Food Additives & Contaminants最新文献_第4页

Determination of total arsenic, inorganic and organic arsenic species in wine 葡萄酒中总砷、无机砷和有机砷的测定

Food Additives & Contaminants Pub Date : 2002-06-01 DOI: 10.1080/02652030110113762

C. Herce-Pagliai, I. Moreno, G. González, M. Repetto, A. Cameán

{"title":"Determination of total arsenic, inorganic and organic arsenic species in wine","authors":"C. Herce-Pagliai, I. Moreno, G. González, M. Repetto, A. Cameán","doi":"10.1080/02652030110113762","DOIUrl":"https://doi.org/10.1080/02652030110113762","url":null,"abstract":"Forty-five wine samples from the south of Spain of different alcoholic strength were analysed for total arsenic and its inorganic [As(III), As(V)] and organic (monomethylarsonic acid [MMAA], dimethylarsinic acid [DMAA]) species. The As levels of the wine samples ranged from 2.1 to 14.6 µg l-1. The possible effect of the alcoholic fermentation process on the levels of the total arsenic and arsenical species was studied. The average total arsenic levels for the different samples were very similar, without significant differences between all types of wines. In table wines and sherry, the percentages of total inorganic arsenic were 18.6 and 15.6%, with DMAA or MMAA being the predominant species, respectively. In most samples, DMAA was the most abundant species, but the total inorganic aresenic fraction was considerable, representing 25.4% of the total concentration of the element. The estimated daily intakes of total arsenic and total inorganic arsenic for average Spanish consumers were 0.78 and 0.15 µg/person day-1, respectively. The results suggest that the consumption of these types of wines makes no significant contribution to the total and inorganic arsenic intake for normal drinkers. However, wine consumption contributes a higher arsenic intake than through consumption of beers and sherry brandies.","PeriodicalId":12310,"journal":{"name":"Food Additives & Contaminants","volume":"12 1","pages":"542 - 546"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81565654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 42

Tailoring fatty food simulants made from solvent mixtures (2): determining the equivalent migration behaviour of olive oil and of solvents in the case of polyolefins 裁剪由溶剂混合物制成的高脂肪食品模拟物(2):确定橄榄油和聚烯烃溶剂的等效迁移行为

Food Additives & Contaminants Pub Date : 2002-06-01 DOI: 10.1080/02652030110105194

A. Riquet, D. Scholler, A. Feigenbaum

引用次数: 7

Contaminants in organic and conventional foodstuffs in France 法国有机食品和常规食品中的污染物

Food Additives & Contaminants Pub Date : 2002-06-01 DOI: 10.1080/02652030210123878

L. Malmauret, D. Parent-Massin, J. Hardy, P. Verger

引用次数: 175

Contribution of cattle products to dietary intake of trace and toxic elements in Galicia, Spain 牛产品对西班牙加利西亚微量和有毒元素膳食摄入量的贡献

Food Additives & Contaminants Pub Date : 2002-06-01 DOI: 10.1080/02652030110113744

M. L. Alonso, J. Benedito, M. Miranda, C. Castillo, J. Hernández, R. Shore

引用次数: 36

Pesticide residues in conventional, integrated pest management (IPM)-grown and organic foods: insights from three US data sets 传统、综合病虫害管理(IPM)种植和有机食品中的农药残留:来自三个美国数据集的见解

