Influence of Low O2 and High Co2 Storage on Quality of Organically Grown Winter Melon and Control of Disorders of Organically Grown Apples by Ulo in Commercial Storage Rooms

Mencarelli, Fabio; Botondi, R.; Kelderer, Markus; Casera, Claudio

doi:10.17660/actahortic.2003.600.6

Cited by 2 publications

(1 citation statement)

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“…The current maximum residue level (MRL) of DPA on apples is 5 mg kg –1 ; however, the MRL will likely be lowered to 0.01 or 0.05 mg kg –1 . Efforts to substitute postharvest treatments with DPA have led to the development of new storage technologies, using different types of controlled atmosphere (CA) − such as dynamic controlled atmosphere (DCA), ultra low oxygen (ULO) with initial low oxygen stress (ILOS), or treatment of apples with 1-methylcyclopropene (1-MCP) − prior to storage.…”

Section: Introductionmentioning

confidence: 99%

Diphenylamine Residues in Apples Caused by Contamination in Fruit Storage Facilities

Robatscher

Eisenstecken

Sacco

et al. 2012

J. Agric. Food Chem.

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The potential of fruit storage facilities that are contaminated with the widely used chemical antioxidant diphenylamine to cross-contaminate untreated apples (Malus × domestica Borkh.) was studied. A new sample preparation method identified the storage room paint, contaminated from past treatments, as the major source of cross-contamination in the analyzed facilities. Diphenylamine amounts of up to 917 g were found in a single storage room and were shown to correlate with the extent of cross-contamination on stored apples. Our data support a diffusion-based mechanism where the wall paint releases the antioxidant to the storage room atmosphere even years after the last treatment. Given the extent of cross-contamination found in our model experiments and under commercial storage conditions, we deduce a significant risk of exceeding the potentially upcoming maximum residue level of 0.01 mg kg(-1) on stored fruit in contaminated rooms even years after the last diphenylamine treatment.

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