Effect of γ-irradiation on the occurrence of pathogenic microorganisms and nutritive value of four principal cereal grains

Aziz, Nagy H.; Souzan, R.M.; Azza, Awatiful

doi:10.1016/j.apradiso.2005.10.006

Cited by 61 publications

(40 citation statements)

References 10 publications

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“…Irradiation at a dose of 5 kGy inactivated the fumonisin B1 by 96.6%, 87.1% and 100% on wheat, maize and barley respectively (Aziz et al, 2006). Similar trends were reported by Basson and Villiers (1992) in their studies with gamma irradiation.…”

Section: Resultssupporting

confidence: 75%

Effect of Heat Treatment and Gamma Irradiation on the Total Bacterial Count of Selected Millet Grains (Jowar, Bajra and Foxtail)

Dikkala¹,

Hymavathi²,

Roberts³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Resultssupporting

confidence: 75%

Effect of Heat Treatment and Gamma Irradiation on the Total Bacterial Count of Selected Millet Grains (Jowar, Bajra and Foxtail)

Dikkala¹,

Hymavathi²,

Roberts³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…Radiation doses up to 10 kGy are effective in microbial decontamination and pose no toxicological hazard or nutritional and microbiological problems in foods (Aziz et al 2006). In the present study, fungal growth in the PDA plates decreased with the increase in irradiation dosage when observed at two incubation intervals (Fig.…”

Section: Effect Of C-irradiationmentioning

confidence: 54%

Effect of γ-irradiation on fumonisin producing Fusarium associated with animal and poultry feed mixtures

2017

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Contamination of animal and poultry feeds by Fusarium and the mycotoxin Fumonisin B1 is frequent in the feed supply chain. The present study evaluated the prevalence of fumonisin B1 producing Fusarium among irradiated and non-irradiated animal and poultry feed mixtures. Further, the efficiency of c-rays (2.5, 5.0, 7.5, and 10.0 kGy) to minimize Fusarium growth and biosynthesis of fumonisin B1 in artificially inoculated feed was evaluated. A total of 108 feed samples were collected in which 45.37% of feed mixtures were contaminated with Fusarium species. Among the contaminated samples, the frequency levels of F. verticillioides and F. proliferatum were 42.59 and 24.07%, respectively. Out of the 98 Fusarium isolates from feed samples, 84.7% of F. verticillioides and 64.28% of F. proliferatum were positive for FUM1 set of primers. Fumonisin B1 biosynthesis by the FUM1 positive isolates in feed was confirmed by LC/MS which recorded 0.1-45 lg/g of feed. Fungal growth and viable count of Fusarium in PDA medium and feed decreased with increasing irradiation dosage. Interestingly, fumonisin content was 11 lg/g of feed in 2.5 kGy irradiated sample as compared to 5 lg/g of feed in non-irradiated control. Ionizing radiation at 7.5 kGy was found lethal for fungal growth and fumonisin production. Our findings suggest that c-radiation above 7.5 kGy effectively prevented fungal growth in feed mixtures and minimized the exposure of animal and human life to the potential risk of mycotoxin. Also it is necessary to maintain proper storage system for feeds until consumption.

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“…The 10 kGy dose, accepted by Codex Alimentarius Committee (WHO, 1994) is very effective for the microbiological decontamination of wheat (Triticum vilgare), barley (Hourdeum vulgare), corn (Zea mays) and sorghum (Sorghum biocoler), and does not provoke unfavorable nutritive effects to them. The small loss of some nutrients (thiamin 22-33%, and riboflavin 10-16%) could be compensated by beneficial effects of processing (Aziz et al, 2006). Researches with white rice fortified with folic acid, packed and later irradiated with necessary doses for insect disinfestations, showed vitamin retention in the food, with minimum nutrient losses (Dionísio et al, 2005).…”

Section: Cereals and Grainsmentioning

confidence: 99%

“…This review addresses the vitamin losses and retention in processed foods submitted to irradiation. Irradiation and nutrient stability Ionizing radiation can safely and effectively eliminate the pathogenic bacteria from the food (Crawford and Ruff, 1996;CENA, 2006;Evangelista, 2000;Loaharanu, 1996;Sommers et al, 2004), disinfest the fruits and vegetables (Crawford and Ruff, 1996;CENA, 2006;Evangelista, 2000;Sommers et al, 2004;Moy and Wong, 2002;Fan and Mattheis, 2001;Patil et al, 2004;Pellegrini et al, 2000;Hallman, 1999), extend the shelf life of many products through ripening delay (Crawford and Ruff, 1996;Kilcast, 1994;CENA, 2006;Evangelista, 2000;Moy and Wong, 2002), inhibit the sprouting of bulbs and tubers (CENA, 2006;Aziz et al, 2006;Rios and Penteado, 2003;Pezzutti et al, 2005, Pellegrini, 2000Curzio et al, 1986), and reduce or totally eliminate the parasitic microorganisms (Crawford and Ruff, 1996;Kilcast, 1994;CENA, 2006;Evangelista, 2000;Moy and Wong, 2002;Pezzzutti et al, 2005). Food conservation methods have been well accepted by the consumers.…”

Section: Radapertization (Industrial Sterilization)mentioning

confidence: 99%

Ionizing radiation effects on food vitamins: a review

Dionísio

Gomes

Oetterer

2009

Braz. arch. biol. technol.

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Ionizing radiation has been widely used in industrial processes, especially in the sterilization of medicals, pharmaceuticals, cosmetic products, and in food processing. Similar to other techniques of food processing, irradiation can induce certain alterations that can modify both the chemical composition and the nutritional value of foods. These changes depend on the food composition, the irradiation dose and factors such as temperature and presence or absence of oxygen in the irradiating environment. The sensitivity of vitamins to radiation is unpredictable and food vitamin losses during the irradiation are often substantial. The aim of this study was to discuss retention or loss of vitamins in several food products submitted to an irradiation process.

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Effect of γ-irradiation on the occurrence of pathogenic microorganisms and nutritive value of four principal cereal grains

Cited by 61 publications

References 10 publications

Effect of Heat Treatment and Gamma Irradiation on the Total Bacterial Count of Selected Millet Grains (Jowar, Bajra and Foxtail)

Effect of Heat Treatment and Gamma Irradiation on the Total Bacterial Count of Selected Millet Grains (Jowar, Bajra and Foxtail)

Effect of γ-irradiation on fumonisin producing Fusarium associated with animal and poultry feed mixtures

Ionizing radiation effects on food vitamins: a review

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