Post-harvest fungal ecology: Impact of fungal growth and mycotoxin accumulation in stored grain

Magan, Naresh; Hope, Russell; Cairns, Victoria; Aldred, David

doi:10.1007/978-94-017-1452-5_7

Cited by 176 publications

(179 citation statements)

References 15 publications

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“…Beetles and larvae feed on a very wide variety of dry vegetable substances, such as milled cereal products (Rees, 2004). Infestations not only cause significant losses of grains, they also elevate their temperature and moisture conditions that lead to an accelerated growth of molds, including toxigenic species (Magan et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Chemical composition and bio-pesticidal values of essential oil isolated from the seed of Heracleum persicum Desf. ex Fischer (Apiaceae)

Ebadollahi

Zavieh

Nazifi

et al. 2014

Span. j. agric. res.

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The present investigation was aimed to analyse the chemical composition of essential oil isolated from Heracleum persicum Desf. ex Fischer and assess its lethal and sub-lethal effects against Tribolium castaneum (Herbst). Essential oil from hydro-distilled seeds of H. persicum was analyzed by gas chromatography-mass spectrometry (GC-MS), and hexyl butyrate (50.58%), octyl acetate (9.80%) and hexyl hexanoate (8.75%) were found as principal constituents. Repellent activity, contact and fumigant toxicity and antifeedant effects of this oil were assessed against the adults of T. castaneum. The essential oil strongly repelled T. castaneum adults even at the lowest concentration (0.035 μL cm -2 ). Complete repellency (100%) occurred when the highest concentration (0.212 μL cm -2 ) was applied for 8 h. T. castaneum was very susceptible to H. persicum oil at both contact and fumigant bioassays. In the fumigant toxicity, essential oil killed the larvae, pupae and adults and significantly decreased larvae emerged from treated eggs. LC 10 to LC 40 values of fumigation adult's bioassay as sub-lethal concentrations were used to evaluate the antifeedant effects. H. persicum essential oil has significant antifeedant effects on T. castaneum adults and decrease of feeding happened when oil concentrations increased. The results of the present study indicate that essential oil of H. persicum, with wide bio-effects on T. castaneum, is a source of biologically active agents which may potentially prove to be efficient insecticides.Additional key words: essential oils; Heracleum persicum; toxicity; repellent; antifeedant.* Corresponding author: asgar.ebadollahi@gmail.com Received: 12-07-14. Accepted: 12-11-14.Abbreviations used: FDI (feeding deterrence index); GC (gas chromatography); LC 50 (lethal concentration required to kill 50% of the population); MS (mass spectrometry); PR (percentage of repellency); RH (relative humidity).

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Section: Introductionmentioning

confidence: 99%

Chemical composition and bio-pesticidal values of essential oil isolated from the seed of Heracleum persicum Desf. ex Fischer (Apiaceae)

Ebadollahi

Zavieh

Nazifi

et al. 2014

Span. j. agric. res.

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“…Infestation of stored products by pests could cause major losses because of the consumption of grains and the development of molds (Sauer et al 1984, Magan et al 2003. Since the repeated use of pesticides has increased the incidence of resistance in pests, integrated pest management has increasingly focused on the use of semiochemicals to protect agricultural products (Phillips 1997).…”

Section: Introductionmentioning

confidence: 99%

Antennal Sensilla of the New World Screwworm Fly, <I>Cochliomyia hominivorax</I> (Diptera: Calliphoridae)

Fernandes¹,

Pimenta

Linardi

2004

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“…Lund and Frisvad 72 found that grain samples with more than 7% contamination with P. verrucosum indicated OTA contamination, although no linear correlation between the two factors was obtained. The most important abiotic factors that influence growth and OTA production by such spoilage fungi include water availability, temperature, and when grain is moist, gas composition 74 . The interactions between these variables primarily determine whether mould growth will occur and if so the relative development of the fungal community.…”

Section: Cereals and Ochratoxin A Contaminationmentioning

confidence: 99%

Ochratoxin A and Brewing Technology: A Review

Anlı

Alkış

2010

Journal of the Institute of Brewing

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Ochratoxins are a hazardous group of mycotoxins produced as secondary metabolites by several fungi of the Aspergillus and Penicillium families. Ochratoxins have been detected and determined in foods and beverages, including barley, malt and beer, at ppb levels. Varied analytical methods have been developed for the detection of ochratoxin A [OTA] in cereals and beer. Ochratoxin A has hazardous effects on health and has been classified within group 2B, as a possible human carcinogen by IARC. Scientists have expressed great concern about the presence of ochratoxin A in foods. In this article, chemical structure, biosynthesis by microorganisms, analytical methods for testing, regulations, changes during brewing, and detoxification of OTA, are reviewed. Beer poses very little risk as a source of ochratoxin in the diet.

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Post-harvest fungal ecology: Impact of fungal growth and mycotoxin accumulation in stored grain

Cited by 176 publications

References 15 publications

Chemical composition and bio-pesticidal values of essential oil isolated from the seed of Heracleum persicum Desf. ex Fischer (Apiaceae)

Chemical composition and bio-pesticidal values of essential oil isolated from the seed of Heracleum persicum Desf. ex Fischer (Apiaceae)

Antennal Sensilla of the New World Screwworm Fly, <I>Cochliomyia hominivorax</I> (Diptera: Calliphoridae)

Ochratoxin A and Brewing Technology: A Review

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