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Niacinogen-hydrolysing Enzyme in Extracts from Rice Seedlings

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Abstract

THE alkali-labile bound form of nicotinic acid (niacinogen) has been isolated as a coloured crystalline compound from different cereals1,2. It is composed of nicotinic acid, a chromophoric moiety or moieties and a peptide, the nicotinic acid being linked through an alkali-labile ester linkage. The occurrence of the niacinogen in cereals suggests a common biological role of this compound in cereal grains. It has been found that in cereals, niacinogen is synthesized in the ripening stage and there is an increase in the nicotinic acid and pyridine nucleotide contents along with a decrease in the niacinogen content during germination3.

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References

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Authors and Affiliations

  1. Department of Applied Chemistry, University of Calcutta, Calcutta, 9

    H. P. GHOSH, P. K. SARKAR & B. C. GUHA

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  1. H. P. GHOSH
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  2. P. K. SARKAR
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  3. B. C. GUHA
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GHOSH, H., SARKAR, P. & GUHA, B. Niacinogen-hydrolysing Enzyme in Extracts from Rice Seedlings. Nature 198, 484–485 (1963). https://doi.org/10.1038/198484a0

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