Aflatoxin M1 in UHT milk consumed in Turkey and first assessment of its bioaccessibility using an in vitro digestion model

Kabak, Bülent; Özbey, Fatih

doi:10.1016/j.foodcont.2012.05.029

Cited by 61 publications

(29 citation statements)

References 31 publications

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“…Picinin et al (2013) It is known that aflatoxins are heat treatment stable (Assem et al, 2011;Prandini et al, 2009;Shundo et al, 2009). Studies carried out in Brazil (Scaglioni et al, 2014) and other countries (Farah Nadira et al, 2017;Armorini et al, 2016;Bellio et al, 2016;Zheng et al, 2013;Kabak & Özbey, 2012) prove that even in pasteurized or ultrapasteurized milk, aflatoxin M 1 is found at levels often higher than the allowed maximum limit established by national regulations (Becker-Algeri et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

Incidence of aflatoxin M1 in fresh milk from small farms

et al. 2017

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The objective of this work was to determine aflatoxin M 1 in fresh milk from fifty-two small farms in the city of Concórdia -SC, Brazil. Samples from the cooling tanks of each property were collected from November 2014 to January 2015. The QuEChERS method was used for the extraction of aflatoxin M 1 , and quantification was performed in UHPLC-FL. 40.4% of the analyzed samples (eg, 21 samples) showed contamination levels by aflatoxin M 1 above the maximum limit allowed by the Brazilian regulation, which is 0.5 μg L -1. These results suggest the importance of implementing Good Practices in obtaining feed for dairy cows, since the contamination of milk by aflatoxin M 1 occurs through the biotransformation of aflatoxin B 1 , after the ingestion of feed or silage contaminated by the animals, posing risk to the animals themselves, as well as to consumers of milk and dairy products. Keywords: aflatoxins; QuEChERS; UHPLC-FL.Practical Application: Contamination by aflatoxin M 1 of the evaluated fresh milk was high.

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Section: Resultsmentioning

confidence: 99%

Incidence of aflatoxin M1 in fresh milk from small farms

et al. 2017

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“…To simulate gastrointestinal conditions, the methodology reported by Kabak and Ozbey (2012) was used with some modifications. First, MRS broth (45 mL) were inoculated with 1% fresh culture and incubated for 18 h at 37°C.…”

Section: Cla Production In Simulated Gastrointestinal Conditionsmentioning

confidence: 99%

Screening of Lactobacillus strains for their ability to produce conjugated linoleic acid in milk and to adhere to the intestinal tract

Sosa-Castañeda

Hérnández-Mendoza

Astiazarán-García

et al. 2015

Journal of Dairy Science

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Conjugated linoleic acid (CLA) has been shown to provide beneficial effects on health; however, the amount consumed in food is far from that required for the desired effects. Thus, increasing the CLA content in dairy foods through milk fermentation with specific lactic acid bacteria (LAB) offers an interesting alternative. Moreover, some LAB may be able to adhere to the intestinal mucosa and produce CLA through endogenous synthesis. Therefore, the objective of this study was to screen LAB isolates for their ability to produce CLA in skim milk and in simulated gastrointestinal conditions. Additionally, the ability of selected CLA-producing LAB to adhere to the intestinal mucosa in a murine model was assessed. Results showed that of 13 strains of Lactobacillus tested, only 4 were able to produce CLA in skim milk supplemented with linoleic acid (13.44 ± 0.78 to 50.9 ± 0.26 µg/mL). Furthermore, these 4 Lactobacillus strains were able to survive and produce CLA in simulated gastrointestinal conditions and to adhere to the intestinal mucosa of Wistar rats after 7 d of oral inoculation with fluorescently labeled bacteria. Accordingly, these 4 Lactobacillus strains may be used to manufacture fermented dairy foods to increase CLA content, and consumption of these fermented milks may result in CLA produced endogenously by these LAB.

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“…Numerous studies on AFM 1 occurrence in milk samples from France (Boudra, Barnouin, Dragacci & Morgavi, 2007), Portugal (Duarte et al, 2013), Spain (Cano-Sancho, Martin, Ramos, Peris-Vicente & Sanchis, 2010), Greece (Mallisova et al, 2013) and Turkey (Kabak & Ozbey, 2012;Unusan, 2006) have reported the aflatoxin contamination.…”

Section: Introductionmentioning

confidence: 99%