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Registros recuperados: 33 | |
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OZTURKOGLU-BUDAK,Sebnem. |
Abstract Hazard analysis and critical control points (HACCP) is a process control system describes the potential hazards during food production flow chart. In contrast to the conventional way of ensuring product safety by end-product testing, HACCP establishes control systems, focuses mainly on preventive measures. Quality of red dried chili pepper (RDCP) should be assured by taking special care from harvesting of the peppers to retailing of the packaged product. RDCP is susceptible to fungi growth and mycotoxin contamination depending on the atmospheric and processing conditions such as humidity, temperature, storage and drying. Mycotoxins, are toxic metabolites to human health and strict control measures are required for preventing their occurrence in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dry chili pepper; HACCP; Aflatoxin. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000500024 |
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Vaccari,Isabel Cristina Mores; Duarte,Vinicius; Rodrigues,Denise Russi; Santos,Fabiana Ramos dos; Minafra,Cibele Silva. |
Abstract: The objective of this work was to determine the correlation of the physical attributes of corn and the mycotoxins present in its grains with the severity of tongue lesions in broiler breeder roosters. The occurrence of the aflatoxin, vomitoxin, zearalenone, T-2 toxin, and fumonisin mycotoxins was detected in the corn grains used in the feed formulation for breeder chickens. The percentages of moisture and broken grains were positively correlated (Pearson’s correlation) with the presence of aflatoxin. Milder lesions (grade 1) are positively correlated with aflatoxin and negatively correlated with fumonisin, and the most severe lesions (grade 3) are positively correlated with vomitoxin, fumonisin, and T-2 toxin. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Aviculture; Fumonisin; Mycotoxin; T-2 toxin; Vomitoxin.. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000942 |
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Scussel,V. M.. |
Milk and egg matrixes were assayed for aflatoxin M1 (AFM1) and B1 (AFB1) respectively, by AOAC official and modified methods with detection and quantification by thin layer chromatography (TLC) and high performance thin layer chromatography (HPTLC). The modified methods: Blanc followed by Romer, showed to be most appropriate for AFM1 analysis in milk. Both methods reduced emulsion formation, produced cleaner extracts, no streaking spots, precision and accuracy improved, especially when quantification was performed by HPTLC. The use of ternary mixture in the Blanc Method was advantageous as the solvent could extract AFM1 directly from the first stage (extraction), leaving other compounds in the binary mixture layer, avoiding emulsion formation, thus... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; AFM1; AFB1; TLC; HPTLC; Milk; Egg. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612003000400009 |
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Gloria,Eduardo Micotti da; Ciacco,César Francisco; Lopes Filho,José Francisco; Ericsson,Cynthia; Zocchi,Silvio Sandoval. |
The distribution of the aflatoxin contamination was studied among four maize fractions, separated according to Brazilian grading rules for maize. The fraction that contained fermented, moldy, heated and sprouted grains normally had the highest levels of aflatoxin. However, the fraction contribution to the whole sample contamination level took into account the contamination fraction level and its weight to the whole sample. Considering this, the fraction that contained insect damaged, hollow, up to ¼ fermented and grains damaged by other causes was normally the fraction responsible for the total contamination level in the samples. Nevertheless, the fraction contributions were variable from sample to sample. Therefore, in conclusion, it was not possible to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Contamination; Distribution; Grain type; Maize. |
Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612004000100014 |
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Piedade,Fabiana S.; Fonseca,Homero; Glória,Eduardo M.; Calori-Domingues,Antonia; Piedade,Sônia M.S.; Barbin,Décio. |
The efficiency of segregation, by particle size, in reducing the aflatoxin content of corn lots under the Brazilian conditions was studied. The aflatoxin content, in the corn fractions obtained after sieving thirty contaminated samples, with approximately 3.0 kg each, was determined. The samples were passed through 4.5 mm round-hole sieves and the fractions with particles ³4.5 mm (fraction A) and <4.5 mm (fraction B) and then analyzed for aflatoxins by TLC. The results showed that the distribution of the aflatoxins among the fractions A and B varied from sample to sample. However, the fraction B presented higher content (6 to 1,422 µg/kg) of aflatoxins (P<5%), than samples of fraction A (4 to 389 µg/kg). In spite of that the segregation of this... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Corn; Contamination distribution; Segregation; Fractions. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100002 |
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TURAN,Ali; KARAOSMANOĞLU,Hasan. |
Abstract This research was conducted to determine the chemical traits of Ordu Levant hazelnuts that were dried with sun–drying [on concrete ground (CG), grass ground (GG)], or in drying machine (DM) during 24 months of storage (2014-2016) at 20-25 °C and 70-90% relative humidity. Drying process continued 39 h for CG and GG, and 23 h for DM. Sun–drying were performed in similar sunshine and environmental conditions. Nut quality traits in protein, lipid, moisture contents, water activity, free fatty acids (FFA), peroxide value (PV), rancimat value (RV), and amount of aflatoxin were investigated during storage. The lowest FFA (0.35%, oleic acid) was recorded for GG, and the lowest PV (0.35 meqO2 kg–1 ) was recorded for CG. In addition, DM method contained... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Concrete ground; Drying machine; Free fatty acid; Peroxide value; Rancimat value. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600406 |
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Silva,Janaina Lara da; Aparecido,Christiane Ceriani; Hansen,Daiane; Pereira,Tacila Alves Muniz; Felicio,Joana D'arc; Gonçalez,Edlayne. |
