摘要： 在全国范围内采集了8个来源的22个不同批次的糊化淀粉尿素样品,对其常规指标、淀粉含量和糊化度进行了检测以及体外脲酶法缓释研究,还进行了三聚氰胺和三聚氰酸的风险分析。试验结果表明:我国不同来源的糊化淀粉尿素产品的常规指标、淀粉含量、糊化度变异较大,可以通过体外恒温脲酶法30 min时的氨氮释放量来评价糊化淀粉尿素的缓释效果;糊化淀粉尿素中未检出三聚氰胺,三聚氰酸含量偏高,可能与尿素中三聚氰酸含量有关。由此可见:我国糊化淀粉尿素产品质量参差不齐,缓释效果不佳,亟需建立起糊化淀粉尿素的质量评价体系,规范产品市场;糊化淀粉尿素的使用不存在三聚氰胺超标的风险,应对其中三聚氰酸含量引起重视。

关键词: 糊化淀粉尿素, 质量, 安全

Abstract: Collecting 22 different stareas from 8 different sources throughout the country,detecting the general indicators,starch content and gelatinization degree of starch,and then studying on the slow-release of starea in vitro,detecting the melamine and cyanuric acid in starea.The results showed that:the general indexes,starch content,gelatinization degree of the stareas from different sources in China were widely varying.We can assess the quality of starea by the release of NH3-N in 30 minutes in vitro.There were no melamin in stareas,the content of cyanuric acid which may be related with the content of cyanuric acid in urea was higher.Thus,the quality of the starea in China is a mixed bag,some of the products can not be slow releasing,we need to build the quality evaluation system for starea and regulate the market of starea.There were no risk of melamine in use of starea,but we should pay more attention to the content of cyanuric acid in starea.

Key words: Starea, Quality, Safety

中图分类号: 

• TS211