Anthocyanin Pigments in the Skin of Lychee Fruit

Authors

  • H.S. LEE,

    1. Author Lee is with the Florida Department of Citrus, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850. Author Wicker's present address: The University of Georgia, Dept. of Food Science & Technology, Athens, GA 30602.
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  • L. WICKER

    1. Author Lee is with the Florida Department of Citrus, Citrus Research & Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850. Author Wicker's present address: The University of Georgia, Dept. of Food Science & Technology, Athens, GA 30602.
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  • The authors thank Mr. H. Shu, Univ. of Florida, for his help in preparation of lychee skin extracts.

  • Florida Agriculture Experiment Station Journal Series No. R-00616.

ABSTRACT

The anthocyanins in the skin of lychee fruit were isolated and purified by Sephadex G-25 and LH-20 gel column chromatography, and Sep-Pak C-18 cartridge. Further separation by HPLC on a C-18 column, on-line spectra by photodiode array detection, and acid and alkali hydrolyses were used for identification. Cyanidin-3-rutinoside was the major anthocyanin found. Cyanidin-3-gIucoside and malvidin-3-ace-tylglucoside were also identified. Polymerized anthocyanin pigment was also present, appearing to contribute to the brownish-red color.

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