The carbon-13 nuclear magnetic resonance spectra of five alditol-form oligosaccharides and a polysaccharide having the fundamental structural units of the Malvaceae plant mucilages were measured in aqueous solution and the signals were assigned.

13C NMR, structural unit, Malvaceae, plant mucilage, alditol-form oligosaccharide

• Compound ID: 24403
  

  b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ | | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rha-ol

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G26314VL, CCSD:15445, CBank-STR:17885
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119353 (all data & tools)
• Compound ID: 24404
  

  a-D-GalpA-(1-2)-L-Rha-ol

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G73304PU
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 219353 (all data & tools)
• Compound ID: 24405
  

  a-D-GalpA-(1-2)-L-Rhap

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  Structure type: oligomer
  Compound class: pectin
  Reference(s) to other database(s): GTC:G69122SJ, CCSD:4978, CBank-STR:1760
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 269353 (all data & tools)
• Compound ID: 24406
  

  b-D-GlcpA-(1-3)-+ | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rha-ol

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G65813CP, CCSD:15446, CBank-STR:13848
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119352 (all data & tools)
• Compound ID: 24407
  

  b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ | | | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rha-ol

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G54452PM, CCSD:15447, CBank-STR:19902
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119354 (all data & tools)
• Compound ID: 24408
  

  b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-L-Rha-ol

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G51718XB, CCSD:15448, CBank-STR:4915
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119351 (all data & tools)
• Compound ID: 24409
  

  b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-L-Rhap

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G28716NJ, CCSD:5001, CBank-STR:4916
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119347 (all data & tools)
• Compound ID: 24410
  

  b-D-GlcpA-(1-3)-+ | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rhap

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G12617AB, CCSD:5106, CBank-STR:13849
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119348 (all data & tools)
• Compound ID: 24411
  

  b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ | | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rhap

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G18335WT, CCSD:5177, CBank-STR:17886
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119349 (all data & tools)
• Compound ID: 24412
  

  b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ | | | b-D-GlcpA-(1-3)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-a-L-Rhap-(1-4)-a-D-GalpA-(1-2)-L-Rhap

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  Structure type: oligomer
  Reference(s) to other database(s): GTC:G38584GV, CCSD:5210, CBank-STR:19903
  
   
  
  Abelmoschus manihot, Althaea officinalis, Abelmoschus glutinotextilis, Althaea rosea, Abelmoschus esculentus
  CSDB ID 119350 (all data & tools)

Leaves and flowers of Malva sylvestris and Alcea rosea (Malvaceae) were compared by determination of the swelling index as well as the content and viscosity of their mucilages. The investigations showed mucilage from flowers of Alcea to be superior to mucilages from leaves or flowers from Malva. High molecular weight acidic polysaccharides (HMWAPs) were isolated from the mucilages of leaves and flowers of both species. The molecular weight of all HMWAPs was in a range of 1.3 to 1.6 x 106 D. HMWAP-content in mucilage from flowers of Alcea was highest compared to content in mucilages from leaves or flowers from Malva. HMWAPs were found to be composed mainly of glucuronic acid, galacturonic acid, rhamnose and galactose. Methylation analysis of the carboxyl-reduced and deuterium labeled sugar derivatives of HMWAPs from flowers of Malva sylvestris ssp. mouritiana and Alcea rosea enabled elucidation of the principal structural features of both polysaccharides.

viscosity, polysaccharide structure, acidic polysaccharides, Malvaceae, mucilage, Alcea rosea, Malva sylvestris

• Compound ID: 29731
  

  b-D-GalpA-(1-4)-b-D-Galp-(1-3)-+ | b-D-GalpA-(1-3)-+ | | | -4)-b-D-GalpA-(1-2)-a-L-Rhap-(1-4)-b-D-GalpA-(1-2)-a-L-Rhap-(1-

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  Structure type: structural motif or average structure ; 1600000
  Compound class: rhamnogalacturonan
  Reference(s) to other database(s): GTC:G88369BR
  
   
  
  Alcea rosea
  CSDB ID 63681 (all data & tools)
• Compound ID: 29730
  

  b-D-Galp-(1-4)-b-D-Galp-(1-4)-b-D-Galp-(1-4)-+ | b-D-GlcpA-(1-3)-+ b-D-GlcpA-(1-3)-+ | | | | -4)-b-D-GalpA-(1-4)-a-L-Rhap-(1-4)-b-D-GalpA-(1-2)-a-L-Rhap-(1-

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  Structure type: structural motif or average structure ; 1600000
  Compound class: rhamnogalacturonan
  Reference(s) to other database(s): GTC:G29119TS
  
   
  
  Malva sylvestris
  CSDB ID 63745 (all data & tools)