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Food Additives & Contaminants. Part B, Surveillance

Manolis N Tzatzarakis, Vasiliki Karzi, Elena Vakonaki, Marina Goumenou, Matthaios Kavvalakis, Polychronis Stivaktakis, Christina Tsitsimpikou, Ioannis Tsakiris, Apostolos Rizos, Aristidis M Tsatsakis
Bisphenol A is one of the most common industrial chemicals and known to exert endocrine disruption activity. The aim of this study was the quantification of BPA in food stuffs on the Greek market. The applied LC-MS (liquid chromatography mass spectrometry) method was validated for linearity, limit of quantification, accuracy, precision and recovery. 41.7% of the canned solid phase samples, 25.0 % of the canned liquid phase samples and 43.8% of the soft drinks were positive. Mean BPA concentrations (and range) were 33...
November 29, 2016: Food Additives & Contaminants. Part B, Surveillance
Aziza Hussein Bakheit Adam, Nazik Eltayeb Musa Mustafa, Ivonne M C M Rietjens
Nitrite intake from locally processed meat in Khartoum, Sudan was estimated and compared to established safety levels. For this purpose, 90 locally processed meat samples were collected randomly from retail outlets and analysed for nitrite levels according to the British standard 1992 protocol and 350 purchasers at retail outlets were questioned about their consumption pattern. Nitrite concentrations in all samples were below the Sudanese maximum limit (ML) of 100 mg kg(-1) for nitrite in meat products. Dietary exposure to nitrite for adults and children was estimated to be in the range of 0...
November 17, 2016: Food Additives & Contaminants. Part B, Surveillance
Zhenzhen Cao, Renxiang Mou, Zhaoyun Cao, Xiaoyan Lin, Ping Xu, Zhijun Chen, Zhiwei Zhu, Mingxue Chen
Nickel (Ni) concentrations in milled rice obtained from China and their variations among different provinces and varieties, as well as associated health risks were investigated. Results showed that the mean Ni concentration in milled rice was 0.49±0.51 mg/kg, which was much higher than reported in UK, French and Iranian cereals. There were significant variations (P<0.05) of Ni concentrations in milled rice among different provinces and among varieties in the same province. According to the dietary risk assessment, the mean values of the target hazard quotient (THQ) for chronic risk ranged from 1...
October 26, 2016: Food Additives & Contaminants. Part B, Surveillance
Amiri Qandashtani Roya, Mohamadi Sani Ali
Levels of the heavy metals arsenic (As), cadmium (Cd) and lead (Pb) were determined in rice samples imported from India and Pakistan and marketed in Torbat-Heidarieh, Iran. To assess the safety of dietary intake of these metals by rice, the estimated weekly intake (EWI) was calculated and compared with the provisional tolerable weekly intake (PTWI). The results indicated that mean values for Pb and cadmium in imported rice were considerably higher than the safe limit as set by FAO/WHO. EWI for cadmium and As among the consumed types of imported rice was lower than the PTWI...
October 26, 2016: Food Additives & Contaminants. Part B, Surveillance
Vladimir Tomović, Marija Jokanović, Mila Tomović, Milana Lazović, Branislav Šojić, Snežana Škaljac, Maja Ivić, Sunčica Koćić-Tanackov, Igor Tomašević, Aleksandra Martinović
Concentrations of cadmium (Cd) and lead (Pb) were determined in livers (n = 52) and kidneys (n = 52) of female cattle (345-2717 days old) from dairy farms in the region Vojvodina. Cd and Pb were analysed by inductively coupled plasma-optical emission spectrometry, after microwave digestion. Cd and Pb concentrations did not exceed the Serbian and European maximum set limits in any sample. The Cd concentrations in the livers and kidneys ranged from 0.033 to 0.151 mg kg(-1) wet weight and from 0.055 to 0...
