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Combined effects of potassium sorbate, hot water and thiabendazole against green mould of citrus fruit and residue levels

D'Aquino, Salvatore and Fadda, Angela and Barberis, Antonio and Palma, Amedeo and Angioni, Alberto and Schirra, Mario (2013) Combined effects of potassium sorbate, hot water and thiabendazole against green mould of citrus fruit and residue levels. Food Chemistry, Vol. 141 (2), p. 858-864. ISSN 0308-8146. Article.

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DOI: 10.1016/j.foodchem.2013.03.083

Abstract

Postharvest treatments of potassium sorbate only controlled recently established infections of Penicillium digitatum on Femminello siracusano lemons but did not confer any persistent protection. The loss of efficacy of potassium sorbate to control green mould decay was related to its irregular deposition on the fruit surface, as revealed by environmental scanning electron microscopy of oranges, and to the brief persistence of potassium sorbate residues. When treatment was done at 53 °C, the co-application of potassium sorbate with thiabendazole reduced thiabendazole residues in Moro and Sanguinello oranges, compared to thiabendazole treatment alone. However, treatment efficacy against two isolates of P. digitatum (thiabendazole-sensitive and thiabendazole-resistant) notably improved, indicating that potassium sorbate and hot water potentiated thiabendazole activity. Potassium sorbate residues remarkably decreased during fruit storage and were not affected by the co-application of thiabendazole.

Item Type:Article
ID Code:9222
Status:Published
Refereed:Yes
Uncontrolled Keywords:Environmental scanning electron microscopy, citrus, storage, heat treatment, Penicillium digitatum
Subjects:Area 03 - Scienze chimiche > CHIM/10 Chimica degli alimenti
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > CNR-Consiglio Nazionale delle Ricerche > Istituto di scienze delle produzioni alimentari, Sassari
Publisher:Elsevier
ISSN:0308-8146
Deposited On:01 Oct 2013 09:56

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