常见蔬菜中抗坏血酸含量的测定与分析

Determination and Analysis of the Content of Ascorbic Acid in Common Vegetables

[目的]测定并分析常见蔬菜中的抗坏血酸含量。[方法]采用2,6-二氯酚靛酚滴定法对济南市14种不同种类的336个老百姓餐桌上常见蔬菜抗坏血酸(以下简称维生素C)含量进行测定与分析。[结果]不同种类蔬菜中维生素C含量有较大差别。其中,尖椒中维生素C含量最高,平均值为1 200.00 mg/kg;茄子中维生素C含量相对较低,平均值为63.80 mg/kg。[结论]了解这些常见蔬菜中维生素C含量,对人们合理补充维生素C具有重要意义。

[Objective] To determine and analyze the content of ascorbic acid in common vegetables.[Method] The content of ascorbic acid（ hereinafter referred to as the vitamin C） of 14 different kinds 336 common vegetables on people＇s table in Jinan were measured and analyzed by 2,6-two chlorophenol indophenol titration method. [Result] There were large differences in vitamin C content in different kinds of vegetables,the content of vitamin C in pepper was the highest with the average of 1 200. 00 mg/kg,the content of vitamin C in eggplant was relatively low with a mean of 63. 80 mg/kg. [Conclusion] It is great significance for people to supplement vitamin C reasonably by understanding the vitamin C content of common vegetables.