Abstract
PREVIOUS communications from these laboratories1–4 have shown that associated with the remarkably high concentrations of true vitamin C in different tissues of the walnut (Juglans regia) and allied species are considerable amounts of non-specific dye reductants provisionally termed5 ‘apparent vitamin C'. The proportion of apparent vitamin C in the total dye reductants varies from less than 5 per cent in the endocarp to more than 90 per cent in resting buds and catkins. We have now obtained evidence that this so-called apparent vitamin C in walnuts is mainly, if not entirely, a derivative of hydrojuglone or 1 : 4 : 5 trihydroxynaphthalene :
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References
Melville, R., Wokes, F., and Organ, J. G., Nature, 152, 447 (1943).
Wokes, F., Organ, J. G., Duncan, J., and Jacoby, F. C., Biochem. J., 37, 695 (1943).
Wokes, F., Organ, J. G., James, E. M., and Melville, R., Nature, 154, 669 (1944).
Wokes, F., Melville, R., Organ, J. G., and James, E. M., Biochem. J., 39, xxv (1945).
Wokes, F., Organ, J. G., Duncan, J., and Jacoby, F. C., Nature, 152, 14 (1943).
Wokes, F., Nature, 158, 133 (1946).
Mylius, F., Ber., 18, 43, 2567 (1885).
Lugg, J. W. H., and Weller, R. A., Nature, 152, 448 (1943).
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DAGLISH, C., WOKES, F. Hydrojuglone and Apparent Vitamin C in Walnuts. Nature 162, 179–180 (1948). https://doi.org/10.1038/162179a0
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DOI: https://doi.org/10.1038/162179a0
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