Recent development of aflatoxin contamination biocontrol in agricultural products

Mwakinyali, Silivano Edson; Ding, Xiaoxia; Zhang, Ming; Wang, Tong; Zhang, Qi; Li, Peiwu

doi:10.1016/j.biocontrol.2018.09.012

Cited by 62 publications

(35 citation statements)

References 112 publications

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“…The temperature, kernel moisture content and relative humidity during storage all influence the physiological processes of fungi. As demonstrated, 18 -19 • C temperature and 12 -13% moisture content were the limiting factors for the growth and activity of the Aspergilli (Villers, 2014;Mwakinyali et al, 2019), although lower temperature (8 -10 • C) may also be permissive for growth and mycotoxin production when the grain moisture content is higher (Mannaa and Kim, 2017). Although these values are accepted widely in good storage practices under continental climatic conditions the relative humidity of grain silos are higher during the cold months, which results in higher water binding by the grains.…”

Section: Fungal Activity and Aflatoxin Production In Stored Grainsmentioning

confidence: 84%

Adverse Effects, Transformation and Channeling of Aflatoxins Into Food Raw Materials in Livestock

et al. 2019

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Section: Fungal Activity and Aflatoxin Production In Stored Grainsmentioning

confidence: 84%

Adverse Effects, Transformation and Channeling of Aflatoxins Into Food Raw Materials in Livestock

et al. 2019

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“…Conversely, the AFT-albumin adduct with a longer half-life of www.bosaljournals/chemint/ editorci@bosaljournals.com 30-60 days, relative stability and minimum variability can be estimated in peripheral blood to measure the long-term AFT exposure (Williams et al, 2004). Results revealed that various factors are responsible for AFTs production and all living organisms are vulnerable for its toxic effects (Asare Bediako et al, 2019;Blankson et al, 2019;Cheng et al, 2019;Dí az Nieto et al, 2019;Frisvad et al, 2019;Gummadidala et al, 2019;Hamza et al, 2019;Magzoub et al, 2019;Mwakinyali et al, 2019;Shahbazi and Shavisi, 2019;Singh and Cotty, 2019;Tsounidi et al, 2019;Wang et al, 2019a;Wang et al, 2019b;Wu et al, 2019;Xie et al, 2019a;Xie et al, 2019b;Yu et al, 2019;Zeng et al, 2019;Zhao et al, 2019;Zhou et al, 2019). So far, there is need to develop the detoxification methods to save food and feed items without harming the nutritional and sensory characteristics.…”

Section: Detection and Exposure Assessment Of Aftsmentioning

confidence: 99%

Aflatoxins biosynthesis, toxicity and intervention strategies: A review

Int¹

2019

Preprint

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Aflatoxins (AFTs) are toxic products of fungal metabolism, associated with serious health consequences and substantial economic losses to agriculture, livestock and poultry sectors, particularly in the developing countries. This review outlines the current information on AFTs in terms of historical background, classification, relative occurrence and co-existence with other mycotoxins in various food commodities. The phenomenon of aflatoxin (AFT) biosynthesis has been elucidated with reference to molecular basis, genetic regulation and factors affecting the AFT production. Moreover, the in vivo disposition kinetics, toxicological action and toxico-pathological consequences of AFTs have also been highlighted. Currently employed strategies for the detection and detoxification of AFTs, biomarkers of exposure assessment, potential economic impact and regulatory considerations regarding the AFTs have been emphasized.

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“…Several bacterial species such as Bacillus subtilis, Lactobacillus spp, Pseudomonas spp, Ralstonia spp and Burkholderia spp have been found to inhibit the growth of Aspergillus in laboratory experiments 46 . Also, fungi like Aspergillus giganteus and some marine fungi possess antifungal proteins which are capable of inhibiting the growth of several pathogenic filamentous fungi 47,48 .…”

Section: Introductionmentioning

confidence: 99%

Antagonistic Efficiency of Aspergillus giganteus as a Biocontrol Agent against Aflatoxigenic Aspergillus flavus Infecting Maize

Krishnamurthy¹,

Padma²,

Dhandapani³

2020

J. Pure Appl. Microbiol.

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Aspergillus flavus is a fungal pathogen which infects maize crops and produces aflatoxin thus bringing about huge losses in crop production. Developing biocontrol agents against Aspergillus flavus has been the best strategy for the control of contamination in the fields. The aim of this study was to evaluate the biocontrol potential of Aspergillus giganteus against A. flavus by in vitro coculture studies. The effect of antagonism was studied by varying the carbon and nitrogen sources and under different interacting conditions of pH, temperature and water activities. The conidia production by A. flavus during coculture conditions favourable for antagonism was also assessed. A significantly notable growth inhibition of about 86.1% was brought about by A. giganteus in the coculture, which surrounded the mycelia of pathogenic A. flavus, arresting its growth. A maximum inhibition of 86.1% was observed when sucrose was used as the carbon source and a significantly higher inhibition of 90.93% was seen when beef extract was used as the nitrogen source. Among the different temperatures tested, the highest inhibition was observed at 30°C which was 87.43%. An increasing trend in the inhibitions were seen with decrease in pH and water activity (a w), where, the highest inhibition was 89.75% for pH 6.0 and 94.03% for a w 0.846. Drastic reductions in conidial number and halting of sclerotia production was observed in coculture clearly suggesting that A. giganteus will serve to be a potent and promising biocontrol strain under different environmental conditions.

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Recent development of aflatoxin contamination biocontrol in agricultural products

Cited by 62 publications

References 112 publications

Adverse Effects, Transformation and Channeling of Aflatoxins Into Food Raw Materials in Livestock

Adverse Effects, Transformation and Channeling of Aflatoxins Into Food Raw Materials in Livestock

Aflatoxins biosynthesis, toxicity and intervention strategies: A review

Antagonistic Efficiency of Aspergillus giganteus as a Biocontrol Agent against Aflatoxigenic Aspergillus flavus Infecting Maize

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