Arsenic, organic foods, and brown rice syrup.
Arsenic, organic foods, and brown rice syrup.
复制标题
DOI：
10.1289/ehp.1104619
复制
发表时间：
2012-05
影响因子：
10.4
通讯作者：
Cottingham KL
中科院分区：
文献类型：
--
作者：
Jackson BP;Taylor VF;Karagas MR;Punshon T;Cottingham KL
背景：稻米可能是许多亚人群无机砷 (Asi) 的主要来源。大米产品也用作预制食品的成分，其中一些可能不是明显以大米为基础的。有机糙米糖浆 (OBRS) 在有机食品中用作甜味剂，作为高果糖玉米糖浆的替代品。我们假设 OBRS 将 As 引入到这些产品中。目的：我们测定了市售糙米糖浆和含有 OBRS 的产品（包括幼儿配方奶粉、谷物/能量棒和耐力运动员使用的高能量食品）中砷的浓度和形态。方法：我们使用电感耦合等离子体质谱 (ICP-MS) 和与 ICP-MS 联用的离子色谱法来测定通过互联网或新罕布什尔州汉诺威地区商店购买的产品中的总砷 (Astotal) 浓度和砷形态。讨论：我们发现 OBRS 可能含有高浓度的 Asi 和二甲基砷酸盐 (DMA)。以 OBRS 作为主要成分的“有机”幼儿配方奶粉的总浓度高达美国环境保护局安全饮用水限值的六倍。含有 OBRS 的谷物棒和高能量食品的砷浓度也高于不含 OBRS 的同等产品。 Asi 是本研究中测试的大多数食品中的主要砷形态。结论：目前美国没有适用于食品中砷的法规，但我们的研究结果表明，我们评估的 OBRS 产品可能会在个人饮食中引入显着浓度的砷。因此，我们得出结论，迫切需要对食品中的砷进行监管限制。
Background: Rice can be a major source of inorganic arsenic (Asi) for many sub-populations. Rice products are also used as ingredients in prepared foods, some of which may not be obviously rice based. Organic brown rice syrup (OBRS) is used as a sweetener in organic food products as an alternative to high-fructose corn syrup. We hypothesized that OBRS introduces As into these products. Objective: We determined the concentration and speciation of As in commercially available brown rice syrups and in products containing OBRS, including toddler formula, cereal/energy bars, and high-energy foods used by endurance athletes. Methods: We used inductively coupled plasma mass spectrometry (ICP-MS) and ion chromatography coupled to ICP-MS to determine total As (Astotal) concentrations and As speciation in products purchased via the Internet or in stores in the Hanover, New Hampshire, area. Discussion: We found that OBRS can contain high concentrations of Asi and dimethyl-arsenate (DMA). An “organic” toddler milk formula containing OBRS as the primary ingredient had Astotal concentrations up to six times the U.S. Environmental Protection Agency safe drinking water limit. Cereal bars and high-energy foods containing OBRS also had higher As concentrations than equivalent products that did not contain OBRS. Asi was the main As species in most food products tested in this study. Conclusions: There are currently no U.S. regulations applicable to As in food, but our findings suggest that the OBRS products we evaluated may introduce significant concentrations of Asi into an individual’s diet. Thus, we conclude that there is an urgent need for regulatory limits on As in food.
登录
查看更多内容
DOI：
10.1351/pac-con-11-09-17
发表时间：
2012
期刊：
Pure and applied chemistry. Chimie pure et appliquee
影响因子：
--
作者：
Jackson BP;Taylor VF;Punshon T;Cottingham KL
通讯作者：
Cottingham KL
影响因子：
11.4
作者：
Sun, Guo-Xin;Williams, Paul N.;Meharg, Andrew A.
通讯作者：
Meharg, Andrew A.
影响因子：
3.3
作者：
通讯作者：
--
影响因子：
--
作者：
Meharg, Andrew A.;Deacon, Claire;Raab, Andrea
通讯作者：
Raab, Andrea
DOI：
10.1111/j.1469-8137.2011.03789.x
发表时间：
2011-10
期刊：
The New phytologist
影响因子：
--
作者：
Carey AM;Norton GJ;Deacon C;Scheckel KG;Lombi E;Punshon T;Guerinot ML;Lanzirotti A;Newville M;Choi Y;Price AH;Meharg AA
通讯作者：
Meharg AA