Essential oils and silver nanoparticles (SNP) as novel agents to extend vase-life of gerbera (Gerbera jamesonii cv. ‘Dune’) flowers |
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| Institution: | 1. College of Life Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, PR China;2. The University of Queensland, School of Agriculture and Food Sciences, Gatton, Qld. 4343, Australia;3. Department of Agriculture and Fisheries, GPO Box 267, Brisbane, Qld. 4001, Australia;1. Department of Agricultural, Forest and Food Sciences, University of Turin, Italy;2. Department of Agricultural Sciences, University of Naples, Italy;3. School of Biosciences, Cardiff University, UK;1. College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China;2. Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, 200240, China;3. School of Design, Shanghai Jiao Tong University, Shanghai, 200240, China;1. Agrotechnology and Food Sciences Group, Wageningen University and Research Centre, PO Box 17, 6700 AA Wageningen, The Netherlands;2. Department of Crop Science, University of Milan, Via Celoria 2, Milan, I-20133, Italy;3. Mann Laboratory, Department of Plant Sciences, University of California, Davis, CA 95616, USA |
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| Abstract: | The aim of this study was to evaluate the efficacy of silver nanoparticles (SNP) and essential oils as novel antimicrobial agents in extending the vase-life of gerbera (Gerbera jamesonii cv. ‘Dune’) flowers. The vase-life of flowers held in a solution containing 5 mg L−1 SNP plus 6% sucrose was found to be significantly higher than with 8-HQC (8-hydroxyquinoline citrate) or control treatments. However, the vase-life was not different to that of flowers held in similar concentrations of silver nitrate. All gerbera flowers held in SNP solutions showed significantly higher relative fresh weight than the control. Vase-life of gerbera flowers was extended by addition of either 50 or 100 mg L−1 carvacrol and either 1 or 2 mg L−1 SNP from 8.3 to 16 d. In addition, the relative fresh weight and solution uptake of gerbera flowers were increased by addition of 100 mg L−1 essential oils and 1 or 2 mg L−1 SNP as compared to that of control flowers. Our results suggest the potential application of essential oils or SNP as novel alternatives to common chemicals used in preservative solutions for gerbera flowers. |
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