来自巴西和厄瓜多尔的豆到棒巧克力中的微量元素
Vitor Hugo Burgon1, Manuela Luísa Nunes Silva1, Raquel Fernanda Milani1
1Institute of Food Technology, Av. Brasil 2880, Jd. Chapadão, P.O. Box 139, Campinas, SP 13070-178, Brazil.
概括
来自巴西和厄瓜多尔的豆到棒巧克力和可可豆被分析了微量元素. 一些样本超过了和的摄入限值,表明需要监测.
科学领域:
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
- 环境科学 环境科学
背景情况:
- 由于其质量,豆到棒巧克力消费量正在增加.
- 可可豆可以从环境来源积累无机污染物.
- 尽管在豆到酒吧生产中加工最小,但污染可能会发生.
研究的目的:
- 为了评估来自巴西和厄瓜多尔的豆到棒巧克力和可可豆中的微量元素含量.
- 识别巧克力供应链中的潜在无机污染物.
主要方法:
- 分析了来自巴西和厄瓜多尔的豆到棒巧克力 (n=75) 和可可豆 (n=23).
- 使用酸消化和微波辅助系统进行样品制备.
- 使用感应合等离子体质谱 (ICP-MS) 和光学发射光谱 (ICP-OES) 量化微量元素.
主要成果:
- 巧克力中的微量元素含量包括As (<0.022-0.023毫克/公斤),Cd (<0.002-0.74毫克/公斤),Cu (0.11-21.2毫克/公斤),Co (<0.003-1.88毫克/公斤),Hg (<0.010-<0.010毫克/公斤),Pb (<0.007-0.22毫克/公斤) 和Se (<0.029-0.35毫克/公斤).
- 暴露评估显示,儿童的暂时可容忍月摄入量 (PTMI) 高达93%,的可容忍上限摄入量 (UL) 高达123%.
- 可可豆的和含量超过了巴西监管门.
结论:
- 豆到棒巧克力和生可可豆都需要微量元素监测.
- 巧克力产品中无机污染物的潜在健康风险需要注意.
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