[en] The use of wax coatings enriched with antifungals has significantly contributed to quality maintaining of harvested citrus fruit. On the other hand, interest in essential oils (EOs) as an alternative to synthetic fungicides has recently gained momentum. In this study, Cinnamomum zeylanicum EO was incorporated into a variety of commercial citrus waxes (shellac, carnauba, paraffin and polyethylene). The biological activity of these formulations against green and blue rots as well as their viscosity and adherence to the orange fruit surface were evaluated. Excellent disease control was achieved with C. zeylanicum EO incorporated in shellac and/or carnauba wax compared to other EO–wax formulations. Disease control by EO–waxes seems to depend not only on the volume that remains on the fruit skin, but also, probably on the retention of EO components on the fruit. Other factors such as formulation solubility, permeability to gases, and compatibility between EO compounds and those of waxes may also be involved in the improvement of EO efficacy. The present study may therefore allow a careful selection of ppropriate waxes for the elaboration of effective EO–wax formulations.
Alleyne V., Hagenmaier R.D. Candelilla-shellac-an alternative formulation for coating apples (Malus domestica Borkh.). Hortscience 2000, 35:691-693.
Amiri A., Dugas R., Pichot A.L., Bompeix G. In vitro and in vivo activity of eugenol oil (Eugenia caryophyllata) against four important postharvest apple pathogens. International Journal of Food Microbiology 2008, 126:13-19.
Bai J., Hagenmaier R.D., Baldwin E.A. Coating selection for 'Delicious' and other apples. Postharvest Biology and Technology 2003, 28:381-390.
Bakkali F., Averbeck S., Averbeck D., Idaomar M. Biological effects of essential oils. Food and Chemical Toxicology 2008, 46:446-475.
Baldwin E.A. Edible coatings for fresh fruits and vegetables: past, present, and future. Edible Coatings and Films to Improve Food Quality 1994, 25-64. Technomic Publishing, Lancaster, PA. J.M. Krochta, E.A. Baldwin, M.O. Nisperos-Carriedo (Eds.).
Baldwin E.A., Nisperoscarriedo M., Shaw P.E., Burns J.K. Effect of coatings and prolonged storage conditions on fresh orange flavor volatiles, degrees brix, and ascorbic acid levels. Journal of Agricultural and Food Chemistry 1995, 43:1321-1331.
Bonilla J., Atarés L., Vargas M., Chiralt A. Edible films and coatings to prevent the detrimental effect of oxygen on food quality: possibilities and limitations. Journal of Food Engineering 2012, 110:208-213.
Bosquez-Molina E., Guerrero-Legarreta I., Vernon-Carter E.J. Moisture barrier properties and morphology of mesquite gum-candelilla wax based edible emulsion coatings. Food Research International 2003, 36:885-893.
Bourtoom T. Edible films and coatings: characteristics and properties. International Food Research Journal 2008, 15:237-248.
Campaniello D., Corbo M.R., Sinigaglia M. Antifungal activity of eugenol against Penicillium, Aspergillus, and Fusarium species. Journal of Food Protection 2010, 73:1124-1128.
Combrinck S., Regnier T., Kamatou G.P.P. In vitro activity of eighteen essential oils and some major components against common postharvest fungal pathogens of fruit. Industrial Crops and Products 2011, 33:344-349.
Daferera D.J., Basil N., Ziogas N., Polissiou M.G. The effectiveness of plant essential oils on Botrytis cinerea, Fusarium sp and Clavibacter michiganensis subsp. Michiganensis. Crop Protection 2003, 22:39-44.
De Sousa P.P.R., de Oliveira Pereira F., de Sousa Lima R., de Oliveira Lima E. Antifungal action of Cinnamomum zeylanicum Blume essential oil against Penicillium spp from environment air of a dry food industry. International Research Journal of Microbiology 2011, 2:173-178.
Du Plooy W., Regnier T., Combrinck S. Essential oil amended coatings as alternatives to synthetic fungicides in citrus postharvest management. Postharvest Biology and Technology 2009, 53:117-122.
Farag, Y., 2010. Characterization of different shellac types and development of shellac-coated dosage forms. Ph.D. dissertation. Hamburg University. http://www.chemie.uni-hamburg.de/bibliothek/2010/DissertationFarag.pdf.
Hagenmaier R.D. The flavor of mandarin hybrids with different coatings. Postharvest Biology and Technology 2002, 24:79-87.
Hummelbrunner L.A., Isman M.B. Acute, sublethal, antifeedant, and a synergistic effect of monoterpenoid essential oil compounds on the tobacco cutworm, Spodoptera litura (Lep., Noctuidae). Journal of Agricultural and Food Chemistry 2001, 49:715-720.
