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Specific modifications of galactomannans
A sample of galactomannan extracted from the seeds of Leucaema leucocephala is modified on a specific position using the reactant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). This method allows oxidation at the C-6 position of galactose and free mannose (not connected to a side group). The kinetics...
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| Published in: | Carbohydrate polymers 2000, Vol.42 (1), p.51-57 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c401t-9abd782ae066a735793a16645dd4c252d1cb0628e6eecc1117d2fa58c60446993 |
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| cites | cdi_FETCH-LOGICAL-c401t-9abd782ae066a735793a16645dd4c252d1cb0628e6eecc1117d2fa58c60446993 |
| container_end_page | 57 |
| container_issue | 1 |
| container_start_page | 51 |
| container_title | Carbohydrate polymers |
| container_volume | 42 |
| creator | Sierakowski, M.R. Milas, M. Desbrières, J. Rinaudo, M. |
| description | A sample of galactomannan extracted from the seeds of
Leucaema leucocephala is modified on a specific position using the reactant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). This method allows oxidation at the C-6 position of galactose and free mannose (not connected to a side group). The kinetics of oxidation is followed under well-defined conditions. Different methods are proposed for the characterization of the modified polysaccharides and NMR spectroscopy is shown to give useful information. New polyelectrolytes are produced with different degrees of oxidation. Successive alkylations on the C-6 sites are investigated. The degree of alkylation obtained remains low but it can be increased easily to reinforce the amphiphilic character. |
| doi_str_mv | 10.1016/S0144-8617(99)00137-X |
| format | article |
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Leucaema leucocephala is modified on a specific position using the reactant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). This method allows oxidation at the C-6 position of galactose and free mannose (not connected to a side group). The kinetics of oxidation is followed under well-defined conditions. Different methods are proposed for the characterization of the modified polysaccharides and NMR spectroscopy is shown to give useful information. New polyelectrolytes are produced with different degrees of oxidation. Successive alkylations on the C-6 sites are investigated. The degree of alkylation obtained remains low but it can be increased easily to reinforce the amphiphilic character.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/S0144-8617(99)00137-X</identifier><identifier>CODEN: CAPOD8</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Agents ; Alkylation ; Applied sciences ; Characterization ; Chemical Sciences ; Exact sciences and technology ; Extraction ; Galactomannan ; Natural polymers ; New polyelectrolyte ; Nuclear magnetic resonance ; Nuclear magnetic resonance spectroscopy ; Oxidation ; Physicochemistry of polymers ; Plants (botany) ; Polyelectrolytes ; Polymers ; Reaction kinetics ; Specific oxidation ; Starch and polysaccharides ; Sugars</subject><ispartof>Carbohydrate polymers, 2000, Vol.42 (1), p.51-57</ispartof><rights>2000 Elsevier Science Ltd</rights><rights>2000 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c401t-9abd782ae066a735793a16645dd4c252d1cb0628e6eecc1117d2fa58c60446993</citedby><cites>FETCH-LOGICAL-c401t-9abd782ae066a735793a16645dd4c252d1cb0628e6eecc1117d2fa58c60446993</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,4022,27921,27922,27923</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=1245220$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01585451$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Sierakowski, M.R.</creatorcontrib><creatorcontrib>Milas, M.</creatorcontrib><creatorcontrib>Desbrières, J.</creatorcontrib><creatorcontrib>Rinaudo, M.</creatorcontrib><title>Specific modifications of galactomannans</title><title>Carbohydrate polymers</title><description>A sample of galactomannan extracted from the seeds of
