大麦茶及大麦籽粒微量元素含量分析

The Analyses of Trace Elements Contents of Barley Tea and Barley

对比分析4种青稞与24种中外大麦茶和2种国外引进的栽培大麦共30个样品中微量元素Fe、Zn、Se、Mn、Cu的含量,为青稞新产品的研发提供理论依据。采用原子吸收光谱法测定样品Fe、Zn、Mn、Cu和Se的含量,测定结果为:30个样品Fe的含量在19.29 mg/kg^49.04 mg/kg之间,平均含量最高的为青稞,达45.45 mg/kg;Zn的含量在9.04 mg/kg^27.33 mg/kg之间,平均含量最高的为青稞,达22.89 mg/kg;Se的含量在7.57μg/kg^155.12μg/kg之间,平均含量最高为青稞,达41.39μg/kg;Mn的含量在5.55 mg/kg^12.64 mg/kg之间,平均含量最高的为青稞,达11.76 mg/kg;Cu的含量在1.58 mg/kg^5.78 mg/kg之间,平均含量最高的为青稞,达4.44 mg/kg。实验数据表明:甘孜州青稞营养价值较高,对新产品研发具有一定意义。

Trace elements of Fe,Zn,Se,Mn and Cu are gained by analyzing 4 kinds of highland barley,24 sorts of sino-foreign barley tea and 2 types of imported barley to provide the theory for the development of new production from barley. The analysis of Fe,Zn,Se,Mn and Cu in the 30 samples with atomic absorption spectrometry（AAS）suggests their great differences：Fe＇s content scope of 19.29 mg/kg-49.04 mg/kg,the average was the highest in the barley,reached 45.45 mg/kg;Zn＇s content scope of 9.04 mg/kg-27.33 mg/kg,the average was the highest in the barley,reached 22.89 mg/kg;Se＇s content scope of 7.57 μg/kg-155.12 μg/kg,the average was the highest in the barley,reached 41.39 μg/kg;Mn＇s content scope of 5.55 mg/kg-12.64 mg/kg,the average was the highest in the barley,reached 11.76 mg/kg;Cu＇s content scope of 1.58 mg/kg-5.78 mg/kg,the average was the highest in the barley,reached 4.44 mg/kg.Experimental data showed that：high nutritional value of highland barley in Ganzi Prefecture,of new product development has certain significance.