In vitro susceptibility of strains ofPenicillium viridicatum andAspergillus flavus toβ-irradiation

Ds, Malla; Jf, Diehl; Dk, Salunkhe

doi:10.1007/bf02142195

Cited by 6 publications

(2 citation statements)

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“…presented a similar D 10 value (0.3 to 0.35 kGy), whereas B. cinerea and R. stolonifer showed D 10 values of 0.55 and 1.0 kGy, respectively. Malla and others () reported that Penicillium viridicatum strains were more sensitive to gamma‐radiation than strains of A. flavus . Their total inhibition was obtained with a dose of 2 kGy.…”

Section: Irradiation To Control Mold Growth and Mycotoxinsmentioning

confidence: 99%

Irradiation for Mold and Mycotoxin Control: A Review

Calado

Venâncio

Abrunhosa

2014

Comp Rev Food Sci Food Safe

141

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The mycotoxin issue requires constant vigilance from economic, regulatory, and scientific agents to minimize its toxicological effects on human and animals. The implementation of good practices to avoid fungal growth and mycotoxin production on agricultural commodities is essential to achieve most restrictive safety standards; however, the contribution of novel technologies that may act on postharvesting and poststorage situations may be equally important. Several methodologies, more or less technologically advanced, may be used for this purpose. In this work, we review the role, contribution, and impact of irradiation technology to control the presence of fungi and mycotoxins in food and in feed. The effect of this technology on the viability of mold spores and on the elimination of mycotoxins is reviewed. A critical evaluation of the advantages and disadvantages of irradiation in this context is presented.

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Section: Irradiation To Control Mold Growth and Mycotoxinsmentioning

confidence: 99%

Irradiation for Mold and Mycotoxin Control: A Review

Calado

Venâncio

Abrunhosa

2014

Comp Rev Food Sci Food Safe

141

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“…pre-packed sliced bread, would reduce or increase the health risk caused by these products. The effects of repeated irradiation (Mfinzner & Diehl, 1969) and of other factors (Malla, Diehl & Salunkhe, 1967;Mfinzner, 1969) on the radiation resistance of A. flavus have been reported.…”

mentioning

confidence: 96%

Response of toxigenic and non-toxigenic strains ofAspergillus flavusto irradiation

1971

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Condidia-bearing cultures of 3 aflatoxin producing and 3 non-toxigenic strains of A.flavus were irradiated 16 times in 6 months at a dosage of 160 -240 krad each time. Subcultures were grown between irradiations and about 70% of 60 subcultures survived all irradiations. Survival was approximately the same in both groups.Surviving subcultures were refrigerated and transferred to fresh medium each 6 months. One, 2 and 3 years after the multiple radiation treatment the subcultures were grown on rice. Of the 3 toxigenic strains, 0, 30 and 50%, respectively, were able to produce aflatoxins after I year; 50, 30 and 60%, respectively, after 3 years. Often the aflatoxin yield was much lower in irradiated subcultures than in the parent strain but sometimes it was higher.Two of the 3 non-toxigenic strains remained aflatoxin-negative, while of 14 subcultures of the third strain, 2 were positive after 2 years, and 4 more after 3 years.These results are not due to loss or gain mutations or to repair processes. A. flavus is heterocaryotie and an accumulation of nuclei possessing or not the genetic information for attatoxin synthesis appears possible in the course of many transfers to fresh medium. This may lead to loss, recovery or gain of the ability to produce aflatoxins.

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�ber einige die Strahlenempfindlichkeit von Schimmelpilzen beeinflussende Faktoren

Münzner

1969

Archiv. Mikrobiol.

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In vitro susceptibility of strains ofPenicillium viridicatum andAspergillus flavus toβ-irradiation

Cited by 6 publications

References 1 publication

Irradiation for Mold and Mycotoxin Control: A Review

Irradiation for Mold and Mycotoxin Control: A Review

Response of toxigenic and non-toxigenic strains ofAspergillus flavusto irradiation

�ber einige die Strahlenempfindlichkeit von Schimmelpilzen beeinflussende Faktoren

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