Abstract
1. The constituents of the seeds of kidney beans containing glucosamine that could be released by acid hydrolysis (0.5 n-hydrochloric acid at 100 degrees ) were extracted into the phenol-rich phase on partitioning between phenol and water at 70 degrees . 2. These materials were also brought into solution on extracting the seeds with water (incomplete), or preferably with a slightly alkaline buffer in the absence of phenol. When these solutions were heated at 100 degrees or treated with trichloroacetic acid, all the materials containing acid labile glucosamine were carried down with the precipitate. Treatment with pepsin rendered the materials containing glucosamine soluble again. 3. All proteins in these extracts of kidney bean were found to be associated with various amounts of neutral and amino sugars by high-voltage electrophoresis and chromatography on Sephadex G-200 columns. 4. The isolation and crystallization of the main sugar components, d-glucosamine and d-mannose, are described and their significance in plant glycoproteins is discussed.
Keywords
BIOCHEMISTRY
CHROMATOGRAPHY
ELECTROPHORESIS
EXPERIMENTAL LAB STUDY
GLUCOSAMINE
GLYCOPROTEINS
PLANT PROTEINS
PLANTS
EDIBLE
SEEDS
MeSH Terms
Biochemical Phenomena
Biochemistry
Carbohydrates
Chromatography
Electrophoresis
Glucosamine
Glycoproteins
Mannose
Phaseolus
Plant Proteins
Plants
Plants, Edible
Research
Seeds
Chemicals
Carbohydrates
Glycoproteins
Plant Proteins
Glucosamine
Mannose
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
PUSZTAI A
References (25)
25 references, click to expand
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