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1. Variation du Taux d'Acide Chlorogenique dans les Bourgeons Vegetatifs du Poirier au Cours de la Dormance.

Author

Melin, C., Billot, J., Dupin, J. F., and Paulet, P.

Subjects
*POLYPHENOLS, *CHLOROGENIC acid, *ACIDS, *PLANT cells & tissues, *SPECTROPHOTOMETRY, *CHROMATOGRAPHIC analysis
Abstract

A spectrophotometric technique after paper chromatography was found adequate for quantitatively determining chlorogenic and caffeic acids in the vegetative apical buds of Pyrus communis L., variety ‘Passe‐Crassane’, de ľOrléanais. Using this method, significant changes in these polyphenols were shown to occur both in tissue concentration and total amount per bud, in samples collected during winter 1973–1974. A close relationship between chlorogenic acid concentration and state of dormancy of excised twigs was found. [ABSTRACT FROM AUTHOR]

Published
1974
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2. Structure primaire de la caséine β bovine.

Author

Dumas, Bruno, Brignon, Ghislaine, Grosclaude, Francoise, and Mercier, Jean-Claude

Subjects
*CARBOXYLIC acids, *ORGANIC acids, *PEPTIDES, *AMINO acid separation, *CHROMATOGRAPHIC analysis, *ANALYTICAL chemistry
Abstract

Presents an investigation of the sequencing of 65 amino acid residues at the carboxyl-terminus. Use of methods such as enzymic or chemical cleavages of the peptide chain; Fractionation of peptides by Sephadex or Dowex column chromatography, paper elctrophoresis or chromatography.

Published
1971
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