Moulds Associated With Milk Depending on Macroclimate and Geographical Location

Pešić-Mikulec, Dragana

doi:10.15666/aeer/0302_061065

Cited by 7 publications

(3 citation statements)

References 5 publications

(5 reference statements)

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“…The mycotoxins are natural contaminants of foods and feeds even when the most efficient condition of culture, harvest, storage and handling are used. The prevalence of these toxins in feed samples varies depending on geographical location and season of the year and the specific qualities of climate, vegetation and land are the important factors in connection with certain geographical location the air with the wind or in combination of wind and rain (Mikulec et al, 2005).…”

Section: Resultsmentioning

confidence: 99%

Efficacy of Zinc Oxide Nanoparticles and Curcumin in Amelioration the Toxic Effects in Aflatoxicated Rabbits

Atef¹,

Mansour²,

Ibrahim³

et al. 2016

Int.J.Curr.Microbiol.App.Sci.

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As the first step in this direction; biosynthesis and characterization of zinc oxide nanoparticles (ZnO-NPs) and their use to ameliorate the toxic effects of aflatoxicosis in rabbit in comparison with curcumin were studied. Thirty-five healthy New Zealand rabbits were divided into 5 groups, each including 7 rabbits. Group 1 was kept as negative control without any treatment. Rabbits in the groups 2, 3, 4 and 5 were given AFB 1 orally at a dose of 50 ug dissolved in 0.5 ml of olive oil/ animal daily, for 4 weeks. On day one following the administration of AFB 1 , curcumin was orally administered at a dose of 15 mg/kg b.w. for group 3. While, animals of Group 4, were orally administered AFB1 + ZnO-NPs (25 ug / kg of B.W. of animal /0.2 mL of buffer/day)( low dose). Animals of Group 5, were orally administered aflatoxins + ZnO-NPs (50 ug / kg of B.W. of animal /0.2 mL of buffer/day) ( high dose). The biochemical evaluation of rabbit sera after experimental study showed that AFB 1 increased the concentration of NO and MDA, while decreased the level of GSH and activities of SOD, CAT and GSH-P X . Significant decreased values in plasma total protein, albumin, alpha globulin, beta globulin, and gamma globulin. Decrease in serum globulin in toxin fed group might be due to the adverse effect of aflatoxin B 1 on synthesis of total proteins and globulin. The AFB 1 had a drastic effect on liver and kidneys with marked genotoxic effect and inhibition of DNA, RNA and protein synthesis. These changes were improved by administration of ZnO-NPs or curcumin to aflatoxicated animal through the immune strengthening effect and protection of lipid and protein from oxidative damage. It is concluded that the addition of ZnO-NPs and curcumin to animal feed possesses hepato-protective effect through scavenging of free radicals, or by enhancing the activity of antioxidant, which then detoxify the free radicals. These factors protect hepatic cells from the damaging effect by AFB 1 that could be progress to hepatocarcinmoa.

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Section: Resultsmentioning

confidence: 99%

Efficacy of Zinc Oxide Nanoparticles and Curcumin in Amelioration the Toxic Effects in Aflatoxicated Rabbits

Atef¹,

Mansour²,

Ibrahim³

et al. 2016

Int.J.Curr.Microbiol.App.Sci.

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“…These genera, together with Geotrichum , have been commonly isolated from milk (Pešić‐Mikulec et al . ; Godič Torkar and Vengušt ; Delavenne et al . ; Lavoie et al .…”

Section: Resultsmentioning

confidence: 99%

Occurrence of moulds associated with ovine raw milk and cheeses of the Spanish region of Castilla La Mancha

Marín

Llamas

Jurado

2015

Int J of Dairy Tech

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The distribution of mould species was examined at several points of the processing chain in a Manchego cheese plant and associated dairy farms. Geotrichum and Fusarium were the genera most frequently isolated from milk samples as well as in cheeses ripened for one month, evidencing a direct transfer from raw milk. Conversely, the mycobiota of long-ripened cheeses consisted mainly of Penicillium species, which gained entry to the cheese through the air of ripening rooms. This study contributes to the understanding of the dynamics of fungal populations in semihard and hard cheeses, highlighting that airborne transfer from the stables could have a direct impact on their quality.

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“…During an extended study of 297 milk samples encompassing 4 geographic re-gions in the Republic of Serbia, a high prevalence of moulds was established (with respective values of 91.3% in the fall and 46.64% in the winter), with the predominant species being of the Penicillium genus (69.3%) during the spring, the Geotrichum genus (27.0%) during the fall, and the Aspergillus genus (20.9%) during the winter (Pesic-Mikulec et al, 2005). A similar study in Libya reported that 80% of the raw milk samples were contaminated with moulds, with an average quantity of 4.3×10 5 cfu/mL, whereas 50% of ready yogurt batches were contaminated at 2.1×10 4 cfu/mL, with predominant species of the Aspergillus, Penicillium, Cladosporium, Mucor and Geotrichum genera (El-Diasty & El-Kaseh, 2009).…”

Section: Introductionmentioning

confidence: 99%

Study on the prevalence of lipolytic yeasts and moulds in raw cow milk and white brined cheese

Chipilev¹,

Daskalov²,

Stoyanchev³

2016

BJVM

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The extent of microbial contamination with moulds and yeasts of raw cow milk and white brined cheese produced in Bulgarian dairy enterprises was evaluated. The isolation and identification of microorganisms was performed using the classical microbiological methods. The samples of raw milk showed 76.6% contamination with moulds, at average amount of 3.4 log 10 cfu/mL, maximum of 4.8 log 10 cfu/mL. Yeasts were detected in 93.3% of the samples (average 3.5 log 10 cfu/mL). Isolated moulds belonged to the genera Aspergillus (37.9%), Geotrichum (29.3%), Mucor (15.5%), Cladosporium (5.2%) and Penicillium (12.1%). Overall, 70% of studied samples were found to be contaminated with yeasts and moulds at 2.2 log 10 cfu/g and 2.8 log 10 cfu/g, respectively. Most commonly, isolates from white brined cheese were from the genera Geotrichum (32.8%), Aspergillus (28.1%), Mucor (21.8%) and Penicillium (9.4%). The predominating yeasts in raw cow milk and white brined cheese were Candida spp., Rhodotorula spp. and Sacharomyces spp. Isolates were tested for lipolytic activity on Tributyrin agar. The occurrence of lipolytic and toxigenic moulds and yeasts poses a risk for the quality and safety of milk and dairy products.

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Moulds Associated With Milk Depending on Macroclimate and Geographical Location

Cited by 7 publications

References 5 publications

Efficacy of Zinc Oxide Nanoparticles and Curcumin in Amelioration the Toxic Effects in Aflatoxicated Rabbits

Efficacy of Zinc Oxide Nanoparticles and Curcumin in Amelioration the Toxic Effects in Aflatoxicated Rabbits

Occurrence of moulds associated with ovine raw milk and cheeses of the Spanish region of Castilla La Mancha

Study on the prevalence of lipolytic yeasts and moulds in raw cow milk and white brined cheese

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