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软儿梨中氨基酸的提取及总氨基酸的定量分析
Extraction of Amino Acid and Quantitative Analysis of Total Amino Acid in ’Qinghai’ Soft Pear
【摘要】 以青海产软儿梨为原料,以70%乙醇回流提取总氨基酸2h,采用甲醛滴定法测定总氨基酸的含量。结果表明:软儿梨中总氨基酸的含量为1.84%,标准偏差为0.244。
【Abstract】 In this paper,the free amino acids and mixed amino acids were extracted from soft pear which used as raw materials,the free amino acids were extracted by 70%alcohol reflux and aether extraction.Total amino acid was determined by formol titration method.The results showed that total amino acid content of the soft pear was 1.84%, relative standard deviation was 0.244.
【关键词】 软儿梨;
氨基酸;
甲醛滴定法;
定量分析;
【Key words】 soft pear; amino acid; formol titration method; quantitative analysis;
【Key words】 soft pear; amino acid; formol titration method; quantitative analysis;
- 【文献出处】 北方园艺 ,Northern Horticulture , 编辑部邮箱 ,2011年08期
- 【分类号】S661.2
- 【被引频次】5
- 【下载频次】300