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ARS Home » Research » Publications at this Location » Publication #58891
Title: GUM CONTENTS OF SEVERAL LESQUERELLA SPECIES

Author
item Abbott Dr, Thomas
item SLODKI, MOREY - RETIRED
item Nelsen, Terry
item Kleiman, Robert

Submitted to: Annual Lesquerella Field Day
Publication Type: Abstract Only
Publication Acceptance Date: 4/25/1995
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Seeds of several lesquerella and related species were tested for seed surface gum content. The test is based on the phenol- sulfuric acid method for analysis of carbohydrates, but values were corrected for sugars and oligosaccharides <10,000 molecular weight. Crude seed surface gums content ranged from 12 to 27% among the lesquerella species, but the corrected measure of polysaccharide gums ranged from 2.4 to 13.5%. The response of polysaccharides and gums of various structures to the phenol-sulfuric acid reagent indicates that the phenol-sulfuric acid method must be calibrated with a purified gum isolate for accurate gum content determinations.