Abstract
IN a paper describing, inter alia, the isolation of quinic acid from grass1, it was suggested that one of the acids (termed ‘acid B’) present in the grass extracts might be shikimic acid or a closely allied acid. Acid B appeared to be identical with ‘acid G’ found by Davies and Hughes2 in grass and stated by them to be a monobasic acid of relatively high molecular weight. At the time, only a few milligrams of acid B was available in solution, and comparison by paper chromatography with authentic shikimic acid showed that the two acids had the same R F in butanol – formic acid – water, but in benzyl alcohol – tert-butanol – iso-propanol – formic acid – water and propanol – ammonia – water the mixed acids gave two spots of closely similar R F value.
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References
Hulme, A. C., and Richardson, A., J. Sci. Food and Agric., 5, 221 (1954).
Davies, C. W., and Hughes, R. B., J. Sci. Food and Agric., 5, 200 (1954).
Eijkman, J. F., Ber. dtsch. chem. Ges., 24, 1278 (1891).
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RICHARDSON, A., HULME, A. Shikimic Acid in Grass. Nature 175, 43–44 (1955). https://doi.org/10.1038/175043a0
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DOI: https://doi.org/10.1038/175043a0
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