影响巴西珀南布科州牛奶中有毒和必需微量元素度的因素
Emanuel Felipe de Oliveira Filho1,2, Marta López-Alonso2, Guilherme Vieira Marcolino3
1Department of Veterinary Medicine, Universidade Federal Rural de Pernambuco (UFRPE), Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, Brazil.
Animals : an open access journal from MDPI
|August 12, 2023
概括
巴西珀南布科的母牛奶含 (Pb) 量很高,在近30%的样本中超过了安全限值. 发现铜 (Cu),铁 (Fe) 和 (Zn) 等必需矿物质存在缺陷,构成公共卫生风险.
科学领域:
- 环境科学 环境科学
- 食品安全 食品安全
- 分析化学 分析化学
背景情况:
- 牛奶是重要的矿物质来源,但也可以积累有毒元素.
- 评估牛奶的元素成分对于公共卫生和食品安全法规至关重要.
- 之前的研究还没有全面评估来自巴西珀南布科的牛奶中的有毒和必需元素.
研究的目的:
- 为了确定来自巴西珀南布科的牛奶中有毒 ( - Cd, - Pb) 和必需 (铜 - Cu,铁 - Fe, - Zn) 元素的含量.
- 确定影响牛奶中金属度的因素,包括靠近道路,废水和挤奶方法.
- 评估该地区与牛奶消费相关的潜在公共卫生风险.
主要方法:
- 收集和分析了来自珀南布科的142个原牛奶样本.
- 使用感应合的等离子光辐射光谱法 (ICP-OES) 量化元素度.
- 应用统计和化学分析来确定影响金属含量因素.
主要成果:
- 在近30%的牛奶样本中, (Pb) 度超过了巴西法律限制 (0.05 mg/L).
- 在所有分析的样本中, (Cd) 含量都低于最大允许限度 (0.02 mg/L).
- 基本元素 (Cu,Fe,Zn) 的度低于通常报告的度,这可能表明缺乏.
- 接近主要道路被确定为影响Pb,Cd和Cu度的主要因素.
- 废水的存在影响了Cu水平,而挤奶方法与金属含量没有显著的相关性.
结论:
- 在珀南布科生产的母牛奶由于Pb含量升高和缺乏必需矿物质 (Cu,Fe,Zn) 造成了公共卫生风险.
- 环境因素,特别是靠近主要道路的环境,对牛奶的基本污染状况产生重大影响.
- 监管监测和缓解策略是必要的,以确保该地区的牛奶安全和营养质量.
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