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https://hdl.handle.net/20.500.14279/9290
Title: | Edible coating composed of chitosan and Salvia fruticosa Mill. extract for the control of grey mould of table grapes |
Authors: | Kanetis, Loukas Exarchou, Vassiliki Charalambous, Zinovia Goulas, Vlasios |
Major Field of Science: | Agricultural Sciences |
Field Category: | Agricultural Biotechnology |
Keywords: | Botrytis cinerea;Salvia fruticosa;Chitosan;Edible coating;Postharvest;Table grapes |
Issue Date: | 30-Jan-2017 |
Source: | Journal of the Science of Food and Agriculture, 2017, vol. 97, no. 2, pp. 452-460 |
Volume: | 97 |
Issue: | 2 |
Start page: | 452 |
End page: | 460 |
Journal: | Journal of the Science of Food and Agriculture |
Abstract: | BACKGROUND:Consumer concerns regarding high-quality produce, free of pesticide residues, direct research towards disease management strategies that minimise or even exclude the use of synthetic chemistries in crop production. The efficacy of a chitosan-based edible coating combined with the acetonic extract of Salvia fruticosa Mill. (ASF) was assessed against the grey mould of table grapes. RESULTS: HPLC-SPE-NMR and q-NMR analyses defined major constituents of ASF to be the flavonoids hispidulin, salvigenin and cirsimaritin and the diterpenes carnosic acid, carnosol and the 12-methoxycarnosic acid. The extract was found to be efficacious in reducing spore germination and mycelial growth of Botrytis cinerea in vitro at 10 and 25 °C. However, the combination of the ASF with chitosan 1% (w/v; CHIT) significantly improved fungal inhibition. Similarly, in fruit inoculation trials at 10 °C, the efficacy of the combined application of the ASF at 500 mg L−1 with CHIT against grey mould was statistically equal to the synthetic fungicide thiabendazole, ranging from 98.4% to 92.7% at 12 and 21 days post-inoculation, respectively. Furthermore, chitosan coating alone and in combination with ASF decreased the rate of fruit weight loss during cold storage, while preserved soluble solids content and titratable acidity. Chitosan-based coatings did not affect quality attributes and the bioactive compounds in table grapes. CONCLUSION: The combined application of the ASF in the form of an edible coating with chitosan could effectively control B. cinerea without deteriorating quality and physico-chemical properties of grapes. © 2016 Society of Chemical Industry. |
URI: | https://hdl.handle.net/20.500.14279/9290 |
ISSN: | 10970010 |
DOI: | 10.1002/jsfa.7745 |
Rights: | © Society of Chemical Industry |
Type: | Article |
Affiliation : | Cyprus University of Technology University of Antwerp |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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