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Abstract
ABSTRACTPigments were monitored in parsley leaves stored in air, air + 10 ppm C2H4, or 10% O2+ 10% CO2 controlled atmosphere (CA). Chlorophylls a and b, as determined with HPLC, decreased sharply in leaves held in air or air + 10 ppm C2H4. The decrease was less in leaves held in 10% O2 and 10% CO2 CA. The oxidized product of chlorophyll a, 10‐hydroxychlorophyll a, did not accumulate and chlo‐rophyllide accumulated minimally. Xanthophylls decreased but new pigments, suspected to be esterified xanthophylls, formed with yellowing of leaves. Neither the pathway of Chl degradation or xantho‐phyll products were altered by C2H4 or CA.
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