Control of postharvest green mold of citrus fruit with yeasts,medicinal plants,and their combination |
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| Institution: | 1. Department of Graduate School, Tropical Agriculture, Kasetsart University, Bangkhen, Bangkok 10900, Thailand;2. Department of Agrotechnology, Faculty of Agriculture, University of Muhammadiyah Malang, 65141, Indonesia;3. Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkhen, Bangkok 10900, Thailand;1. Postharvest & Food Biochemistry Laboratory, Department of Food Science & Technology, University of Karachi, Karachi 75270, Pakistan;2. Agricultural Biotechnology & Phytopathology Laboratory, Department of Botany, University of Karachi, Karachi 75270, Pakistan;3. H.E.J. Research Institute of Chemistry, (ICCBS), University of Karachi, Karachi 75270, Pakistan;4. Biotechnology & Drug Development Laboratory, Department of Biochemistry, University of Karachi, Karachi 75270, Pakistan;1. Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi Aldo Moro, Via Amendola 165/A, 70126 Bari, Italy;2. Aqanat Limited, Clarence House, Thirsk Bank, Coxwold, York, UK;1. Planta Piloto de Procesos Industriales Microbiológicos—Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Belgrano y Pje. Caseros, 4000, Tucumán, Argentina;2. Laboratorio de Desarrollo e Investigación, SA San Miguel, Lavalle 4001, 4000, Tucumán, Argentina;3. Instituto de Microbiología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, 4000, Tucumán, Argentina |
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| Abstract: | The use of bio-fungicides and a plant extracts to control postharvest disease was investigated as an alternative to chemical control. The combination of a promising plant extract and yeast were selected through in vitro and in vivo techniques. A combination of Candida utilis TISTR 5001 and Eugenia caryophyllata crude extract was the best combination to attain a reduction in disease incidence and disease severity of Penicillium digitatum on citrus fruit. Colonization was the lowest on fruit treated with the combination of E. caryophylata crude extract and C. utilis TISTR 5001, and survival of C. utilis TISTR 5001 was the highest. The combination of E. caryophylata crude extract and C. utilis TISTR 5001 significantly reduced the natural development of green mold of citrus fruit, and had no effect to fruit quality. The active compound of E. caryophylata was found to be eugenol, based on HPLC and NMR (1H and 13C). Hence, the results indicate that a combination of plant extracts and yeasts posses antifungal activity that can be exploited as an ideal treatment for future plant disease management. |
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