October 18, 2016: Food Additives & Contaminants. Part B, Surveillance
Ines Jedidi, Alejandra Cruz, Maria Teresa González-Jaén, Salem Said
Occurrence of aflatoxins AFB1, AFB2, AFG1, AFG2 and ochratoxin A (OTA) was studied in 65 samples of stored and freshly harvested wheat, barley and maize collected in Tunisia. The mycotoxins were simultaneously extracted and quantified by HPLC. Determination of AF-producing (section Flavi) and OTA-producing Aspergillus species (sections Nigri and Circumdati) was conducted in these samples by species-specific PCR. Results showed that most of maize samples were contaminated with AFs, data after storage showing higher values than those collected at harvest...
October 13, 2016: Food Additives & Contaminants. Part B, Surveillance
Yarong Zhao, Jianxiang Huang, Liyan Ma, Shuai Liu, Fuhua Wang
A total of 101 samples of beer from the Chinese market were analyzed for the presence of aflatoxin B1 (AFB1) and sterigmatocystin (STC), using methods based on liquid chromatography-tandem mass spectrometry (LC-MS/MS). The limit of quantification (LOQ) and the limit of detection (LOD) in beer were 0.1µg/kg and 0.03 µg/kg, respectively. Recoveries of AFB1 and STC from spiked beer samples were 97.8 - 103.6% and 92.7 - 102.1%, respectively. None of the beer purchased samples were contaminated with AFB1 or STC...
October 13, 2016: Food Additives & Contaminants. Part B, Surveillance
Ji-Feng Yang, Li-Ming Yang, Li-Ying Zheng, Guang-Guo Ying, Cheng-Bin Liu, Sheng-Lian Luo
Concentrations of six phthalates were determined in 69 plastic bottled non-alcoholic beverages collected from marketplaces in China. Di-n-butyl phthalate (DBP) and Di- (2-ethylhexyl)-phthalate (DEHP) were the most detected compounds with frequencies of 100%. Dimethyl phthalate (DMP) was found less, with a mean frequency of almost 34%. The samples were divided in 7 groups. The frequencies of phthalates in these groups ranged from 6.67 to 100%, which indicated that different types of beverages were differently contaminated by phthalates...
October 9, 2016: Food Additives & Contaminants. Part B, Surveillance
Biljana Škrbić, Jelena Živančev, Grigorije Jovanović, Marinella Farre
About 10 heavy elements were determined in 90 samples of baby food collected from Spanish and Serbian market. The results indicated that iron, manganese and copper were most frequently detected. Tin was the predominant toxic element in both Spanish and Serbian samples, with occurrence frequencies of 12.5% and 10.0%, respectively. Element intake for Spanish and Serbian infants were estimated and compared with the recommended reference values, for the majority of elements being lower than one. However, iron and manganese intake through consumption of infant/follow-on formulas were assessed to be higher than the respective daily intakes...
October 9, 2016: Food Additives & Contaminants. Part B, Surveillance
Laura Pereira Garcia, Fernanda M L Gomes, Silvia Tfouni, Eduardo Vicente, Geovana D Savi, Karolina Santos, Vildes M Scussel
A total of 13 polycyclic aromatic hydrocarbons (PAHs) were surveyed in dry whole soybeans (Glycine max L.) sold for human consumption. The analysed samples were commercialised in vegetarian shops and food stores in Southern Brazil regions. The determination of PAHs levels was carried out by high performance liquid chromatography (HPLC)with fluorescence detection. PAHs were present in 89.7% of the samples. Chrysene (Chy) and 5 methyl chrysene (5MeChy) were the main PAHs detected (76.9% and 71.8%, respectively) followed by dibenzo(ai)pyrene (DaiP), however in a much less percentage of samples (23...
