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Biomedical subjects

J F Ryley

Publications and source records attributed to J F Ryley.

51 records · Page 3Linked to original sources
PubMed1966

Studies on the metabolism of the protozoa. The molecular structure of the reserve polysaccharide from Astasia ocellata.

1. The flagellate Astasia ocellata synthesizes as reserve carbohydrate a water-insoluble polysaccharide (paramylon) containing chains of beta-(1-->3)-linked d-glucose residues. 2. The average chain length, determined by methylation analysis, is about 43, and the minimum degree of polymerization from periodate oxidation data is 50-55. Most of the molecules are therefore essentially linear.

Alkylation↗
PubMed1965

Studies on the metabolism of the protozoa. The molecular structure of a starch-type polysaccharide from Polytoma uvella.

1. Polytoma uvella, when grown in an acetate-containing medium, synthesizes a starch-type polysaccharide. 2. The starch differs from normal plant starches in having a lower iodine affinity, and in being relatively insoluble; this latter property makes fractionation difficult. 3. The starch contains about 16% of amylose, and on fractionation yields a branched amylopectin component that is similar in structure to a typical plant starch amylopectin.

Acetates↗