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions.
abstract_unstemmed	Different factors that influence the alkaline degradation of cellulose in the pulping process were considered in this study. The factors were the reaction temperature, reaction time, dosage of NaOH, and metal ions. Microcrystal cellulose (MCC) was applied as the model compound. To measure the influence of different metal ions on the alkaline degradation of cellulose, K+ and Mg2+ were added into the reaction system. The Fourier transform infrared (FTIR) spectra of the MCC in the solution with and without K+ and Mg2+ were analyzed to clarify the reaction mechanism of the alkaline degradation of cellulose and MCC. Alkaline degradation increased with increasing reaction temperature, reaction time, and alkali concentration. When the reaction temperature was above 80 °C, the reaction time was above 2 h, or the alkali content was below 5 g/L, the degradation ratio of MCC decreased. The amount of degraded MCC and the concentration of glucose in the reaction solution exhibited a nearly linear relationship when the alkali quantity increased from 0 g/L to 5 g/L. K+ and Mg2+ had an opposite impact on the alkaline degradation. While the K+ promoted the alkaline degradation of cellulose, the Mg2+ inhibited it, along with an increase of the dosage of the two metal ions.
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title_short	Influencing Factors for Alkaline Degradation of Cellulose
url	https://doi.org/10.15376/biores.12.1.1263-1272 https://doaj.org/article/420b105b103e47869cd0d636efb4020d http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_12_1_1263_Li_Alkaline_Degradation_Cellulose_ https://doaj.org/toc/1930-2126
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up_date	2024-07-03T13:43:12.171Z
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