Chemistry and antimycotic potential of mentha based shellac coatings against penicillium digitatum of kinnow fruit

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dc.contributor.advisorTandon, Ritu
dc.contributor.authorHarpreet Kaur
dc.date.accessioned2018-12-02T03:57:26Z
dc.date.available2018-12-02T03:57:26Z
dc.date.issued2018
dc.description.abstractThe present study deals with chemistry and antimycotic potential of Mentha based shellac coatings against Penicillium digitatum of kinnow fruit. Essential oil (EO) of two species of Mentha viz. Mentha piperita and Mentha arvensis was extracted using Clevenger-type apparatus. Per cent yield of essential oil of M. arvensis (2.8%) was found higher than M. piperita (2.1%) Compositional analysis of M. piperita essential oil by GC-MS revealed presence of 51 compounds. M. piperita EO exhibited better antimycotic potential than M. arvensis EO against P. digitatum. Hence, Process of nanoemulsion (NE) development of M. piperita EO was optimized for parameters such as oil and surfactant ratio (v/v) with three sonication times (ST) with the help of probe ultrasonicator. Effect of surfactant concentration and sonication time on droplet diameter and electrical conductivity was studied. Nanoemulsion of 1:0.5 ratio of oil and surfactant with 20 min ST exhibited smallest droplet diameter as well as maximum stability at refrigerator temperature (4°C) than ambient temperature (25°C) over the storage period of 2 months. M. piperita based shellac nanoemulsions were prepared for the best.1:0.5 (v/v) oil and surfactant ratio. NE with 15 minute ST showed more effective inhibition (96.0%) against P. digitatum in comparison to other nanoemulsions as well as pure M. piperita EO (71.0%). Optical and SEM results showed morphological changes in treated fungus. Nanoshellac coating showed maximum inhibition at par with the standard Carbendazim.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810085021
dc.keywordsEssential oil, Mentha piperita, Nanoemulsion, Shellac, Antimycotic potential, Penicillium digitatum, Kinnowen_US
dc.language.isoenen_US
dc.pages66en_US
dc.publisherPunjab Agricultural University, Ludhianaen_US
dc.research.problemChemistry and antimycotic potential of mentha based shellac coatings against penicillium digitatum of kinnow fruiten_US
dc.subChemistryen_US
dc.subjectnullen_US
dc.themeChemistry and antimycotic potential of mentha based shellac coatings against penicillium digitatum of kinnow fruiten_US
dc.these.typeM.Scen_US
dc.titleChemistry and antimycotic potential of mentha based shellac coatings against penicillium digitatum of kinnow fruiten_US
dc.typeThesisen_US
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