作　　者： ; ; ; ; ;

机构地区： 中国广州分析测试中心

出　　处： 《食品工业》 2018年第6期58-61,共4页

摘　　要： 主要研究了茶叶不同前处理条件对其碘测得量的影响。在单因素试验的基础上,探讨了四个不同影响因子,应用Box-Benhnken响应面优化试验设计,以碘测得量为响应值,进行响应面分析。结果表明,最佳提取条件:加入10 g/100 m L碳酸钾2.0 m L,10 g/100 m L硫酸锌1.0 m L,在470℃下灰化70 min。在此条件下,RSM模型预测的碘测得量为79.75μg/g,实测的碘测得量为82.57μg/g,与预测值无明显差异。 The main purpose was to study the effect on the yield of Iodine in tea by different pretreatment conditions. Response surface methodology（RSM） was employed to optimize the pretreatment conditions of iodine from tea. Based on single-factor tests, Box-Benhnken experiment was carried out with four factors. RSM was used to determine the effect of prime factors on the yield of Iodine. Results showed that the optimum pretreatment conditions by RSM were K2CO3 1.0 m L, ZnSO4 2.0 m L, ashing temperature 470 ℃, ashing time 70 min. Under the conditions, the RSM model predicted the content of Iodine was 79.75 μg/g, which was not significant difference compared to actual measured value 82.57 μg/g.

关 键 词： 茶叶 碘 响应面 气相色谱

领　　域： []