title: Commercial Origanum compactum Benth. and Cinnamomum zeylanicum Blume essential oils against natural mycoflora in Valencia rice.
abstract: Chemical composition of commercial Origanum compactum and Cinnamomum zeylanicum essential oils and the antifungal activity against pathogenic fungi isolated from Mediterranean rice grains have been investigated. Sixty-one compounds accounting for more than 99.5% of the total essential oil were identified by using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Carvacrol (43.26%), thymol (21.64%) and their biogenetic precursors p-cymene (13.95%) and γ-terpinene (11.28%) were the main compounds in oregano essential oil, while the phenylpropanoids, eugenol (62.75%), eugenol acetate (16.36%) and (E)-cinnamyl acetate (6.65%) were found in cinnamon essential oil. Both essential oils at 300 μg/mL showed antifungal activity against all tested strains. O. compactum essential oil showed the best antifungal activity towards Fusarium species and Bipolaris oryzae with a total inhibition of the mycelial growth. In inoculated rice grains at lower doses (100 and 200 μg/mL) significantly reduced the fungal infection, so O. compactum essential oil could be used as ecofriendly preservative for field and stored Valencia rice.
authors.affiliation: a Departamento de Ecosistemas Agroforestales , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain.
authors.forename: M Pilar
authors.initials: MP
authors.lastname: Santamarina
authors.affiliation: a Departamento de Ecosistemas Agroforestales , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain.
authors.forename: Josefa
authors.initials: J
authors.lastname: Roselló
authors.affiliation: a Departamento de Ecosistemas Agroforestales , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain.
authors.forename: Francisca
authors.initials: F
authors.lastname: Sempere
authors.affiliation: a Departamento de Ecosistemas Agroforestales , Universitat Politècnica de València , Camino de Vera s/n, 46022 Valencia , Spain.
authors.forename: Silvia
authors.initials: S
authors.lastname: Giménez
authors.affiliation: b Departament de Farmacologia, Facultat de Farmàcia , Universitat de València , Vicent Andrés Estellés s/n, 46100 Burjasot , Valencia , Spain.
authors.forename: M Amparo
authors.initials: MA
authors.lastname: Blázquez
mesh_terms: D000528:Alternaria / Q000187:drug effects; D000935:Antifungal Agents / Q000737:chemistry* / Q000302:isolation & purification; D001203:Ascomycota / Q000187:drug effects; D002934:Cinnamates; D002935:Cinnamomum zeylanicum / Q000737:chemistry*; D000081005:Cyclohexane Monoterpenes; D000081007:Cymenes; D005054:Eugenol; D005670:Fusarium / Q000187:drug effects; D008401:Gas Chromatography-Mass Spectrometry; D008826:Microbial Sensitivity Tests; D039821:Monoterpenes; D009822:Oils, Volatile / Q000737:chemistry*; D031341:Origanum / Q000737:chemistry*; D012275:Oryza / Q000382:microbiology*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D000935:Antifungal Agents; D002934:Cinnamates; D000081005:Cyclohexane Monoterpenes; D000081007:Cymenes; D039821:Monoterpenes; D009822:Oils, Volatile; D010938:Plant Oils; C007210:4-cymene; D005054:Eugenol; C018669:gamma-terpinene; C526329:cinnamyl acetate
keywords: Cinnamomum zeylanicum; GC–MS analysis; Origanum compactum; antifungal activity; essential oils