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This article in CS

  1. Vol. 10 No. 5, p. 608-609
    Received: Nov 19, 1969

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Fluorometric Assay of Free And Bound, cis- and trans-σ-Hydroxycinnamic Acid in a Single Plant Extract1

  1. F. A. Haskins and
  2. H. J. Gorz2



Fluorescence is measured on unhydrolyzed and hydrolyzed plant extracts, with and without prior ultraviolet treatment. Readings permit direct determination of free σ-hydroxycinnamic acid (σ-HCA), free trans-σ-HCA, total σ-HCA, and total trans-σ-HCA. Levels of bound trans-σ-HCA and free and bound cis-σ-HCA are calculated by appropriate subtraction.

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