Affiliation:
1. Department of Agricultural, Forestry and Food Sciences (DISAFA), University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
2. Centre of Competence for the Innovation in the Agro-Environmental Sector—AGROINNOVA, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Italy
Abstract
Biofumigation with slow-release diffusers of essential oils (EOs) of basil, oregano, savoury, thyme, lemon, and fennel was assessed for the control of blue mould of apples, caused by Penicillium expansum. In vitro, the ability of the six EOs to inhibit the mycelial growth was evaluated at concentrations of 1.0, 0.5, and 0.1%. EOs of thyme, savoury, and oregano, at all three concentrations, and basil, at 1.0 and 0.5%, were effective in inhibiting the mycelial growth of P. expansum. In vivo, disease incidence and severity were evaluated on ‘Opal’ apples artificially inoculated with the pathogen and treated at concentrations of 1.0% and 0.5% of EOs. The highest efficacy in reducing blue mould was observed with EOs of lemon and oregano at 1.0% after 60 days of storage at 1 ± 1 °C (incidence of rot, 3 and 1%, respectively) and after a further 14 days of shelf-life at 15 ± 1 °C (15 and 17%). Firmness, titratable acidity, and total soluble solids were evaluated at harvest, after cold storage, and after shelf-life. Throughout the storage period, no evident phytotoxic effects were observed. The EOs used were characterised through GC-MS to analyse their compositions. Moreover, the volatile organic compounds (VOCs) present in the cabinets were characterised during storage using the SPME-GC-MS technique. The antifungal effects of EOs were confirmed both in vitro and in vivo and the possible mechanisms of action were hypothesised. High concentrations of antimicrobial and antioxidant compounds in the EOs explain the efficacy of biofumigation in postharvest disease control. These findings provide new insights for the development of sustainable strategies for the management of postharvest diseases and the reduction of fruit losses during storage.
Funder
Fondazione Cassa di Risparmio di Cuneo
European Union
Euphresco
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Computer Science Applications,Spectroscopy,Molecular Biology,General Medicine,Catalysis
Reference69 articles.
1. Rossi, R., and European Parliamentary Research Service (2022, December 12). The EU Fruit and Vegetable Sector: Main Features, Challenges and Prospects. Available online: https://www.europarl.europa.eu/thinktank/mt/document/EPRS_BRI(2019)635563.
2. CBI Ministry of Foreign Affairs (2022, December 12). The European Market Potential for Apples. Available online: https://www.cbi.eu/market-information/fresh-fruit-vegetables/apples/market-potential.
3. Food and Agriculture Organization of the United Nations (2022, December 12). FAOSTAT Statistical Database. Available online: https://www.fao.org/faostat/en/.
4. Penicillium expansum: Biology, Omics, and Management Tools for a Global Postharvest Pathogen Causing Blue Mould of Pome Fruit;Keller;Mol. Plant Pathol.,2020
5. Biological Control Agents and Chemical Inducers of Resistance for Postharvest Control of Penicillium expansum Link. on Apple Fruit;Quaglia;Postharvest Biol. Technol.,2011
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