稀酸快速浸提大米中镉方法的响应面优化研究  

Response Surface Optimization Study of a Rapid Acid Extraction Method for Cadmium in Rice

作　　者：苏祖俭 蔡文华[2] 吴绒 陈明[2] 周瑞妮 范建彬 邢海涛 蒋定国 胡曙光[2] SU Zujian;CAI Wenhua;WU Rong;CHEN Ming;ZHOU Ruini;FAN Jianbin;XING Haitao;JIANG Dingguo;HU Shuguang(Guangdong Provincial Institute of Biological Products and Materia Medica,Guangzhou 510440,China;Guangdong Provincial Center for Disease Control and Prevention,Heavy Metal Reference Laboratory,Guangzhou 511430,China;China National Center for Food Safety Risk Assessment,Beijing 100022,China)

机构地区：[1]广东省生物制品与药物研究所,广东广州510440 [2]广东省疾病预防控制中心重金属参比实验室,广东广州511430 [3]国家食品安全风险评估中心,北京100022

出　　处：《现代食品》2024年第17期109-115,共7页Modern Food

基　　金：广东省医学科学技术研究基金(A2023039)。

摘　　要：本研究采用稀酸提取法,通过单因素实验和响应曲面实验确定大米中镉的最佳提取条件,为大批量、高通量的大米中镉元素提取和检测提供技术支持,更好地保护人们的健康。结果表明,确定的最佳提取条件为采用0.5%硝酸溶液以4∶1液料比对粒径小于300μm的大米粉提取10min。方法对比结果显示,该方法准确、可靠,与《食品安全国家标准食品中多元素的测定》(GB 5009.268—2016)中的微波消解法相比在统计学上差异不显著,适用于大米中镉的快速提取和检测,能够为食品安全监测提供技术支持。In this study,dilute acid extraction method is used to determine the optimal extraction conditions of cadmium in rice through single factor experiment and response surface experiment,so as to provide technical support for the extraction and detection of cadmium in large quantities and high throughput rice,and better protect people’s health.The results show that the optimal extraction condition is to use 0.5%nitric acid solution to extract rice flour with a ratio of 4∶1 liquid to material smaller than 300μm for 10 min.The comparison results show that the method is accurate and reliable,and the difference is not statistically significant compared with the microwave digestion method in the GB 5009.268—2016,which is suitable for the rapid extraction and detection of cadmium in rice,and could provide technical support for food safety monitoring.

关 键 词：响应面优化 稀酸 快速浸提 大米 镉 

分 类 号：TS213.3[轻工技术与工程—粮食、油脂及植物蛋白工程]