Kouassi, K.H.S., Bajji, M., Brostaux, Y., Zhiri, A., Samb, A., Lepoivre, P., Jijakli, M.H. Development and application of a microplate method to evaluate the efficacy of 30 essential oils against Penicillium italicum, P. digitatum and Colletotrichum musea, three postharvest fungal pathogens on fruit. Biotechnology, Agronomy, Society and Environment, in press.
Kouassi K.H.S., Bajji M., Zhiri A., Lepoivre P., Jijakli M.H. Evaluation of three essential oils as potential sources of botanical fungicides. Communications in Agricultural and Applied Biological Science 2010, 75:525-529.
Linde J.H., Combrinck S., Regnier T.J.C., Virijevic S. Chemical composition and antifungal activity of the essential oils of Lippia rehmannii from South Africa. South African Journal of Botany 2010, 76:37-42.
Mannheim C.H., Soffer T. Permeability of different wax coatings and their effect on citrus fruit quality. Journal of Agricultural and Food Chemistry 1996, 44:919-923.
Marei G.I.Kh., Abdel Rasoul M.A., Abdelgaleil S.A.M. Comparative antifungal activities and biochemical effects of monoterpenes on plant pathogenic fungi. Pesticide Biochemistry and Physiology 2012, 103:56-61.
Matan N., Saengkrajang W., Matan N. Antifungal activities of essential oils applied by dip-treatment on areca palm (Areca catechu) leaf sheath and persistence of their potency upon storage. International Biodeterioration and Biodegradation 2011, 65:212-216.
Moon S.-E., Kim H.-Y., Cha J.-D. Synergistic effect between clove oil and its major compounds and antibiotics against oral bacteria. Archives of Oral Biology 2011, 56:907-916.
Plotto A., Roberts D.D., Roberts R.G. Evaluation of plant essential oils as natural postharvest disease control of tomato (Lycopersicon esculentum). Acta Horticulturae 2003, 628:737-745.
Ranasinghe L., Jayawardena B., Abeywickrama K. Fungicidal activity of essential oils of Cinnamomum zeylanicum (L.) and Syzygium aromaticum (L.) Merr et L.M. Perry against crown rot and anthracnose pathogens isolated from banana. Letters in Applied Microbiology 2002, 35:208-211.
Regnier T., Combrinck S., Du Plooy W., Botha B. Evaluation of Lippia scaberrima essential oil and some pure terpenoid constituents as postharvest mycobiocides for avocado fruit. Postharvest Biology and Technology 2010, 57:176-182.
Sanchez-Gonzalez L., Chafer M., Chiralt A., Gonzalez-Martinez C. Physical properties of chitosan films containing bergamot essential oil and their inhibitory action on Penicilium italicum. Carbohydrate Polymers 2010, 82:277-283.
Sanchez-Gonzalez L., Gonzalez-Martinez C., Chiralt A., Chafer M. Physical and antimicrobial properties of chitosan-tea tree essential oil composite films. Journal of Food Engineering 2010, 98:443-452.
Sanchez-Gonzalez L., Vargas M., Gonzalez-Martinez C., Chiralt A., Chafer M. Use of essential oils in bioactive edible coatings. Food Engineering Reviews 2011, 3:1-16.
Sen-Sung C., Ju-Yun L., Ed-Haun C., Shang-Tzen C. Antifungal activity of cinnamaldehyde and eugenol congeners against wood-rot fungi. Bioresource Technology 2008, 99:5145-5149.
Şerban E.S., Ionescu M., Maier D.M.C.S., Bojita M.T. Screening of the antibacterial and antifungal activity of eight volatile essential oils. Farmacia 2011, 59:440-446.
Sheng-Yang W., Pin-Fun C., Shang-Tzen C. Antifungal activities of essential oils and their constituents from indigenous cinnamon (Cinnamomum osmophloeum) leaves against wood decay fungi. Bioresource Technology 2005, 96:813-818.
Soylu E.M., Kurt ş., Soylu S. In vitro and in vivo antifungal activities of the essential oils of various plants against tomato grey mould disease agent Botrytis cinerea. International Journal of Food Microbiology 2010, 143:183-189.
Srinivasa P.C., Susheelamma N.S., Ravi R., Tharanathan N.R. Quality of mango fruit during storage: effect of synthetic and ecofriendly films. Journal of the Science of Food and Agriculture 2004, 84:818-824.
Teuscher E., Anton R., Lobstein A. Plantes aromatiques: Epices, aromates, condiments et huiles essentielles 2005, Editions Tec & Doc, Paris, France.
Tsair-Bor Y., Shang-Tzen C. Synergistic effects of cinnamaldehyde in combination with eugenol against wood decay fungi. Bioresource Technology 2008, 99:232-236.
Zhou R., Mo Y., Li Y.F., Zhao Y.Y., Zhang G.X., Hu Y.S. Quality and internal characteristics of huanghua pears (Pyrus pyrifolia Nakai, cv. Huanghua) treated with different kinds of coatings during storage. Postharvest Biology and Technology 2008, 49:171-179.
