Multivariate analysis of superficial scald susceptibility on Granny Smith apples dipped with different postharvest treatments.
Multivariate methods were used to present the results of different postharvest treatments applied to control superficial scald disorder in Granny Smith apples. In a two-season study, the treatments applied by dips were diphenylamine (DPA), Semperfresh (a sucrose ester coating) formulated alone or with either ascorbyl palmitate or n-propyl gallate, and CaCl(2). DPA correlated negatively with scald, whereas the rest of the treatments showed no clear relationship with the disorder. By means of partial least squares, the incidence of superficial scald after cold storage was shown to correlate with quality parameters (firmness and acidity), measured at the end of storage. In contrast, ethylene production did not appear as a relevant factor in the incidence of scald.
Soria
Y
Y
Postharvest Department, CeRTA, UdL-IRTA, and Chemistry Department, University of Lleida, Avenida Alcalde Rovira Roure 177, 25198 Lleida, Spain. soria@hbj.udl.es
Recasens
I
I
Gatius
F
F
Puy
J
J
D003080:Cold Temperature; D004159:Diphenylamine; D005519:Food Preservation / Q000379:methods; D005520:Food Preservatives; D006801:Humans; D015999:Multivariate Analysis; D019685:Rosales; D012621:Seasons
D005520:Food Preservatives; D004159:Diphenylamine