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110113799

B. Baker, C. Benbrook, E. Iii, K. Benbrook

{"title":"Pesticide residues in conventional, integrated pest management (IPM)-grown and organic foods: insights from three US data sets","authors":"B. Baker, C. Benbrook, E. Iii, K. Benbrook","doi":"10.1080/02652030110113799","DOIUrl":"https://doi.org/10.1080/02652030110113799","url":null,"abstract":"An analysis of pesticide residue data was performed to describe and quantify differences between organically grown and non-organic fresh fruits and vegetables. Data on residues in foods from three different market categories (conventionally grown, integrated pest management (IPM)-grown/no detectable residues (NDR), and organically grown) were compared using data from three test programmes: The Pesticide Data Program of the US Department of Agriculture; the Marketplace Surveillance Program of the California Department of Pesticide Regulation; and private tests by the Consumers Union, an independent testing organization. Organically grown foods consistently had about one-third as many residues as conventionally grown foods, and about one-half as many residues as found in IPM/NDR samples. Conventionally grown and IPM/NDR samples were also far more likely to contain multiple pesticide residues than were organically grown samples. Comparison of specific residues on specific crops found that residue concentrations in organic samples were consistently lower than in the other two categories, across all three data sets. The IPM/NDR category, based on data from two of the test programmes, had residues higher than those in organic samples but lower than those in conventionally grown foods.","PeriodicalId":12310,"journal":{"name":"Food Additives & Contaminants","volume":"20 1","pages":"427 - 446"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87295096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 349

On ochratoxin A and fungal flora in Polish cereals from conventional and ecological farms - Part 1: Occurrence of ochratoxin A and fungi in cereals in 1997 波兰传统农场和生态农场谷物中的赭曲霉毒素A和真菌菌群——第一部分:1997年谷物中赭曲霉毒素A和真菌的发生

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110113726

L. Czerwiecki, D. Czajkowska, A. Witkowska-Gwiazdowska

{"title":"On ochratoxin A and fungal flora in Polish cereals from conventional and ecological farms - Part 1: Occurrence of ochratoxin A and fungi in cereals in 1997","authors":"L. Czerwiecki, D. Czajkowska, A. Witkowska-Gwiazdowska","doi":"10.1080/02652030110113726","DOIUrl":"https://doi.org/10.1080/02652030110113726","url":null,"abstract":"Over 200 samples of Polish cereal grain from the 1997 harvest obtained from conventional and ecological farms were tested for the presence of ochratoxin A as well as for contamination by microscopic fungi. Ochratoxin A contamination of rye from ecological farms was over six times more frequent than that from conventional cultivation. The ochratoxin A content in wheat and barley samples from ecological farms was also higher. No wheat sample from conventional farms contained the mycotoxin. In the group of ecological farms, there were differences in the percentage of cereal samples containing ochratoxin A. The ochratoxin A levels ranged from 0.2 to 57 µg kg−1. The mean concentration of ochratoxin A in investigated cereal grain was 5.7 µg kg−1. From samples containing detectable amounts of ochratoxin A, fungi producing ochratoxin A under laboratory conditions were isolated. They were classified as belonging to the species Penicillium cyclopium, P. viridicatum, P. chrysogenum and also Aspergillus alliaceus, A. versicolor, A. glaucus and A. flavus. Penicillium strains—producers of ochratoxin A—were isolated from 93% of the samples; in 7% of samples, only Aspergillus strains producing this mycotoxin were noted. Rye samples mainly from one farm with an ecological type of cultivation and from one conventional farm were contaminated with both Aspergillus and Penicillium mycotoxigenic strains.","PeriodicalId":12310,"journal":{"name":"Food Additives & Contaminants","volume":"48 1","pages":"470 - 477"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85588612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 83

Distribution of fumonisins in dry-milled corn fractions in Argentina 阿根廷干磨玉米中伏马菌素的分布

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110103484

L. Broggi, S. Resnik, A. Pacin, H. González, Gaspar Cano, D. Taglieri

引用次数: 51

Migration of monomers from liquid crystalline poly(p-hydroxybenzoic acid-co-2-hydroxy-6-naphthoic acid) 单体从液晶聚对羟基苯甲酸-co-2-羟基-6-环烷酸迁移的研究

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110101503

G. Flodberg, L. Höjvall, M. Hedenqvist, U. Gedde

引用次数: 2

Methylarsonic and dimethylarsinic acids toxicity and total arsenic accumulation in edible bush beans, Phaseolus vulgaris 食用豆中甲基larsonic和二甲基larsinic酸的毒性和总砷积累

