摘要
通过酸消解法分别对新疆和田枣、新疆若羌灰枣、陕西清涧狗头枣、山西黄河滩枣的枣肉和枣核进行处理,亦对其进行枣肉和枣核吸光度值的测定,进而计算得出这4种红枣枣肉和枣核中的铁元素含量.结果表明:枣肉中铁元素含量由高到低为山西黄河滩枣>陕西清涧狗头枣>新疆若羌灰枣>新疆和田枣;枣核中含有少量的铁,铁元素含量由高到低为山西黄河滩枣>陕西清涧狗头枣>新疆和田枣>新疆若羌灰枣.
The jujube flesh and the jujube core of Xinjiang Hetian jujube,Xinjiang Ruoqiang grey jujube,Shaanxi Qingjian Goutou jujube and Shanxi Yellow River beach jujube were treated by acid digestion.The absorption of jujube flesh and jujube core was measured,and the iron content of jujube flesh and jujube core was calculated.The results showed that the iron content in jujube flesh was from high to low for Shanxi Yellow river beach jujube>Shaanxi Qingjian dogtou jujube>Xinjiang Ruoqiang grey jujube>Xinjiang Hetian jujube;the iron content in jujube cores was from high to low for Shanxi Yellow river beach jujube>Shaanxi Qingjian dogtou jujube>Xinjiang Hetian jujube>Xinjiang Ruoqiang grey jujube,which determined that the jujube cores contained a small amount of iron.
作者
赵大洲
ZHAO Dazhou(School of Chemistry&Chemical Engineering,Shaanxi Xueqian Normal University,Xi′an 710100,China)
出处
《轻工学报》
CAS
2019年第6期9-14,共6页
Journal of Light Industry
基金
国家自然科学基金项目(50573030)
陕西学前师范学院“基础化学实验”教学团队项目
陕西学前师范学院教学改革研究项目(18JG029Z)
农业部富硒重点实验室开放课题(Se-2018B04)
关键词
栆肉
枣核
酸消解
紫外分光光度法
铁元素含量
jujube flesh
jujube core
acid digestion
ultraviolet spectrophotometry
iron content
