Evaluación in vitro de la actividad fungistática del aceite esencial de mandarina sobre el crecimiento de Penicillium sp.

Abstract

The fungi Penicillium digitatum and P. italicum represent the main global economic loss to the citrus industry during postharvest stage. Nowadays, the use of fungicides is increasingly restricted due to their carcinogenic, teratogenic, high residuality, long degradation period, environmental contamination, increased pathogen resistance, among others. Natural antimicrobial compounds could be a safe and viable option to minimize disease losses facing the industry. In this study, we evaluated in vitro the activity of tymol, carvacrol and commercial mandarin oil (Italian Mandarin) at concentrations of 40 and 50 ppm using the agar diffusion method and microbiological testing. All the essential oils evaluated for both fungi, showed an inhibition rate between 50% and 100%, and the effect was higher at doses of 50 ppm. This effect was followed by inhibition of sporulation and germination. Carvacrol showed the higher antifungal activity for both fungi studied. P. digitatum showed a greater sensitivity to the effect of the essential oils evaluated compared to P. italicum. Commercial mandarin essential oil can be an alternative to the control of postharvest diseases caused by Penicillium sp. in plant products.

Effectiveness of Cymbopogon citratus Oil Encapsulated in Chitosan on Colletotrichum gloeosporioides Isolated from Capsicum annuum

“…An adjustment was made to the methodology of the “agar diffusion assay” described by Velásquez [ 43 ]. Petri dishes were used with five chitosan capsules without EO content.…”

Antifungal Activity of Rue Essential Oil and Commercial Chitosan on Native Corn Foliar Diseases

“…As well as the combined application of chitosan and cinnamon essential oil, the preparations were also effective against fungi isolated from avocado (Colletotrichum acutatum and C. gloeosporioides) because its mycelial growth was totally reduced [25]. On the other hand, the essential oil of mandarin inhibited the growth of Penicillium digitatum in vitro, which causes green mold on citrus fruits in postharvest [26]. Other essential oils extracted from Amazonian plants (Ocotea quixos and Piper adencum) inhibited the growth of Aspergillus oryzae, Cladosporium cladosporioides, Fusarium solani, Rhizopus stolonifer, Moniliophthora roreri, and Phytophthora sp.…”

Plan estratégico y prospectivo del sector de frutas frescas en el Valle del Cauca 2033

“…(Martínez-Girón et al, 2017) Obtención de la harina de residuos de chontaduro para convertirse en una alternativa que sustituya a la harina de trigo Evaluación in vitro de la actividad fungistática del aceite esencial de mandarina sobre el crecimiento de Penicillium sp. (Velásquez et al, 2015) El aceite de mandarina y sus componentes (timol y carvacrol) como alternativa antifúngica Deshidratación de mora (rubus glaucus) por convección forzada para producción de aromáticas. (Márquez, 2004) Desarrollo de partícula y trozos y pulpa deshidratados para preparación de bebidas aromáticas Caracterización fisicoquímica de diferentes variedades de aguacate, Persea americana Mill.…”