Effects of Essential Oil Vapour Treatment on the Postharvest Disease Control and Different Defence Responses in Two Mango (Mangifera indica L.) Cultivars

Perumal, Anand Babu; Sellamuthu, Periyar Selvam; Nambiar, Reshma B.; Sadiku, Rotimi

doi:10.1007/s11947-017-1891-6

Cited by 73 publications

(44 citation statements)

References 37 publications

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“…Decreases in the activity of antioxidant enzymes (CAT, POD and APX) during on-tree lemon fruit development were reported by Serna-Escolano et al [ 39 ]. However, the increased antioxidant enzyme activities found in treated lemons agrees with previous reports, in which treatments of mango [ 40 ] and avocados [ 38 ] with thymol or thyme essential oils improved antioxidant enzyme activities and free radical scavenging activity and enhanced resistance of fruit tissues against fungal decay. The role of antioxidant enzymes in improving disease resistance in fruit and vegetables has been reported to occur throughout regulation of reactive oxygen species metabolism [ 36 ].…”

Section: Resultssupporting

confidence: 91%

Thymol Encapsulated into HP-β-Cyclodextrin as an Alternative to Synthetic Fungicides to Induce Lemon Resistance against Sour Rot Decay

et al. 2020

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Consumers demand the use of eco-friendly fungicides to treat fruit and vegetables and governmental authorities have unauthorized the application of chemical antifungals for the efficient control of sour rot. In the present research, the microwave irradiation (MW) method was used to encapsulate thymol into 2-hydroxylpropyl-beta-cyclodextrin (HP-β-CD) and the effect of these HP-β-CD on controlling sour rot in citrus fruit, caused by Geotrichum citri-aurantii, was evaluated. Amounts of 25 and 50 mM of HP-β-CD-thymol were used, and compared with propiconazole, to control the decay of inoculated lemon fruit. The treatments were performed in curative and preventive experiments. The incidence and severity of Geotrichum citri-aurantii in 25 and 50 mM HP-β-CD-thymol-treated fruit were reduced in both experiments. The preventive 50 mM HP-β-CD-thymol treatment showed the best effect, reducing the sour rot, respiration rate and fruit weight loss during storage at 20 °C. HP-β-CD-thymol increased polyphenol concentration and the activity of antioxidant enzymes, such as catalase (CAT), ascorbate peroxidase (APX) and peroxidase (POD) in lemon peel, and the highest effects were found with the 50-mM dose. In conclusion, the results show that the use of thymol encapsulated by MW into HP-β-CD could be an effective and sustainable tool, a substitute to the synthetic fungicides, for G. citri-auriantii control in citrus fruit.

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Section: Resultssupporting

confidence: 91%

Thymol Encapsulated into HP-β-Cyclodextrin as an Alternative to Synthetic Fungicides to Induce Lemon Resistance against Sour Rot Decay

et al. 2020

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“…related the antimicrobial activity of PEO to the presence of neral and geranial, the two isomers of citral. The results in our study were, in general, consistent with the data from the literature, where the antifungal effectiveness of EOs, delivered as vapor, was assessed for postharvest disease control . The application of EOs in the vapor phase is preferable to application in the liquid phase owing to its volatility, which leads to better activity, requires a smaller amount, and does not change the sensory properties of food .…”

Section: Discussionsupporting

confidence: 90%

Effectiveness of essential oil extracted from pompia leaves against Penicillium digitatum

et al. 2020

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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

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“…Previous studies have demonstrated that carvacrol could induce defense‐related enzymes in table grape and strawberry (Martínez‐romero et al, ). Eugenol can inhibit postharvest decay of apple, orange, and mango by the activation of defense‐related enzymes (Amiri, Dugas, Pichot, & Bompeix, ; Perumal, Sellamuthu, Nambiar, & Sadiku, ; Zeng, Zhang, Chen, & Fu, ). Several enzymes related to preventing postharvest pathogen diseases were assessed in the current study.…”

Section: Discussionmentioning

confidence: 99%

Carvacrol and eugenol inhibit postharvest soft rot disease by enhancing defense response in peaches during storage

Zhou

Wei

Peng

et al. 2019

J Food Process Preserv

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Peaches are in high demands because of their nutritional value and delicious flavor, but often become unmarketable due to the fungus infection. In this study, carvacrol and eugenol were used to preserve peaches. Rhizopus stolonifer growth was completely inhibited by carvacrol at 32 µl/Lair and eugenol at 64 µl/Lair. Carvacrol at 0.5 µl/Lair and eugenol at 1 µl/Lair significantly reduced the incidence and severity of soft rot decay in artificially inoculated peaches. Also, carvacrol and eugenol significantly reduced the natural incidence of soft rot disease and maintained high sensory acceptance and quality of peaches during storage. The activities of defense-related enzymes were enhanced by carvacrol and eugenol fumigation, and the contents of phenolics, flavonoids, lignin, and hydroxyproline-rich glycoprotein in these two oils treated fruit, were much higher than untreated control during storage. These observations indicted that carvacrol and eugenol could preserve peach fruit during postharvest storage. Practical applicationsCarvacrol and eugenol showed great potential application in the preservation of peach fruit during postharvest storage, exhibiting high antifungal activity against Rhizopus stolonifer and enhancing defense response to soft rot disease.

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Effects of Essential Oil Vapour Treatment on the Postharvest Disease Control and Different Defence Responses in Two Mango (Mangifera indica L.) Cultivars

Cited by 73 publications

References 37 publications

Thymol Encapsulated into HP-β-Cyclodextrin as an Alternative to Synthetic Fungicides to Induce Lemon Resistance against Sour Rot Decay

Thymol Encapsulated into HP-β-Cyclodextrin as an Alternative to Synthetic Fungicides to Induce Lemon Resistance against Sour Rot Decay

Effectiveness of essential oil extracted from pompia leaves against Penicillium digitatum

Carvacrol and eugenol inhibit postharvest soft rot disease by enhancing defense response in peaches during storage

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