南非德班超市与优质品牌颗粒狗粮霉菌毒素污染的比较分析

A comparative analysis of mycotoxin contamination of supermarket and premium brand pelleted dog food in Durban, South Africa

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中文摘要:通过超市、宠物店(标准品牌(SBs))及兽医渠道(优质品牌(PBs))采集南非市售的干颗粒狗粮。结合本研究目的,超市渠道包括廉价狗粮而PBs通过兽医渠道售卖(n = 20)。用标准清楚的过程提取、表征和定量分析样品中四种主要的霉菌毒素(黄曲霉毒素(AF)、伏马菌素(FB)、赭曲霉素A(OTA)及玉米赤霉烯酮(ZEA))。研究表明高价狗粮不保证质量上乘或免受真菌或霉菌毒素的污染。但对高价PBs的分析显示其污染物浓度确实比SBs更低。
外文摘要:Dry pelleted dog food in the South African market is available via supermarkets, pet stores (standard brands [SBs]) and veterinary channels (premium brands [PBs]). For the purpose of this study, the supermarket channel included the cheaper quality foods and PBs were sold via the veterinary channel (n = 20). These feeds were analysed for four main mycotoxins (aflatoxins [AF], fumonisin [FB], ochratoxin A [OTA] and zearalenone [ZEA]) using standard welldescribed extraction, characterisation and quantitation processes. Irrespective of the brand or marketing channel, all foods were contaminated with fungi (mainly Aspergillus flavus, Aspergillus fumigatus and Aspergillus parasiticus) and mycotoxins (most prevalent being aflatoxins and fumonisins). This was observed in all 20 samples irrespective of the marketing channel or perceived quality. Also, many samples within each marketing channel failed the 10 ppb limit for aflatoxin set by regulations in South Africa. Although fumonisin was detected in all samples, a single sample failed the Food and Drug Administration (FDA) limit of 100 ppb. Both OTA and ZEA were found at low concentrations and were absent in some samples. This study suggested that higher priced dog food does not ensure superior quality or that it is free from contamination with fungi or mycotoxins. However, analysis of the more expensive PBs did reveal contamination concentrations lower than those of the SBs.
作者:Singh, SD;Chuturgoon, AA
作者单位:Univ KwaZulu Natal
期刊名称:JOURNAL OF THE SOUTH AFRICAN VETERINARY ASSOCIATION
期刊影响因子:0.441
出版年份:2017
出版刊次:10
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  1. 编译服务:农产品质量安全
  2. 编译者:虞德容
  3. 编译时间:2018-01-15