Ageratum conyzoides essential oil as aflatoxin suppressor of Aspergillus flavus

The hazardous nature of aflatoxins to human and animals necessitate the need for establishment of control measures. The objective of this study was to evaluate the inhibition of growth and aflatoxin production of Aspergillus flavus strain (ATCC 16872) by various essential oils in Yeast Extract Sucrose (YES) growth media at 25°C. Essential oils of basil, fennel, coriander, caraway, peppermint and rosemary were tested for their effects on mycelial growth and aflatoxin production. Aflatoxin B1 production was determined by high performance liquid chromatography (HPLC). The findings of this study revealed the antifungal efficacy of the all tested essential oils. The extent of inhibition of fungal growth and aflatoxin production was dependent on the type and concentration of essential oils used. The complete inhibition of Aspergillus flavus growth was observed at 1000 ppm concentrations of essential oils of basil, coriander, caraway and rosemary. While, essential oils of basil and coriander showed marked inhibition of aflatoxin B1 produced by Aspergillus flavus at all concentrations tested 500,750 and 1000 ppm.

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“…Or ultra-structural changes depending on essential oil concentration as in Ageratum. Conyzoides [28].…”

Section: Discussionmentioning

confidence: 99%

In Vitro Inhibition of Growth and Aflatoxin B1 Production of Aspergillus Flavus Strain (ATCC 16872) by Various Medicinal Plant Essential Oils

Deabes¹,

El-Soud²,

El-Kassem³

2011

Macedonian Journal of Medical Sciences

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“…Fungal cells are supported by an internal hydrostatic pressure acting on the cell wall, rather than by an internal proteinaceous cytoskeleton as with animal cells, although a comparable cytoskeleton is essential for cell function [15]. Irreversible morphological changes in the cell wall and plasma membrane of A. flavus caused by Ageratum conyzoides extract have been reported [16]. de billerbeck et al [17] reported a decrease in the cell wall thickness of A. niger caused by the essential oil of Cymbopogon nardus.…”

Section: Discussionmentioning

confidence: 99%

The effect of the acetone extract of Arctotis arctotoides (Asteraceae) on the growth and ultrastructure of some opportunistic fungi associated with HIV/AIDS

2015

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In this study, the effect of the acetone extract of Arctotis arctotoides (L.f.) O. Hoffm. (Asteraceae) on the growth and ultrastructure of some opportunistic fungi associated with HIV/AIDS was analyzed by means of scanning electron microscope (SEM). Remarkable morphological alterations in the fungal mycelia which were attributed to the loss of cell wall strength ranged from loss of turgidity and uniformity, collapse of entire hyphae to evident destruction of the hyphae. The elements responsible for giving the fungi their characteristic virulence were detected and quantified by energy dispersive X-ray microanalysis techniques. X-ray microanalysis showed the specific spectra of sodium, potassium and sulfur as the principal intersection of the four pathogenic fungi studied. Since these ions have the potential of fostering fungal invasion by altering the permeability of hosts' membranes, their presence was considered inherent to the pathogenicity of the opportunistic fungi. Hence, these findings indicate the potential of the crude extract of A. arctotoides in preventing fungal invasion and subsequent infection of host's membranes.

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“…There are many essential oils produced by medicinal plants that have been tested for their inhibiting ability of alatoxin production [69,70]. Diferent ratios (50, 25, 12.5, 6.25%) of each essential oil were placed onto a cylinder cup (6 mm dia) on agar plate streaked with A. lavus.…”

Section: Role Of Essential Oils On the Inhibition Of Alatoxins Producmentioning

confidence: 99%

Control of Aflatoxin Production Using Herbal Plant Extract

Saleem¹,

Sadia²,

Awan³

2017

Aflatoxin-Control, Analysis, Detection and Health Risks

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The alatoxins are a group of chemically similar poisonous, carcinogenic fungal secondary metabolites produced by Aspergillus lavus, A. parasiticus, and A. nomius, which are abundant in warm and humid regions of the world. They are probably the most intensively researched toxins in the world due to their carcinogenic and mutagenic efects. Alatoxins have also been identiied as a potential biological weapon for food and water contamination. The four major alatoxins commonly isolated from diferent foods and feed stufs are AFB1, AF B2, AFG1, and AFG2. Alatoxin contamination of food and feed has gained global signiicance as a result of its deleterious efects on human as well as livestock health including gastrointestinal dysfunction, reduced feed utilization, anemia, jaundice, liver damage and immunity suppression. The proitability and marketing of various agricultural products are adversely afected by either contamination of alatoxins or alatoxin-producing fungi. The foods at highest risk of alatoxin contamination are maize, chilies, peanuts, and coton seeds. There are various physical, chemical, and natural methods investigated to prevent alatoxin production and the growth of alatoxin-producing fungus in various agricultural products. Here, we describe various natural plant extracts that would be potential source of controlling alatoxin production in agricultural products.

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Ageratum conyzoides essential oil as aflatoxin suppressor of Aspergillus flavus

Cited by 141 publications

References 29 publications

<i>In Vitro</i> Inhibition of Growth and Aflatoxin B1 Production of <i>Aspergillus Flavus</i> Strain (ATCC 16872) by Various Medicinal Plant Essential Oils

<i>In Vitro</i> Inhibition of Growth and Aflatoxin B1 Production of <i>Aspergillus Flavus</i> Strain (ATCC 16872) by Various Medicinal Plant Essential Oils

The effect of the acetone extract of Arctotis arctotoides (Asteraceae) on the growth and ultrastructure of some opportunistic fungi associated with HIV/AIDS

Control of Aflatoxin Production Using Herbal Plant Extract

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