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HPLC analysis of freshly prepared extracts of yellow banana peels. Fractions with characteristic luminescence or absorbance are tentatively identified (and marked) as specific FCC or NCC fractions. Top: Chromatogram with detection of luminescence at 450 nm; black trace: extract of ethylene-ripened bananas; gray trace: extract of naturally ripened bananas. Bottom: Chromatogram with detection of the absorbance at 320 nm (see the Supporting Information for experimental details).