October 6, 2016: Food Additives & Contaminants. Part B, Surveillance
David Tinayeshe Maringe, Cathrine Chidewe, Mudadi Albert Benhura, Brighton Marimanzi Mvumi, Tatenda Clive Murashiki, Mavis Precious Dembedza, Lucia Siziba, Loveness Kuziwa Nyanga
Aflatoxins, mainly produced by Aspergillus flavus and Aspergillus parasiticus, are highly toxic and may lead to health problems such as liver cancer. Exposure to aflatoxins may result from ingestion of contaminated foods. Levels of AFB1, AFB2, AFG1 and AFG2 in samples of groundnuts (Arachis hypogaea), beans (Phaseolus vulgaris), cowpeas (Vigna unguiculata) and bambara nuts (Vigna subterranean) grown by smallholder farmers in Shamva and Makoni districts, Zimbabwe, were determined at harvesting, using high performance liquid chromatography after immunoaffinity clean-up...
October 4, 2016: Food Additives & Contaminants. Part B, Surveillance
Abdi Mohammed, Alemayehu Chala, Mashilla Dejene, Chemeda Fininsa, David A Hoisington, Victor S Sobolev, Renee S Arias
This study was conducted to assess major Aspergillus species and aflatoxins associated with groundnut seeds and cake in Eastern Ethiopia and evaluate growers' management practices. A total of 160 groundnut seed samples from farmers' stores and 50 groundnut cake samples from cafe and restaurants were collected. Fungal isolation was done from groundnut seed samples. Aspergillus flavus was the dominant species followed by Aspergillus parasiticus. Aflatoxin analyses of groundnut seed samples were performed using ultra performance liquid chromatography; 22...
December 2016: Food Additives & Contaminants. Part B, Surveillance
Brankica Kartalović, Nikolina J Novakov, Željko Mihaljev, Jelena Petrović, Nadežda Prica, Jelena Babić, Miroslav A Ćirković
The aim of this study was to determine the level of organochlorine (OC) pesticides in 57 samples of canned tuna and 31 samples of canned sardines in vegetable oil, collected from supermarkets in Serbia. OC pesticides α-HCH, β-HCH, δ-HCH, dichlorodiphenyltrichloroethane (DDT), DDE, DDD, dielderin, endosulfane I, endosulfane II, endosulan sulfate, endrin, endrin ketone, heptachlor, heptachlor epoxide, lindane, aldrin, metoxichlor, cis-chlordane and trans-chlordane were determined using a GS-MS method. The highest concentrations (µg kg(-1), arithmetic means) in canned tuna were for δ-HCH (60...
December 2016: Food Additives & Contaminants. Part B, Surveillance
Rofiat Abdus-Salaam, Olusegun Atanda, Francesca Fanelli, Micheal Sulyok, Giuseppe Cozzi, Simona Bavaro, Rudolf Krska, Antonio F Logrieco, Chibundu N Ezekiel, Waheed A Salami
This study reports the distribution of fungal isolates and fungal metabolites that naturally contaminate locally processed rice from five agro-ecological zones of Nigeria. The fungal species were isolated by the dilution plate technique and identified by appropriate diagnostics, while metabolites were determined by a liquid chromatographic tandem mass spectrometric method. Aspergillus and Penicillium species were the predominant isolates found in the rice samples while Fusarium spp. were not isolated. The mean fungal count differed significantly (p < 0...
December 2016: Food Additives & Contaminants. Part B, Surveillance
Helga Tima, Anita Rácz, Zsuzsanna Guld, Csilla Mohácsi-Farkas, Gabriella Kiskó
Fusarium genera can produce trichothecenes like deoxynivalenol (DON), zearalenone (ZEN) and T-2 toxin, which can occur in feed cereal grains. Enzyme-linked immunosorbent assays (ELISA) tests of different Hungarian swine feedstuff proved that these mycotoxins were present. In this survey, 45 feed samples from 3 significant Hungarian swine feedstuff manufacturers were tested. ELISA methodology validation showed mean recovery rates in ranges from 85.3% to 98.1%, with intermediate precision of 86.9-96.9% and variation coefficients of 3...
