American Potato Journal

, Volume 17, Issue 12, pp 328–330 | Cite as

The Non-Volatile Acids of The Potato

  • A. L. Curl
  • E. K. Nelson


The non-volatile acids of the juice of the potato tuber,Solatium tuberosum, L. (var. Green Mountain), were investigated. The ester distillation method revealed the presence of the citric andl-malic acids in the ratio of nearly 20:1 together with a small amount of isocitric acid. By the Arbenz method, 0.02 per cent of oxalic acid was shown to be present.


Starch Oxalic Acid Potato Tuber Malic Acid Hydrazide 
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Literature Cited

  1. 1.
    Wehmer, C. 1931. “Die Pflanzenstoffe,” Second Edition, Vol. II, Gustav Fischer, Jena. p. 1095.Google Scholar
  2. 2.
    Tibbies, W. 1912. Foods: their origin, composition and manufacture. Bailliere, Tindall and Cox, London. p. 496.Google Scholar
  3. 3.
    Guthrie, J. D. 1936. Isolation of citric acid from potato tubers. Contrib. Boyce Thompson Inst. 8:295–296.Google Scholar
  4. 4.
    Ingold, C. T. 1930. Hydrogen-ion phenomena in plants. IV. Buffer of potato (tuber and leaf). V. The buffer systems of plant juices. VI. Apparatus for measuring the effect of carbon dioxide on the reaction of plant sap. Protoplasma 9:441–446.CrossRefGoogle Scholar
  5. 5.
    Arbenz, E. 1917. The quantitative determination of oxalic acid in foods and condiments. Mitt. Lebensm. Hyg. 8:98.Google Scholar
  6. 6.
    Franzen, H. and Heiwert, F. 1922. The chemical constituents of green plants. XX. The acids of the cherry (Prunus avium). Z. Physiol. Chem. 122:46–85.Google Scholar
  7. 7.
    Nelson, E. K. 1924. Non-volatile acids of the peach. J. Am. Chem. Soc. 46: 2337.CrossRefGoogle Scholar
  8. 8.
    Nelson, E. K. 1925. Non-volatile acids of the blackberry. J. Am. Chem. Soc. 47:568–572CrossRefGoogle Scholar
  9. 9.
    Arbenz, loc. cit.Google Scholar

Copyright information

© Springer 1940

Authors and Affiliations

  • A. L. Curl
    • 1
  • E. K. Nelson
    • 1
  1. 1.Bureau of Agricultural Chemistry and EngineeringU. S. Department of AgricultureWashington, D. C.

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