共查询到18条相似文献,搜索用时 80 毫秒
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葡萄酒中氨基甲酸乙酯的形成机理及检测方法 总被引:1,自引:0,他引:1
本文对葡萄酒中氨基甲酸乙酯的形成机理、检测方法以及氨基甲酸乙酯的消除方式进行了综述。由于发酵食品中氨基甲酸乙酯会给人体带来长期的危害,所以有必要尽快建立氨基甲酸乙酯含量的测定方法和限量标准。 相似文献
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目的 对发酵食品中氨基甲酸乙酯的研究进展进行综述。方法 查阅有关氨基甲酸乙酯致癌机理、形成机理、含量降低方法以及检测方法的文献, 进行总结。结果 氨基甲酸乙酯具有遗传毒性和致癌性, 在发酵食品中较为常见, 氨基甲酸乙酯的形成受多种因素的影响, 其检测方法主要有红外光谱法、色谱法、色谱/质谱联用法。 结论 应建立对各种发酵食品氨基甲酸乙酯含量的标准检测方法及限量标准, 为我国发酵食品中氨基甲酸乙酯限量标准的制定和确保我国发酵食品的安全性提供科学依据。 相似文献
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本文对葡萄酒中氨基甲酸乙酯的形成机理、检测方法以及氨基甲酸乙酯的消除方式进行了综述。由于发酵食品中氨基甲酸乙酯会给人体带来长期的危害,所以有必要尽快建立氨基甲酸乙酯含量的测定方法和限量标准。 相似文献
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人体潜在致癌物-氨基甲酸乙酯(EC)是发酵酒精饮料(中国黄酒、葡萄酒、日本清酒等)酿造过程中伴随产生的副产物,不少国家对市场上各酒种中EC的含量制定了严格的限定标准。黄酒是我国特有传统酒种,当前黄酒中EC含量较高的现状已成为制约我国黄酒业发展尤其是国际化发展的瓶颈之一。本文就近些年国内外已报道的酿造酒中EC形成机理及控制策略研究的现状进行综述,并分析给予中国黄酒的借鉴作用,以期为解决中国黄酒的EC问题提供思路。 相似文献
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为同时检测酒精性饮料中的氨基甲酸甲酯(MC)和氨基甲酸乙酯(EC)含量,采用固相萃取方式对酒样进行前处理,D5-氨基 甲酸乙酯为内标,使用气相色谱串联质谱(GC-MS)定量测定含量。 结果表明,在10~400 μg/L范围内,EC的线性相关系数为0.999 6, MC的相关系数为0.996 1,二者检出限均为10 μg/L,MC加标回收率为103%~108%,RSD为0.50%;EC加标回收率为96%~104%,RSD 为3.79%;方法准确性良好。 MC含量测定结果RSD为3.0%,EC含量测定结果RSD为2.0%,方法精密度良好。 抽样检验结果表明,白酒 中未检出MC,其他酒精性饮料均含有一定量的MC和EC。 相似文献
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《Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment》2013,30(7):826-839
Ethyl carbamate (EC) is a known genotoxic carcinogen that is frequently present in alcoholic beverages and is therefore a public health concern. As a consequence, maximum concentration levels for EC in these commodities are legislated in several countries. Quantitative analytical methods are therefore essential to monitor EC levels in beverages. Most published analytical methods for the determination of EC in alcoholic beverages utilise elaborate sample pre-treatment procedures to obtain injectable samples, or yield low sensitivity, for example where direct injection is used. In addition, these procedures often require large volumes of toxic solvents and are not generally applicable to diverse alcoholic beverages. This paper describes a novel procedure for the determination of EC in wines, fortified wines and spirits. The procedure is based on reversed-phase solid-phase extraction (SPE) sample clean-up combined with normal-phase liquid chromatography-atmospheric pressure chemical ionisation tandem mass spectrometric (NP-LC-APCI-MS/MS) analysis. This method provides a rapid, robust and simple analytical procedure suitable for the analysis of a diverse range of alcoholic beverages. The accuracy of the method (expressed as average recovery from diverse matrices) is 94.5%, with limits of detection (LODs) ranging between 0.25 and 0.63?µg?l?1 for different matrices. Benefits such as simplified sample preparation, low detection limits, low solvent consumption and good selectivity render the methodology ideally suited to study the occurrence of EC in diverse commodities. The method was applied to study the occurrence of EC in South African wines, fortified wines and spirits. South African wines, aged 1–9 years, contained 1.8–31?µg?l?1 EC (RSD?=?69%, n?=?106), fortified wines aged 2–34 years contained 2.8–79?µg?l?1 EC (RSD?=?89%, n?=?21), and brandies aged 3–20 years contained 4.4–95?µg?l?1 EC (RSD?=?105%, n?=?26). Factors affecting the formation of EC in these commodities were investigated and storage temperature, alcohol content and pH were found to affect the rate of EC formation. Of these variables storage temperature has by far the greatest effect. 相似文献
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氨基甲酸乙酯(简称EC, 又称脲烷)是一种能对试验动物造成多位点致癌, 并且对人类具有潜在致癌性的物质。其广泛存在于发酵酒精饮料中, 主要是由发酵液中氨基甲酰类物质与乙醇作用形成。本文就氨基甲酸乙酯的致癌机制、形成机制、检测方法及抑制途径进行了系统概述, 并对未来氨基甲酸乙酯的相关研究进行了展望。 相似文献
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Huan Deng Lin Ji Xiaoyu Han Tianyang Wu Bing Han Chenyu Li Jicheng Zhan Weidong Huang Yilin You 《Comprehensive Reviews in Food Science and Food Safety》2023,22(3):1495-1516
Ethyl carbamate (EC) is a probable carcinogenic compound commonly found in fermented foods and alcoholic beverages and has been classified as a category 2A carcinogen by the International Agency for Research on Cancer (IARC). Alcoholic beverages are one of the main sources of EC intake by humans. Therefore, many countries have introduced a standard EC limit in alcoholic beverages. Wine is the second largest alcoholic beverage in the world after beer and is loved by consumers for its rich taste. However, different survey results showed that the detection rate of EC in wine was almost 100%, while the maximum content was as high as 100 μg/L, necessitating EC content regulation in wine. The existing methods for controlling the EC level in wine mainly include optimizing raw fermentation materials and processes, using genetically engineered strains, and enzymatic methods (urease or urethanase). This review focused on introducing and comparing the advantages, disadvantages, and applicability of methods for controlling EC, and proposes two possible new techniques, that is, changing the fermentation strain and exogenously adding phenolic compounds. In the future, it is hoped that the feasibility of this prospect will be verified by pilot-scale or large-scale application to provide new insight into the regulation of EC during wine production. The formation mechanism and influencing factors of EC in wine were also introduced and the analytical methods of EC were summarized. 相似文献
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