EVALUATION OF <i>AMOMUM SUBULATUM</i> ROXB OIL AS A SOURCE OF BOTANICAL FUNGITOXICANT FOR THE PROTECTION OF MANGO FRUITS FROM FUNGAL ROTTING

Dubey, Rama Kant; Kumar, Rajesh; Jaya,; Chansouria, J. P. N.; Dubey, Nawal Kishore

doi:10.1111/j.1745-4565.2008.00108.x

Cited by 15 publications

(6 citation statements)

References 20 publications

(34 reference statements)

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“…and Botryodiplodia theobromae Pat., are the main strains that cause mango to accelerate the deterioration of mango aer picking. In other studies, Amomum subulatum Roxb oil 54 and mustard essential oil 55 exhibited antifungal activity against two mango rotting fungi viz. including Colletotrichum gloeosporioides Penz.…”

Section: Antibacterial Activitymentioning

confidence: 82%

Preparation and antimicrobial activity of thyme essential oil microcapsules prepared with gum arabic

Cai

Duan

et al. 2019

RSC Adv.

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Section: Antibacterial Activitymentioning

confidence: 82%

Preparation and antimicrobial activity of thyme essential oil microcapsules prepared with gum arabic

Cai

Duan

et al. 2019

RSC Adv.

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“…This observation complies with in vitro application of ethanol in the disc volatilization bioassay, which did not inhibit the growth of SER associated fungi, completely (Ekanayake, 2017;Kodituwakku, 2018). Dubey et al, (2008) have found that the fumigation treatment of essential oil of Amomum subulatum Roxb. leaves was capable of controlling SER of mango (cv.…”

Section: Fumigation Treatment For Mango With Essential Oilsmentioning

confidence: 99%

Pathogenicity of Stem-end Rot Associated Fungi Isolated from Karthakolomban Mango and Their Control by Spray and Fumigation Treatments with Selected Essential Oils

2020

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Purpose: Stem-end rot (SER) is a major disease of mango that causes serious postharvest losses. Application of fungicides is environmentally unsound and is being practiced currently in its control. This study was conducted to develop essential oil treatment systems as eco-friendly strategies to control SER of Karthakolomban mango and to determine the pathogenicity of several SER associated fungi.Research Method: Pathogenicity of four fungal isolates in SER was assessed by inoculating them on Karthakolomban mango fruits. Karthakolomban mango fruits were subjected to spray and fumigation treatments using four essential oils and their pathological, physicochemical and sensory properties were evaluated after a 8-day storage at 12 -14 ºC.Findings: Lasiodiplodia theobromae, Pestalotiopsis sp., Phomopsis sp. and Xylaria feejeensis were the major SER pathogens of mango. X. feejeensis was identifi ed as a SER pathogen for the fi rst time in Sri Lanka. Spray and fumigation treatments conducted using basil, clove, cinnamon leaf and cinnamon bark oils eff ectively controlled SER of Karthakolomban mango stored at 12 -14 ºC for 8 days. Mango sprayed with 1.6 µL/mL cinnamon bark oil has displayed no SER after induced ripening. None of the treatments caused drastic alterations in physicochemical and sensory properties of mango.Research Limitations: Storage period of mango was restricted to 8 days due to the initiation of natural ripening which was the major limitation to achieving a further enhanced shelf life.Originality/value: The treatment strategies developed by this research could be commercialized as biosafe SER control strategies in reducing postharvest losses of mango in the local and international trade. *Percentage Stem-End Rot; Each data point represents the mean of eight replicates ± standard error. 1 Means sharing a common letter(s) are not signifi cantly diff erent by Tukey's pair-wise comparison test at p < 0.05. 2 Means sharing a common letter(s) are not signifi cantly diff erent by Kruskal Wallis non-parametric test at p < 0.05.

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“…Furthermore, fumigation with the essential oil of Amomum subulatum leaf has successfully controlled SER of mango (cv. Dasheri) (Dubey et al, 2008).…”

Section: June 2020mentioning

confidence: 99%

In vitro antifungal efficacy of selected essential oils in controlling fungi associated with the stem-end rot disease of mango (cv. Karutha Colomban) fruits and characterisation of antifungal components

Kodituwakku

Ekanayake

Abeywickrama

et al. 2020

J. Natn. Sci. Foundation Sri Lanka

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Karutha Colomban is one of the most delightful mango varieties popular among Sri Lankan consumers. A signifi cant postharvest loss of mango takes place every season due to diseases including stem-end rot (SER), which is caused by a group of endophytic fungal pathogens. In this research, in vitro antifungal effi cacy of diff erent concentrations of essential oils of basil, clove, and cinnamon were evaluated for their ability to control SER causing fungal pathogens of mango (cv. Karutha Colomban) as bio-safe alternatives to conventional fungicides, by conducting liquid and disc volatilisation bioassays. Major bioactive compounds of the selected essential oils were identifi ed by gas chromatography-mass spectroscopy (GC-MS). Basil and cinnamon bark oils (0.20-0.30 μL/mL) in liquid bioassay showed high effi cacy against Lasiodiplodia theobromae, while basil and cinnamon leaf oils (0.40-0.60 μL/mL) successfully inhibited Pestalotiopsis sp. Cinnamon bark oil (0.60 μL/mL) was identifi ed as the most eff ective oil against Phomopsis sp. According to disc volatilisation bioassay, vapour of cinnamon oils (0.20-0.40 μL/mL) was the most eff ective in controlling L. theobromae. Pestalotiopsis sp. was effi ciently controlled by clove and cinnamon bark oil (0.20-0.60 μL/mL) vapour. In vapour phase, clove and cinnamon oils (0.40 μL/mL) were the most eff ective against Phomopsis sp. According to GC-MS characterisation, methyl chavicol was the most abundant antifungal component in basil oil while it was (E)-cinnamaldehyde in cinnamon bark oil. Moreover, eugenol displayed the highest abundance in clove and cinnamon leaf oils. Based on in vitro studies, it could be concluded that cinnamon bark oil in liquid and vapour phases demonstrated a higher antifungal effi cacy among the tested essential oils in controlling fungal pathogens causing SER of mango.

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EVALUATION OF AMOMUM SUBULATUM ROXB OIL AS A SOURCE OF BOTANICAL FUNGITOXICANT FOR THE PROTECTION OF MANGO FRUITS FROM FUNGAL ROTTING

Cited by 15 publications

References 20 publications

Preparation and antimicrobial activity of thyme essential oil microcapsules prepared with gum arabic

Preparation and antimicrobial activity of thyme essential oil microcapsules prepared with gum arabic

Pathogenicity of Stem-end Rot Associated Fungi Isolated from Karthakolomban Mango and Their Control by Spray and Fumigation Treatments with Selected Essential Oils

In vitro antifungal efficacy of selected essential oils in controlling fungi associated with the stem-end rot disease of mango (cv. Karutha Colomban) fruits and characterisation of antifungal components

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