Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664063
Title: Investigation of the seed mucilage from Plantago arenaria
Author: Wylam, Clare B.
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1952
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Abstract:
1, The mucilage was extracted from Plantago arenaria seeds and precipitated in acidified alcohol as the "free-acid" polysaccharide. 2, The mucilage had an equivalent weight ca. 2450, uronic anhydride 7,2%, anhydropentose 80%. Periodic acid oxidation indicated that some methyl pentose was present and formed part of a relatively stable nucleus. 3, Autohydrolysis of the mucilage yielded L-arabinose. 4, Hydrolysis with 3% oxalic acid gave an insoluble residue (2%), D-xyxose(62%), L-arabinose(17%) ,D-galactose (6%) and an aldobiuronic acid(l3%). 5, Drastic hydrolysis of the aldobiuronic acid yielded D-galacturonic acid and L-rhamnose and oxidation yielded mueie acid and L-rhamnonic acid. On methylation and hydrolysis, 2:3:4-trimethyl-D-galacturonic acid and 3:4-dimethyl-L-rhamnose were obtained. Thus the aldotiuronic acid was identified as 2-gamma-D- galacturonosido-L-rhamnose.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.664063  DOI: Not available
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