Pre-storage chitosan-thyme oil coating control anthracnose in mango fruit

Shah, Sadiq; Hashmi, Majid Suhail; Qazi, Ihsan Mabood; Durrani, Yasser; Sarkhosh, Ali; Hussain, Ibrar; Brecht, Jeffrey K.

doi:10.1016/j.scienta.2021.110139

Cited by 33 publications

(16 citation statements)

References 49 publications

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“…They reduce the pH, alter the processes of respiration and energy production, the synthesis of cellular components, and the loss of cell homeostasis. In addition, the fungus changes the permeability of the mitochondrial membrane, and, finally, the pathogen dies [32][33][34]. In terms of these effects, essential oils are considered bio-fungicides with multiple target sites and modes of action.…”

Section: Essential Oilsmentioning

confidence: 99%

Non-Chemical Treatments for the Pre- and Post-Harvest Elicitation of Defense Mechanisms in the Fungi–Avocado Pathosystem

et al. 2021

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The greatest challenge for the avocado (Persea americana Miller) industry is to maintain the quality of the fruit to meet consumer requirements. Anthracnose is considered the most important disease in this industry, and it is caused by different species of the genus Colletotrichum, although other pathogens can be equally important. The defense mechanisms that fruit naturally uses can be triggered in response to the attack of pathogenic microorganisms and also by the application of exogenous elicitors in the form of GRAS compounds. The elicitors are recognized by receptors called PRRs, which are proteins located on the avocado fruit cell surface that have high affinity and specificity for PAMPs, MAMPs, and DAMPs. The activation of defense-signaling pathways depends on ethylene, salicylic, and jasmonic acids, and it occurs hours or days after PTI activation. These defense mechanisms aim to drive the pathogen to death. The application of essential oils, antagonists, volatile compounds, chitosan and silicon has been documented in vitro and on avocado fruit, showing some of them to have elicitor and fungicidal effects that are reflected in the postharvest quality of the fruit and a lower incidence of diseases. The main focus of these studies has been on anthracnose diseases. This review presents the most relevant advances in the use of natural compounds with antifungal and elicitor effects in plant tissues.

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Section: Essential Oilsmentioning

confidence: 99%

Non-Chemical Treatments for the Pre- and Post-Harvest Elicitation of Defense Mechanisms in the Fungi–Avocado Pathosystem

et al. 2021

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“…The phenols carvacrol (75.9%) and thymol (4.9%), as far as the monoterpene hydrocarbons γ-Terpinene (4.7%) and cymene (6.6%), were the predominant components of OEO. According to Shah et al [3], the main constituents of OEO (carvacrol, thymol, and γ-Terpinene) are considered responsible for the antifungal activity. Due to the strong phenolics rings in their molecules structures, these components cause disintegration/dysfunction of cellular membranes, leading to depletion of substrate required for ATP production and cellular death.…”

Section: Oregano Essential Oil Characterizationmentioning

confidence: 99%

“…The primary postharvest disease in mango is anthracnose caused by Colletotrichum gloeosporioides. Anthracnose disease causes about 30-60% of total production losses in mango-producing countries [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Inactivation of Salmonella enterica and Colletotrichum gloeosporioides on Whole Mangoes by Application of an Antimicrobial Coating Containing Oregano Essential Oil

2021

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Mangoes are susceptible to bacterial and fungal contamination during storage and transportation. This study investigated the effectiveness of pectin-based coatings containing oregano essential oil (OEO) to reduce Salmonella enterica contamination and decrease anthracnose disease on whole mangoes. A cocktail of five strains of Salmonella spp. and Colletotrichum gloeosporioides strains was spot inoculated in mangoes to verify the antibacterial and antifungal activity of OEO. The inoculated mangoes were coated with pectin-based coatings containing 0, 0.5, 0.7, and 0.9% OEO. Coated fruits were stored for 11 days at 25 °C and 90% of relative humidity. All treatments with OEO effectively inhibited the growth of Salmonella, causing a reduction of 2.5 CFU/cm2 compared to the control treatment (0% OEO). In addition, coatings effectively inhibited the growth of C. gloeosporioides on the mango surface after 9 days of storage to the same extent as the traditional Prochloraz fungicide. The efficacy of coatings treatments was between 88.06 and 96.68% compared to the control treatment. Sensory analysis showed that the OEO did not affect the quality attributes of coated mango. Results showed the potential benefits of applying the pectin-based coatings with OEO as an alternative to control S. enterica and C. gloeosporioides in whole mangoes.

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“…Therefore, utilization of EOs as natural preservatives to extend food shelf-life is gaining interest in the food industry (12). Results of studies regarding the use of EOs as antimicrobial agents suggest that EOs can be promising alternatives to synthetic preservatives for postharvest fruits and vegetables (29)(30)(31). However, possible negative effects of EOs, such as organoleptic changes (especially smell and taste) and phytotoxicity effects on fresh produce, are sources of concern among handlers and consumers (32).…”

Section: Introductionmentioning

confidence: 99%

Biocontrol Potential of Essential Oils in Organic Horticulture Systems: From Farm to Fork

et al. 2022

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In recent decades, increasing attention has been paid to food safety and organic horticulture. Thus, people are looking for natural products to manage plant diseases, pests, and weeds. Essential oils (EOs) or EO-based products are potentially promising candidates for biocontrol agents due to their safe, bioactive, biodegradable, ecologically, and economically viable properties. Born of necessity or commercial interest to satisfy market demand for natural products, this emerging technology is highly anticipated, but its application has been limited without the benefit of a thorough analysis of the scientific evidence on efficacy, scope, and mechanism of action. This review covers the uses of EOs as broad-spectrum biocontrol agents in both preharvest and postharvest systems. The known functions of EOs in suppressing fungi, bacteria, viruses, pests, and weeds are briefly summarized. Related results and possible modes of action from recent research are listed. The weaknesses of applying EOs are also discussed, such as high volatility and low stability, low water solubility, strong influence on organoleptic properties, and phytotoxic effects. Therefore, EO formulations and methods of incorporation to enhance the strengths and compensate for the shortages are outlined. This review also concludes with research directions needed to better understand and fully evaluate EOs and provides an outlook on the prospects for future applications of EOs in organic horticulture production.

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Pre-storage chitosan-thyme oil coating control anthracnose in mango fruit

Cited by 33 publications

References 49 publications

Non-Chemical Treatments for the Pre- and Post-Harvest Elicitation of Defense Mechanisms in the Fungi–Avocado Pathosystem

Non-Chemical Treatments for the Pre- and Post-Harvest Elicitation of Defense Mechanisms in the Fungi–Avocado Pathosystem

Inactivation of Salmonella enterica and Colletotrichum gloeosporioides on Whole Mangoes by Application of an Antimicrobial Coating Containing Oregano Essential Oil

Biocontrol Potential of Essential Oils in Organic Horticulture Systems: From Farm to Fork

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