Leucaema leucocephala is modified on a specific position using the reactant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO). This method allows oxidation at the C-6 position of galactose and free mannose (not connected to a side group). The kinetics of oxidation is followed under well-defined conditions. Different methods are proposed for the characterization of the modified polysaccharides and NMR spectroscopy is shown to give useful information. New polyelectrolytes are produced with different degrees of oxidation. Successive alkylations on the C-6 sites are investigated. The degree of alkylation obtained remains low but it can be increased easily to reinforce the amphiphilic character.</description><subject>Agents</subject><subject>Alkylation</subject><subject>Applied sciences</subject><subject>Characterization</subject><subject>Chemical Sciences</subject><subject>Exact sciences and technology</subject><subject>Extraction</subject><subject>Galactomannan</subject><subject>Natural polymers</subject><subject>New polyelectrolyte</subject><subject>Nuclear magnetic resonance</subject><subject>Nuclear magnetic resonance spectroscopy</subject><subject>Oxidation</subject><subject>Physicochemistry of polymers</subject><subject>Plants (botany)</subject><subject>Polyelectrolytes</subject><subject>Polymers</subject><subject>Reaction kinetics</subject><subject>Specific oxidation</subject><subject>Starch and polysaccharides</subject><subject>Sugars</subject><issn>0144-8617</issn><issn>1879-1344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqFkEFLwzAUx4MoOKcfQdhBZDtU89IkbU4yhjph4GEKu4W3NNVI28ymG_jtbdcxj77Lg8fv_3_wI-Qa6B1QkPdLCpxHqYRkrNSEUoiTaHVCBpAmKoKY81MyOCLn5CKEL9qOBDog4-XGGpc7Myp91m1snK_CyOejDyzQNL7EqsIqXJKzHItgrw57SN6fHt9m82jx-vwymy4iwyk0kcJ1lqQMLZUSk1gkKkaQkoss44YJloFZU8lSK601BgCSjOUoUiMp51KpeEgmfe8nFnpTuxLrH-3R6fl0obsbBZEKLmAHLXvbs5vaf29taHTpgrFFgZX126AZxKlKFW1B0YOm9iHUNj82A9WdQ713qDtBWim9d6hXbe7m8ACDwSKvsTIu_IUZF4x19Q89ZlsxO2drHYyzlbGZq61pdObdP49-AUcLg2o</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>Sierakowski, M.R.</creator><creator>Milas, M.</creator><creator>Desbrières, J.</creator><creator>Rinaudo, M.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope></search><sort><creationdate>2000</creationdate><title>Specific modifications of galactomannans</title><author>Sierakowski, M.R. ; Milas, M. ; Desbrières, J. ; Rinaudo, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c401t-9abd782ae066a735793a16645dd4c252d1cb0628e6eecc1117d2fa58c60446993</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Agents</topic><topic>Alkylation</topic><topic>Applied sciences</topic><topic>Characterization</topic><topic>Chemical Sciences</topic><topic>Exact sciences and technology</topic><topic>Extraction</topic><topic>Galactomannan</topic><topic>Natural polymers</topic><topic>New polyelectrolyte</topic><topic>Nuclear magnetic resonance</topic><topic>Nuclear magnetic resonance spectroscopy</topic><topic>Oxidation</topic><topic>Physicochemistry of polymers</topic><topic>Plants (botany)</topic><topic>Polyelectrolytes</topic><topic>Polymers</topic><topic>Reaction kinetics</topic><topic>Specific oxidation</topic><topic>Starch and polysaccharides</topic><topic>Sugars</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sierakowski, M.R.</creatorcontrib><creatorcontrib>Milas, M.</creatorcontrib><creatorcontrib>Desbrières, J.</creatorcontrib><creatorcontrib>Rinaudo, M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Carbohydrate polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sierakowski, M.R.</au><au>Milas, M.</au><au>Desbrières, J.</au><au>Rinaudo, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Specific modifications of galactomannans</atitle><jtitle>Carbohydrate polymers</jtitle><date>2000</date><risdate>2000</risdate><volume>42</volume><issue>1</issue><spage>51</spage><epage>57</epage><pages>51-57</pages><issn>0144-8617</issn><eissn>1879-1344</eissn><coden>CAPOD8</coden><abstract>A sample of galactomannan extracted from the seeds of
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| fulltext | fulltext |
| identifier | ISSN: 0144-8617 |
| ispartof | Carbohydrate polymers, 2000, Vol.42 (1), p.51-57 |
| issn | 0144-8617 1879-1344 |
| language | eng |
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| source | ScienceDirect Journals |
| subjects | Agents Alkylation Applied sciences Characterization Chemical Sciences Exact sciences and technology Extraction Galactomannan Natural polymers New polyelectrolyte Nuclear magnetic resonance Nuclear magnetic resonance spectroscopy Oxidation Physicochemistry of polymers Plants (botany) Polyelectrolytes Polymers Reaction kinetics Specific oxidation Starch and polysaccharides Sugars |
| title | Specific modifications of galactomannans |
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