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Quantitative Analysis of Ethyl Carbamate in Distillers Grains Co-products and Bovine Plasma by Gas Chromatography-Mass Spectrometry.
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-08-24 , DOI: 10.1021/acs.jafc.0c03535 Linxing Yao 1 , Kaitlyn Maloley 1 , Corey Broeckling 1 , Steve Ensley 2 , Scott Crain 3 , Robert Coffey 4
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2020-08-24 , DOI: 10.1021/acs.jafc.0c03535 Linxing Yao 1 , Kaitlyn Maloley 1 , Corey Broeckling 1 , Steve Ensley 2 , Scott Crain 3 , Robert Coffey 4
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Ethyl carbamate (EC) is a fermentation byproduct in foods and beverages and classified as a Group 2A probable human carcinogen. Each year, greater than 40 million metric tons of fermentation co-products from the U.S. ethanol industry are fed to food animals. A gas chromatography–mass spectrometry assay was developed to quantify EC extracted from various distillers grains co-products with a limit of detection at 0.7 ng/g (on an as-fed basis). EC was detected in all the distillers grains co-products surveyed in this study. Corn condensed distillers solubles contained the highest concentration of EC, ranging from 1618 to 2956 ng/g. Concentrations of EC in other types of distillers grains co-products varied from 17 to 917 ng/g. Cattle fed distillers grains co-products that constituted 19–38% of the total feed (as-fed) were found to contain 2–3 ng/mL of EC in blood plasma. No EC was detected in blood plasma from grass-fed control cattle.
中文翻译：
气相色谱-质谱法定量分析酒糟副产物和牛血浆中的氨基甲酸乙酯。
氨基甲酸乙酯（EC）是食品和饮料中的发酵副产品，被归类为2A组可能的人类致癌物。每年，来自美国乙醇行业的发酵副产品超过4000万吨被喂给食用动物。开发了一种气相色谱-质谱分析法，用于对从各种酒糟副产品中提取的EC进行定量，检测限为0.7 ng / g（基于进料）。在这项研究中调查的所有酒糟副产品中均检测到了EC。玉米浓缩蒸馏酒的可溶性物质含量最高，为1618至2956 ng / g。其他类型的酒糟副产品中EC的浓度从17到917 ng / g不等。牛饲养的酒糟谷物副产品占总饲料的19-38％（原样），血浆中EC含量为2-3 ng / mL。从草饲对照牛的血浆中未检测到EC。
更新日期：2020-09-30
中文翻译：
气相色谱-质谱法定量分析酒糟副产物和牛血浆中的氨基甲酸乙酯。
氨基甲酸乙酯（EC）是食品和饮料中的发酵副产品，被归类为2A组可能的人类致癌物。每年，来自美国乙醇行业的发酵副产品超过4000万吨被喂给食用动物。开发了一种气相色谱-质谱分析法，用于对从各种酒糟副产品中提取的EC进行定量，检测限为0.7 ng / g（基于进料）。在这项研究中调查的所有酒糟副产品中均检测到了EC。玉米浓缩蒸馏酒的可溶性物质含量最高，为1618至2956 ng / g。其他类型的酒糟副产品中EC的浓度从17到917 ng / g不等。牛饲养的酒糟谷物副产品占总饲料的19-38％（原样），血浆中EC含量为2-3 ng / mL。从草饲对照牛的血浆中未检测到EC。
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