Cited by 59Essential Oils and Antimicrobial ActivityMycotoxins in Agriculture and FoodInsect Pest Control Strategies

Antiaflatoxigenic and antioxidant activity of an essential oil from Ageratum conyzoides L.

Patil, Rajaram P, Nimbalkar, Mansingraj S, Jadhav, Umesh U, Dawkar, Vishal V, Govindwar, Sanjay P·2010·Journal of the Science of Food and Agriculture

Abstract

BACKGROUND: Aflatoxin contamination of various commodities can occur as a result of infection, mainly by Aspergillus flavus and Aspergillus parasiticus. Every year, almost 25% of the world's food supply is contaminated by mycotoxins. Aflatoxins B(1), B(2), G(1) and G(2), which occur naturally, are significant contaminants of a wide variety of commodities. A number of biological activities have been associated with Ageratum conyzoides. We have therefore investigated the antiaflatoxigenic, antioxidant and antimicrobial activity of essential oils of A. conyzoides. This could help to turn A. conyzoides, a nuisance weed, into a resource. RESULTS: The essential oil of Ageratum conyzoides L. shows the presence of 12 compounds when analyzed by gas chromatography-mass spectrometry. The growth and aflatoxin production of the toxigenic strain Aspergillus parasiticus was completely inhibited by essential oil. All the studied concentrations of the oil demonstrate a reduction in mycelia growth and decreased production of different aflatoxins in fungi, as revealed by liquid chomatographic-tandem mass spectrometric analysis. Volatiles from macerated green leaf tissue of A. conyzoides were also effective against A. parasiticus. The strongest antibacterial activity was observed against the bacteria Staphylococcus aureus and Bacillus subtilis in a disk diffusion bioassay. Essential oil and methanol extract of A. conyzoides L. were assayed for their antioxidant activity. Methanol extract showed the highest antioxidant activity in FRAP and DPPH assay, whereas essential oil showed greater lipid peroxidation inhibition than methanol extract. CONCLUSION: The plant's ethno-medicinal importance, antioxidant potential, inhibitory activity against the Aspergillus group of fungi and production of aflatoxins may add a new dimension to its usefulness in the protection of stored product.

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Crossref · 10.1002/jsfa.3857

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  • Ageratum conyzoides essential oil, mainly constituted by precocene I and caryophyllene, had good capacity for preventing lipid peroxidation using liver homogenate as substrate.

    “The essential oil of Ageratum conyzoides L., mainly constituted by precocene I and caryophyllene, possessed good capacity for preventing lipid peroxidation, using as lipid substrate liver homogenate [51].”
  • Ageratum conyzoides essential oil had better lipid peroxidation prevention than BHA.

    “The results were even better than those found for the reference BHA.”
  • Ageratum conyzoides essential oil had better hydroxyl radical scavenging in the benzoic acid method than in the deoxyribose method; explained by relative reactivity of hydroxyl radical towards the substrates.

    “In the benzoic acid hydroxylation method, the essential oil presented better activity than in the deoxyribose method. The authors explained such results to the relative reactivity of hydroxyl radical towards the substrates deoxyribose and benzoic acid.”
  • Ageratum conyzoides methanolic extracts had low capacity for preventing lipid oxidation but were more effective than the essential oil in the DPPH assay.

    “Ageratum conyzoides methanolic extracts that had low capacity for preventing lipid oxidation, in the DPPH assay were revealed to be more effective than the essential oil [51].”
  • Not always the best activity found in the TBARS assay corresponds to the best ability to scavenge DPPH radicals.

    “Not always the best activity found in the TBARS assay also corresponds to the best ability to scavenge DPPH radicals. Such was found [44,51].”

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Authors
Patil, R. P., Nimbalkar, M. S., Jadhav, U. U., Dawkar, V. V., & Govindwar, S. P.
Affiliations
Shivaji University (IN)
Corresponding author
Patil, Rajaram P
Venue
Journal of the Science of Food and Agriculture
Publisher
Wiley
Published
2010-01-12
Volume
90
Issue
4
Pages
608-614
ISSN
  • 0022-5142 (ISSN-L)
  • 1097-0010
OpenAlex
W2002799085
Cited by
59
References
42
Citations by year
2026: 4 · 2025: 4 · 2024: 8 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 1 · 2017: 3 · 2016: 2 · 2015: 2 · 2014: 4 · 2013: 6 · 2012: 7
FWCI
8.33
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of the Science of Food and Agriculture (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycotoxins in Agriculture and Food
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Insect Pest Control Strategies
Keywords
Ageratum conyzoides, essential oils, antiaflatoxigenic activity, antioxidant activity, Aspergillus parasiticus, aflatoxin production, mycotoxin contamination, antimicrobial activity, Staphylococcus aureus, Bacillus subtilis, lipid peroxidation inhibition, stored product protection, weed utilization
MeSH terms
Aflatoxins, Anti-Bacterial Agents, Antifungal Agents, Antioxidants, Aspergillus, Bacillus, Chromatography, Liquid, Food Microbiology, Oils, Volatile, Plant Extracts, Plant Leaves, Mycelium, Ageratum, Tandem Mass Spectrometry

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