December 2016: Food Additives & Contaminants. Part B, Surveillance
Yinka Somorin, Adeyemi Akinyemi, Terenzio Bertuzzi, Amedeo Pietri
The natural co-occurrence of aflatoxins (AFs), ochratoxin A (OTA) and citrinin (CIT) in melon seed samples obtained from retailers and households in Ireland and the United Kingdom (UK) was evaluated. AFs and OTA were determined by HPLC with fluorescence detection while CIT was analysed by HPLC-MS/MS. AFB1 was detected in all (100%) samples (mean = 9.7 μg kg(-1); range = 0.2-66.5 μg kg(-1)). Mean total AFs was 12.0 μg kg(-1) (range = 0.3-82 μg kg(-1)). Commercially retailed samples showed a significantly higher AFB1 contamination (p < 0...
September 2016: Food Additives & Contaminants. Part B, Surveillance
Tareq M Osaili, Abbas F Al Jamali, Ibrahim M Makhadmeh, Mohammad Taha, Sukiena K Jarrar
Heavy metals (As, Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn) in various vegetables (cabbage, green onion, lettuce, parsley, rocket, spinach, carrot, onion, potato and cauliflower) from the market in Jordan were measured using inductively coupled plasma-mass spectrometry. As, Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn ranged from 0.009-0.275 mg kg(-1) wet weight, 0.004-0.060 mg kg(-1), 0.003-0.401 mg kg(-1), 0.105-3.51 mg kg(-1), 0.15-1.15 mg kg(-1), 0.93-14.39 mg kg(-1), 0.044-0.702 mg kg(-1), 0.072-0.289 mg kg(-1) and 2...
September 2016: Food Additives & Contaminants. Part B, Surveillance
Mami Ogimoto, Kumi Suzuki, Nahoko Haneishi, Yuu Kikuchi, Mayu Takanashi, Naoko Tomioka, Yoko Uematsu, Kimio Monma
Aluminium (Al) levels of 90 food samples were investigated. Nineteen samples contained Al levels exceeding the tolerable weekly intake (TWI) for young children [body weight (bw): 16 kg] when consuming two servings/week. These samples were purchased multiple times at specific intervals and were evaluated for Al levels. Al was detected in 27 of the 90 samples at levels ranging from 0.01 (limit of quantitation) to 1.06 mg/g. Of these, the Al intake levels in two samples (cookie and scone mix, 1.3 and 2 mg/kg bw/week, respectively) exceeded the TWI as established by European Food Safety Authority, although the level in the scone mix was equivalent to the provisional TWI (PTWI) as established by Joint Food and Agriculture Organization of the United Nations/World Health Organization Expert Committee on Food Additives...
September 2016: Food Additives & Contaminants. Part B, Surveillance
Eleni Kollia, Kyriakos Tsourouflis, Panagiota Markaki
Aflatoxin B1 (AFB1) is considered as the most potent liver carcinogen for humans. A method for determination in sesame seeds was developed. AFB1 was extracted by methanol-water, cleaned by immunoaffinity columns and determined by high-performance liquid chromatography with fluorescence detection. The recovery factor and the limit of detection (LOD) of AFB1 in sesame seeds were 111.5% and 0.02 ng g(-1), respectively. Thirty samples of sesame products were examined for the presence of AFB1. After analysis, 77...
September 2016: Food Additives & Contaminants. Part B, Surveillance
Congcong Guo, Yanxing Liu, Yan Jiang, Renjie Li, Minhao Pang, Yingchao Liu, Jingao Dong
A total of 225 maize kernel samples were collected from Shandong Province in China from 2012 to 2014 and analysed for contamination with Fusarium spp. and fumonisins (FBs) using molecular methods and high-performance liquid chromatography with fluorescence detection. The results showed that the average incidences of Fusarium spp. in 2012, 2013 and 2014 were 23.3%, 37.1% and 36.5%, respectively, Fusarium verticillioides being the predominant species. In 2012, the average contamination level of FBs was 3071 ng g(-1), which was higher than that in 2014 (2913 ng g(-1)) and 2013 (2072 ng g(-1))...
September 2016: Food Additives & Contaminants. Part B, Surveillance
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