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110101828

Y. Lario, F. Burló, P. Aracil, D. Martínez-Romero, S. Castillo, D. Valero, Á. Carbonell-Barrachina

{"title":"Methylarsonic and dimethylarsinic acids toxicity and total arsenic accumulation in edible bush beans, Phaseolus vulgaris","authors":"Y. Lario, F. Burló, P. Aracil, D. Martínez-Romero, S. Castillo, D. Valero, Á. Carbonell-Barrachina","doi":"10.1080/02652030110101828","DOIUrl":"https://doi.org/10.1080/02652030110101828","url":null,"abstract":"The main objective was to evaluate whether arsenic accumulated in the edible pods and seeds of Phaseolus vulgaris, cv. F15 above the Spanish maximum recommended concentration for food crops, 1 mg kg−1 on a fresh weight basis. Only organic arsenicals, methylarsonic and dimethylarsinic acids were used because they were: (1) the only arsenic species allowed for agricultural applications and (2) more mobile than inorganic species. Selection of French beans, a sensitive plant to arsenic, was based on the fact that arsenic-upward translocation is higher in sensitive than in tolerant plants. A 2 x 3 factorial experiment was conducted with two organic arsenic species (methylarsonic acid, dimethylarsinic acid) and three arsenic concentrations (0.2, 0.5, 1.0 mg l-1). Experimental results showed that the low bean plant tolerance to arsenic was possibly due to the high arsenic-upward transport to shoots, which could result in profound negative metabolic consequences. Even under extreme adverse conditions, arsenic residues in edible beans were below the maximum statutory limit set by the Spanish legislation. It is concluded that the major drawback of organic arsenical herbicides is that of decreased productivity rather than high arsenic intake by consumers of edible products from sensitive plant species.","PeriodicalId":12310,"journal":{"name":"Food Additives & Contaminants","volume":"33 1","pages":"417 - 426"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88300096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Improved sample extraction and clean-up for the GC-MS determination of BADGE and BFDGE in vegetable oil 改进了气相色谱-质谱法测定植物油中BADGE和BFDGE的样品提取和清理方法

Food Additives & Contaminants Pub Date : 2002-05-01 DOI: 10.1080/02652030110088293

C. Brede, I. Skjevrak, H. Herikstad, E. Anensen, R. Austvoll, T. Hemmingsen

{"title":"Improved sample extraction and clean-up for the GC-MS determination of BADGE and BFDGE in vegetable oil","authors":"C. Brede, I. Skjevrak, H. Herikstad, E. Anensen, R. Austvoll, T. Hemmingsen","doi":"10.1080/02652030110088293","DOIUrl":"https://doi.org/10.1080/02652030110088293","url":null,"abstract":"A straightforward method was established for the determination of migration contaminants in olive oil with a special focus on the two can-coating migration compounds bisphenol A diglycidyl ether (BADGE) and bisphenol F diglycidyl ether (BFDGE). The preferred sample preparation was a single liquid-liquid extraction of compounds from the oil into 20% (v/v) methanol in acetonitrile, followed by clean-up with solid-phase extraction on aminopropyl bonded to silica. This purification procedure selectively removed all free fatty acids from the extracts without removing phenolic compounds of interest. The solid-phase extraction columns were used many times by implementing a procedure of washing out the strongly retained fatty acids with 2% acetic acid in methanol. Gas chromatography coupled with full scan (m/z 33-700) electron ionization mass spectrometry was used for the determination of several model compounds in olive oil samples. BADGE and BFDGE could be determined in the 0.05-2 mg kg−1 range in oil samples with a relative SD of <6% (six replicates). The method was used in an enforcement campaign for the Norwegian Food Control Authority to analyse vegetable oil samples from canned fish-in-oil.","PeriodicalId":12310,"journal":{"name":"Food Additives & Contaminants","volume":"28 1","pages":"483 - 491"},"PeriodicalIF":0.0,"publicationDate":"2002-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82156910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22