Control of postharvest grey mould (Botrytis cinerea Per.: Fr.) on strawberries by glucosinolate-derived allyl-isothiocyanate treatments |
| |
| Institution: | 1. Consiglio per la Ricerca e la Sperimentazione in Agricoltura, Centro di Ricerca per le Colture Industriali (CRA-CIN), Via di Corticella 133, 40128 Bologna, Italy;2. Criof, University of Bologna, Via Gandolfi 19, 40057 Cadriano Bologna, Italy;1. Centro de Investigación para los Recursos Naturales, Antigua Escuela Normal Rural de Salaices, López, Chihuahua, Mexico;2. Instituto Tecnológico de Parral, Parral, Chihuahua, Mexico;3. Universidad Tecnológica de Camargo, Jiménez, Chihuahua, Mexico;4. Universidad Tecnológica de la Tarahumara, Guachochi, Chihuahua, Mexico;5. Universidad Autónoma de Chihuahua, Facultad de Ciencias Agrotecnológicas, Chihuahua, Mexico;1. Laboratory of Food Chemistry and Toxicology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Spain;2. School of Agricultural Sciences and Veterinary Medicine, Pontifícia Universidade Católica do Paraná, BR 376 Km 14, 83010-500, São José dos Pinhais, Brazil;1. Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China;2. Food Science Institute, Zhejiang Academy of Agricultural Sciences, China National Light Industry, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture and Rural Affairs, Hangzhou 310021, China;3. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;4. College of Food and Pharmaceutical Sciences, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo 315800, China;1. Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang Key Laboratory for Agri-Food Processing, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Hangzhou 310058, China;2. Key Laboratory of Genetics and Fruit Development, Horticultural College, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China;3. Zhejiang University, Ningbo Research Institute, Ningbo 315100, China;4. Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;5. School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China |
| |
| Abstract: | The vapours of allyl-isothiocyanate (AITC) were evaluated in in vitro and in vivo trials against Botrytis cinerea, a severe pathogen of strawberries. In in vitro trials AITC activity was assayed on conidial germination and mycelial growth of the fungus. The mycelium appeared less sensitive to AITC than conidia (EC50 values of 1.35 mg L?1 and 0.62 mg L?1, respectively). In addition, AITC had a fungistatic effect against the pathogen, since the values of EC50, for both parameters, increased by around 30% after AITC removal. In in vivo trials, ‘Tecla’ and ‘Monterey’ strawberries (spring-bearing and day-neutral cultivars, respectively) obtained from organic production and naturally infected by B. Cinerea, were exposed for 4 h in an atmosphere enriched by pure AITC or derived from defatted seed meals of Brassica carinata (0.1 mg L?1, in a 0.1 m3 treatment cabinet). After 2 days at 0 °C and another 3–4 days at 20 °C, the fruit were evaluated for grey mould infections. The AITC treatment reduced the decay caused by the pathogen by over 47.4% up to 91.5%, significantly different from the untreated fruit. No significant differences were found between synthetic and glucosinolate-derived AITC. Residue analysis performed on fruit at the end of storage (7 d after treatment) showed values lower than 1 mg kg?1. Total phenolic content and antioxidant capacity estimated in treated and untreated strawberries showed no significant difference between control and AITC treated fruit. Our results show it is possible to reduce the incidence of postharvest grey mould on strawberries with a treatment of AITC (0.1 mg L?1) for 4 h, opening a potential application of biofumigation in the postharvest control of B. cinerea in strawberry. |
| |
| Keywords: | Postharvest Strawberry Biofumigation Brassica meal Allyl isothiocyanate |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
