Natural occurrence of aflatoxin B1 in sorghum grown in different geographical regions of India

2012 ◽  
Vol 92 (12) ◽  
pp. 2416-2420 ◽  
Author(s):  
Chamarthy Venkata Ratnavathi ◽  
Vadabalija Venkata Komala ◽  
Bathula Swaroop Vijay Kumar ◽  
Indra Kanta Das ◽  
Jagannath Vishnu Patil
2004 ◽  
Vol 42 (8) ◽  
pp. 1309-1314 ◽  
Author(s):  
S.A Bankole ◽  
B.M Ogunsanwo ◽  
O.O Mabekoje

2001 ◽  
Vol 17 (S2) ◽  
pp. 174-177 ◽  
Author(s):  
CT Noviandi ◽  
E Razzazi ◽  
A Agus ◽  
J Böhm ◽  
HW Hulan ◽  
...  

2006 ◽  
Vol 69 (6) ◽  
pp. 1463-1467 ◽  
Author(s):  
G. S. TOTEJA ◽  
A. MUKHERJEE ◽  
S. DIWAKAR ◽  
PADAM SINGH ◽  
B. N. SAXENA ◽  
...  

In a multicenter study conducted by the Indian Council of Medical Research, 1,646 samples of wheat grain collected from rural and urban areas of 10 states representing different geographical regions of India were analyzed for aflatoxin B1 (AFB1). AFB1 concentrations of ≥5 μg kg−1 were recorded in 40.3% of the samples, and concentrations above the Indian permissible regulatory limit of 30 μg kg−1 were found in 16% of the samples. The proportion of samples with AFB1 concentrations above the Indian regulatory limit ranged from 1.7 to 55.8% in different states, with the minimum in Haryana and the maximum in Orissa. The variation in wheat contamination among states seems to be mainly the result of unsatisfactory storage conditions. Median AFB1 concentrations of 11, 18, and 32 μg kg−1 were observed in samples from Uttar Pradesh, Assam, and Orissa, respectively; concentrations in other states were <5 μg kg−1. The maximum AFB1 concentration of 606 μg kg−1 was observed in a sample from the state of Uttar Pradesh. The calculated probable daily intakes of AFB1 through consumption of contaminated wheat for the population in some states were much higher than the suggested provisional maximum tolerable daily intake. Human health hazards associated with such AFB1 exposure over time cannot be ruled out.


2018 ◽  
Vol 34 (2) ◽  
pp. 239-249 ◽  
Author(s):  
Vesna Krnjaja ◽  
Slavica Stankovic ◽  
Milos Lukic ◽  
Nenad Micic ◽  
Tanja Petrovic ◽  
...  

This study was carried out in order to investigate the natural occurrence of toxigenic fungi and levels of zearalenone (ZEA), deoxynivalenol (DON) and aflatoxin B1 (AFB1) in the maize stored immediately after harvesting in 2016 and used for animal feed in Serbia. A total of 22 maize samples were collected from four different districts across the country: City of Belgrade (nine samples), Sumadija (eight samples), Podunavlje (four samples) and Kolubara (one sample). Toxigenic fungi were identified according to the morphological characteristics whereas the mycotoxins contamination were detected using biochemistry enzyme-linked immuno-sorbent (ELISA) assay. The tested samples were mostly infected with Aspergillus, Fusarium and Penicillium spp., except that one sample originated from Kolubara was not contaminated with Aspergillus species. Fusarium graminearum was the most common species in the maize sample from Kolubara district (60%), F. verticillioides in the maize samples from Podunavlje (43.75%) and City of Belgrade (22.4%) districts, and Penicillium spp. in the maize samples from Sumadija district (26.38%). In the analysed maize samples the presence of Aspergillus species was low (0-1.78%). Mycotoxicological analysis revealed the presence of zearalenone (ZEA), deoxynivalenol (DON) and aflatoxin B1 (AFB1) in all the investigated samples, except that DON and AFB1 were not recorded in the samples from Podunavlje and Kolubara districts, respectively. The investigated samples were highly contaminated with ZEA, with incidence of 100% for the samples from Sumadija, Podunavlje and Kolubara districts and 88.89% for the samples from City of Belgrade district. In addition, the samples contamination with DON was 100% and 22.2% for the samples from Sumadija, Kolubara and City of Belgrade, districts, respectively. The highest number of AFB1 positive samples was found in Sumadija district (87.5%), while in the City of Belgrade and Podunavlje districts, 55.56% and 50% AFB1 positive samples were established, respectively. Generally, remarkable infection of all the tested samples with toxigenic fungal species from Aspergillus, Fusarium and Penicillium genera were recorded. In addition, high contamination with mycotoxins ZEA, DON and AFB1 were also recorded; nevertheless, only in one sample the level of DON exceeded the allowed legal limit (1750 ?g kg-1) according to Regulation for unprocessed maize. Therefore, permanent mycological and mycotoxicological analyses of maize grain are necessary for risk assessment of fungal and mycotoxin contamination throughout the food chain.


2018 ◽  
Vol 61 ◽  
pp. 61-66 ◽  
Author(s):  
Seyedeh Faezeh Taghizadeh ◽  
Ramin Rezaee ◽  
Gholamhossein Davarynejad ◽  
Javad Asili ◽  
Seyed Hossein Nemati ◽  
...  

2019 ◽  
Vol 16 (1) ◽  
pp. 167-178
Author(s):  
A.M. Moharram ◽  
M.M. Yasser ◽  
M.A. Sayed ◽  
O.A. Omar ◽  
M.M.M. Idres

The mycological analysis of 51 samples of rice grains collected from different localities in El-Minia Governorate revealed the isolation of 54 species of fungi belonging to 21 genera. Most common mycobiota (genera) were Aspergillus and Penicillium being isolated from 96.07% and 54.9% of samples contributing 63.08% and 21.89% of total fungal counts. The prevalent species were represented by Aspergillus flavus, A. candidus, A. niger, Penicillium chrysogenum, P. islandicum especially on Dichloran Rose Bengal Chloramphenicol Agar medium (DRBC). These species in addition to some osmophilic fungi including A. chevalieri, A. montevidensis, A. rubrum were also common when Dichloran Glycerol agar (DG18) was used for the culturing of rice samples. About 12.5% of samples analysed for natural occurrence of mycotoxins were contaminated either with Aflatoxin – B1 (100-200 µg/ kg), ochratoxin –A (50-100 µg/ kg) or sterigmatocystin (10-20 µg/ kg). The majority of fungal strains tested for their mycotoxin production in liquid cultures were able to produce variable levels of aflatoxin B1, Aflatoxin G1 , Ochratoxin –A , terrein , gliotoxin and fumagillin


Food Control ◽  
2013 ◽  
Vol 34 (2) ◽  
pp. 404-407 ◽  
Author(s):  
Shahzad Zafar Iqbal ◽  
Muhammad Rafique Asi ◽  
S. Jinap

Food Control ◽  
2013 ◽  
Vol 34 (2) ◽  
pp. 312-317 ◽  
Author(s):  
Ksenija Markov ◽  
Jelka Pleadin ◽  
Martina Bevardi ◽  
Nada Vahčić ◽  
Darja Sokolić-Mihalak ◽  
...  

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