Effectiveness of essential oil extracted from pompia leaves against Penicillium digitatum

Abstract

BACKGROUND In recent years, interest in the use of natural compounds as possible substitutes for chemicals, to prevent microbial food spoilage has grown. The antimicrobial activity of the essential oils (EOs) is well known and nowadays there is renewed interest in their application as natural preservatives in postharvest management. The aims of this study were to characterize the EO extracted from pompia leaves and to evaluate its effectiveness for the control of the postharvest decay agent Penicillium digitatum, when applied as vapor contact in new airtight boxes, supplied with a heating system. RESULTS Fumigation was performed in vitro and on food using two concentrations of the EO, heated at controlled temperature. The headspace analysis revealed that the heating of the EO favored the evaporation of the volatile compounds, without altering their functionality. The treatments reduced the pathogen growth in vitro and rot on inoculated food by about 50%. CONCLUSION The chemical analysis of the vapor composition demonstrated that heating the oil did not alter the components and thus the antimicrobial effect of the oil. The treatment by vapor contact with the EO was effective in controlling the pathogen growth in vitro but, above all, it was successful in halving rot in vivo. Due to their bioactivity in the vapor phase, EOs could be delivered as fumigants during postharvest protection; however, the techniques commonly employed are not ideal for simulating real pre‐treatment conditions. The new device allows real large‐scale conditions to be reproduced. © 2020 Society of Chemical Industry

Preservation activity of Artemisia essential oils and a monomer in treating pepper bacterium and fungus diseases

“…A 6mm filter paper was placed in the center of each plate, and the same amount of essential oil and monomer was dripped on the filter paper. Fungi were fumigated using method by Danzi et al (2020). with a slight modification.…”

Release kinetics modeling and fungal control potential of encapsulated thyme (Thymus vulgaris) essential oil

“…Además, actúan como agentes antimicrobianos (Danzi et al, 2020) e insecticidas (Benelli & Pavela, 2018). Sobre esta base, los Eo se pueden aplicar en la conservación de alimentos (Fellenberg et al, 2020), en la medicina alternativa y en el área terapéutica (Rivera et al, 2015).…”

“…Also, they act as antimicrobial (Danzi et al, 2020), and insecticidal agents (Benelli & Pavela, 2018). On this basis, Eo can be applied in food preservation (Fellenberg et al, 2020), in alternative medicine, and in the therapeutic area (Rivera et al, 2015).…”

The Antifungal Activity of Loquat (Eriobotrya japonica Lindl.) Leaves Extract Against Penicillium digitatum

“…Fruit, and Sapindus saponaria L. fruit) has been reported to reduce postharvest fungal diseases in citrus fruits and other horticultural commodities ( 7 – 10 ). For instance, the essential oil extracted from pompia leaves effectively controlled the growth of P. digitatum ( 8 ). Moreover, the results showed that the activity of the ethanol extract of Sapindus saponaria L. fruit against Colletotrichum Musae was similar to that of thiabendazole at a 500-μg/ml concentration ( 10 ).…”

“…The application of several plant extracts (e.g., pomegranate peel, pompia leave, Ficus hirta Vahl. Fruit, and Sapindus saponaria L. fruit) has been reported to reduce postharvest fungal diseases in citrus fruits and other horticultural commodities (7)(8)(9)(10). For instance, the essential oil extracted from pompia leaves effectively controlled the growth of P. digitatum (8).…”