白酒中邻苯二甲酸酯类物质的典型污染特征及源解析研究

白酒产业在国民经济中占据重要地位，白酒安全问题不仅影响广大人民身体健康，更极易造成全社会的恐慌和质疑。目前，酒企大范围施行“以钢代塑”改革，商品酒包装也尽力规避塑料制品，但邻苯二甲酸酯类物质（PAEs）仍被检出，其典型污染特征尚不明确，真正来源尚不清楚。本课题以白酒中PAEs类物质为研究对象，从全产业链控制角度出发，在总体评估的基础上，阐明不同香型、酒精度、产地酒的PAEs典型污染特征；建立QuEChERS-GC/MS法检测酿酒原料（高粱、大米、糯米、玉米、大麦和小麦）PAEs类物质的方法；建立分散液液微萃取-GC/MS法检测酿酒用水PAEs类物质的方法；在上述化学分析的基础上，应用主成分分析和多元回归分析手段，构建白酒PAEs含量的预测模型，阐明其来源的关键控制点，揭示PAEs类物质从谷物、水体到酒样的迁移规律。本课题的资助为提高酒企的日常质控标准和风险预警水平提供科学数据。

Chinese Liquor industry occupied an important role in the national economy. The safety issues of Chinese Liquor affected not only the majority of people's health, but also could cause panic and doubt in whole society. Currently, the enterprises of Chinese Liquor implemented the reform that the plastic was replaced by steel in production process and the packaging materials also tried to avoid the use of plastics. However, the phthalate esters (PAEs) were still detected. The typical pollution characteristic and the real sources of PAEs were not clear in Chinese Liquor. This study under the overall assessment and whole production chain control, was used to elucidate the typical pollution characteristics of PAEs in different flavor type, alcohol content and producing area. A modified QuEChERS sample preparation method combined with GC-MS was established to determine the PAEs in raw materials including sorghum, rice, glutinous rice, corn, barley and wheat. A dispersive liquid-liquid micro-extraction method combined with GC-MS was established to determine the PAEs of water in Chinese Liquor production. The predictive mathematical model of the PAEs content was built on the basis of chemical analysis coupled with principal component and multiple regression analysis. The critical control points were clarified. The migration regularity that migrated from raw material, water to Chinese Liquor was revealed. The funding of this project would be helpful to improve the daily quality control standards and risk warning level of Chinese Liquor enterprises.