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Biomedical subjects

R B Turner

Publications and source records attributed to R B Turner.

At least 73 records · Page 4Linked to original sources
PubMed1975

Isolation and identification of 5,7-dimethoxyisoflavone, an inhibitor of Aspergillus flavus from peanuts.

An inhibitor of Aspergillus flavus has been isolated form peanuts and identified as 5,7-dimethoxyisoflavone, Authentic 5,7-dimethoxyisoflavone, synthesized from benzyl-2-hydroxy-4,6 dimethoxyphenyl (3), and the isolated compound display identical ultraviolet spectra in methanol, in methanol+sodium methoxide, and in methanol+AlCl3; similar behavior in solvent extraction, column chromatography, TLC, and fungal inhibition.

Antifungal Agents↗
PubMed1975

Inhibition of growth of Aspergillus flavus and Trichoderma viride by peanut embryos.

Growth of Aspergillus flavus and Trichoderma viride on agar media was inhibited around embryos of green peanut seeds but not around embryos of cured seeds, intact peanut seeds, or testae. Both fungi were able to colonize intact seeds and testae. Substances inhibitory to A. flavus and T. viride were extracted with acetone from cotyledons of freshly harvested peanut seeds. Four compounds inhibitory to A. flavus were detected in crude acetone extracts. Three of the compounds demonstrated properties of phenolics. Results of this study suggest that inhibitory compounds in peanut cotyledons may play a role in protecting the peanut embryo from fungal infection.

Antifungal Agents↗
PubMed1968

L-Lactic acid: a mosquito attractant isolated from humans.

L-Lactic acid was the major component in material isolated from humans that was active as an attractant for female yellow fever mosquitoes, Aedes aegypti (L.). The L(+)-isomer was several times as attractive as the D-isomer. Good correlation was found between the attractiveness of an individual to mosquitoes and the quantity of lactic acid present in an acetone washing of his hand.

Acetone↗