Development of dark skin discoloration on peach and nectarine fruit in response to exogenous contaminations

Dark skin discoloration development on peach and nectarine cultivars was investigated in response to exogenous pH and metallic ions. The influence of skin abrasion and washing in combination with exogenous contaminants was studied in a factorial design experiment by using skin discs. Only abraded sk...

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Bibliographic Details
Published inJournal of the American Society for Horticultural Science Vol. 119; no. 3; pp. 529 - 533
Main Authors Cheng, G.W, Crisosto, C.H
Format Journal Article
LanguageEnglish
Published 01.05.1994
Subjects
CALIFORNIA
CALIFORNIE
COMPOSE PHENOLIQUE
COMPOSICION APROXIMADA
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
COMPOSITION GLOBALE
COMPUESTOS FENOLICOS
CONTAMINANTES
DECOLORACION
DECOLORATION
DURAZNO
ELEMENT METALLIQUE
ELEMENTOS METALICOS
FISIOLOGIA POSTCOSECHA
FRUITS
FRUTAS
GENETICA
GENETIQUE
NECTARINA
NECTARINE
PECHE (FRUIT)
PHYSIOLOGIE APRES RECOLTE
POLLUANT
PRUNUS PERSICA
RESISTANCE AUX MALADIES
RESISTENCIA A LA ENFERMEDAD
TECHNOLOGIE ALIMENTAIRE
TECNOLOGIA DE LOS ALIMENTOS
VARIEDADES
VARIETE
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Summary:Dark skin discoloration development on peach and nectarine cultivars was investigated in response to exogenous pH and metallic ions. The influence of skin abrasion and washing in combination with exogenous contaminants was studied in a factorial design experiment by using skin discs. Only abraded skin discs with and without washing developed discoloration after being exposed to high pH and different metallic ion concentrations. Among the metallic ion contaminants studied (Fe, Al, Cu, Sn, Zn, and Na), iron was the most effective in causing dark skin discoloration at physiological pH (3.5). Iron concentrations 10 ppm induced dark discoloration on abraded fruit skin. Dark discoloration development produced by exposing the skin tissue to pH levels 6 was reversible, whereas the dark discoloration induced by iron and aluminum remained stable
Bibliography:F60
Q02
Q04
9517177
ISSN:0003-1062
2327-9788
DOI:10.21273/JASHS.119.3.529