Using electrolyzed oxidizing water combined with an ultrasonic wave on the postharvest diseases control of pineapple fruit cv. ‘Phu Lae’ |
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| Institution: | 1. Postharvest Technology Research Institute, Postharvest Technology Innovation Center, Chiang Mai University, Chiang Mai 50200, Thailand;2. Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;3. School of Agro Industry, Mae Fah Luang University, Chiang Rai 57100, Thailand;1. College of Food Science, Southwest University, Chongqing 400715, PR China;2. Food Storage and Logistics Research Center, Southwest University, Chongqing 400715, PR China;1. DIPA, PROPAC, Facultad de Química, Universidad Autónoma de Querétaro. C.U., Cerro de las Campanas s/n Col., Las Campanas, 76010 Querétaro, Qro., Mexico;2. Centro de Investigación y Desarrollo en Electroquímica (CIDETEQ), Parque Tecnológico Querétaro, Sanfandila C.P., 76703 Pedro Escobedo, Querétaro, Mexico;1. Istituto di Biometeorologia del CNR, sede di Bologna, Via Gobetti 101, 4012, Bologna, Italy;2. Università degli Studi di Firenze, Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali (DAGRI) - Sez. Patologia vegetale ed Entomologia, Piazzale delle Cascine 28, 50144, Firenze, Italy;3. Università degli Studi di Teramo, Facoltà di BioScienze e Tecnologie Agro-Alimentari ed Ambientali, Via Renato Balzarini 1, 64100, Teramo, Italy;1. College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;2. Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA 30223, USA;3. Food Science Program, Division of Food System & Bioengineering, University of Missouri, Columbia, MO 65211-5160, USA;1. Department of Horticulture, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand;2. Department of Plant Sciences, Mail Stop 3, University of California, Davis CA 95616, USA |
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| Abstract: | The effects of ultrasound (US) and electrolyzed oxidizing (EO) water on postharvest decay of pineapple cv. Phu Lae were investigated using Fusarium sp. isolated from pineapple fruits. The effect of EO water and US irradiation on in vitro growth inhibition of Fusarium sp. was studied. Spore suspensions were treated EO water with free chlorine at 100, 200 and 300 ppm and different frequencies of 108, 400, 700 KHz and 1 MHz US irradiation for 0, 10, 30 and 60 min and incubated at 27 °C for 48 h The study showed that all treatments of EO water totally inhibited the spore germination of the fungus. Additionally, US irradiation of 1 MHz for 60 min was the most effective to suppress the spore germination when compared with the control. When the fruits inoculated with Fusarium sp. were washed in EO water at 100 ppm and US irradiation or combination of US and EO water significantly inhibited the decay incidence and prolonged the shelf life of the pineapple for 20 days. Treatments had no effect on fruit quality (weight loss percentage, total soluble solids, titratable acidity, pH, and ascorbic acid). The potential for EO water in combination with US in pineapple handling systems is high, due to marked synergistic effects against fungal decay of decrowned pineapple fruit during storage. |
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| Keywords: | Electrolyzed water Ultrasonic wave |
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