Some species of filamentous fungi that infest agricultural commodities are able to produce mycotoxins, contaminating feed and animal products. The aim of this research was to identify the mycoflora present in the feed and forage for dairy goat and to isolate and characterize the Aspergillus flavusand A. parasiticusstrains based on a morphological and molecular characterization and mycotoxigenic ability. The goat dairy diets were collected monthly from 11 goat milk farms, totaling 129 and 106 samples of concentrate and forage, respectively. For the isolation of the mycobiota the surface plating method was used. Aspergillus, Penicillium,and Fusariumwere the main fungi producing mycotoxins isolated. The morphological and molecular characterization and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toxigenic fungi; Aflatoxin; Cyclopiazonic acid; Feed; Molecular characterization.. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000801466 |
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Pak,Adriana; Gonçalez,Edlayne; Felicio,Joana D'arc; Pinto,Marina Mori; Rossi,Maria Helena; Simoni,Isabela Cristina; Lopes,Márcia Nasser. |
Polymnia sonchifolia, commonly known as ";yacon";, was originally cultivated at Andes moutains in South America. Recently, the specie attracted worldwide attention because of its wide range of uses, for example in the control of diabetes melitus, besides the antifungal and pesticidal compounds were found in the leaves. This study describes the identification of two flavonoids: 3', 5, 7 trihydroxy-3, 4'-dimethoxyflavone (compound 1) and 3', 4', 5- trihydroxy-7-methoxy flavanone (compound 2) and two sesquiterpenes lactones: enhydrin (compound 3) and a mixture of enhydrin and uvedalin (compound 4) isolated from Polymnia sonchifolia leaves and their effects on the aflatoxin production by Aspergillus flavus. The identification of the compounds were achieved by... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polymnia sonchifolia; Flavonoids; Melampolides; Aflatoxin; Aspergillus flavus. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200018 |
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Singh,Diwakar; Radhakrishnan,T.; Kumar,Vinod; Bagwan,N.B.; Basu,M.S.; Dobaria,J.R.; Mishra,Gyan P.; Chanda,S.V.. |
Aflatoxin contamination of peanut, due to infection by Aspergillus flavus, is a major problem of rain-fed agriculture in India. In the present study, molecular characterisation of 187 Aspergillus flavus isolates, which were sampled from the peanut fields of Gujarat state in India, was performed using AFLP markers. On a pooled cluster analysis, the markers could successfully discriminate among the ‘A’, ‘B’ and ‘G’ group A. flavus isolates. PCoA analysis also showed equivalent results to the cluster analysis. Most of the isolates from one district could be clustered together, which indicated genetic similarity among the isolates. Further, a lot of genetic variability was observed within a district and within a group. The results of AMOVA test revealed that... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; AMOVA; ELISA; Genetic diversity; Groundnut; PCA. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300673 |
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LIMA,Carlos A. P.; ORSI,Reinaldo B.; DILKIN,Paulo; CORRÊA,Benedito. |
Thirty samples of rough rice stored for 6, 12 and 24 months in government authorized warehouses of the state of Rio Grande do Sul, Brazil, were simultaneously collected. After milling of the product, 90 samples (30 of polished rice, 30 of rice bran and 30 of rice hull) were evaluated for their mycoflora, aflatoxigenic species and aflatoxin contamination. The following fungi, listed in decreasing order of frequency, were isolated on Potato-Dextrose Agar: Aspergillus spp., Nigrospora spp., Penicillium spp.; Fusarium spp.; Mucor spp.; Cladosporium spp.; Trichosporon spp. and non-sporulated fungi. The degree of fungal contamination (colony forming units per gram of product) was lowest in polished rice, increasing progressively in samples of rice bran and rice... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Aspergillus flavus; Mycoflora; Milled rice; Stored rice. |
Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612000000100008 |
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Tripathi,Smita; Mishra,H.N.. |
Quantitative losses in various biochemical constituents like capsaicin, carotenes, ascorbic acid, polyphenols, mineral matter, sugars (soluble and insoluble), protein and fat were estimated after the successful growth of Aspergillus flavus for 30 days on powdered red pepper. The fungal biomass was measured by ergosterol content and Aflatoxin B1 by HPLC. Amongst the various nutritional constituents evaluated for nutritional losses and changes the highest nutritional loss was reported in total carotenoids (88.55%) followed by total sugars (85.5%). The protein content of the infected sample increased from 18.01% to 23%. The nutritional profile of chilli powder (Capsicum annum var. sannam L.) shows highest share of total soluble sugars (32.89%) and fiber... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aspergillus flavus; Chili powder; Nutritional changes; Aflatoxin. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000100024 |
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Huerta-Treviño,Alejandra; Dávila-Aviña,Jorge E.; Sánchez,Eduardo; Heredia,Norma; García,Santos. |
Abstract Mycotoxins are secondary metabolites produced by specific filamentous fungi that are common contaminants of agricultural commodities. These compounds are toxic to humans and animals, and they are a health problem worldwide. Mycotoxin-containing feeds can cause serious diseases in farm animals and substantial economic losses. Therefore, the objective of this study was to determine the occurrence and levels of six mycotoxins in three types of forage at retail in the state of Nuevo León, México. The hypothesis was that all types of forages were contaminated with at least one of the six mycotoxins analyzed. One hundred and twenty samples of alfalfa (Medicago sativa L.), sorghum [Sorghum bicolor (L.) Moench], and grass (Cenchrus ciliaris L.) used for... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycotoxins; Forages; Aflatoxin; Fumonisin; Ochratoxin. |
Ano: 2016 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952016000700825 |
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Registros recuperados: 33 | |
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