以往许多文献都报告过蔬菜的品种、收获季节等因素对其中抗坏血酸及胡萝卜素含量有很大的影响。例如菠菜、甘蓝、番茄、辣椒、胡萝卜、马铃薯等即因上述因素的影响而使抗坏血酸和胡萝卜素含量有不同程度的差异。 为了了解北京地区不同品种及不同收获季节的蔬菜中抗坏血酸和胡萝卜素的含量,我们选择了13种常食蔬菜作为研究对象。蔬菜样品系於 Many documents in the past have reported that the variety of vegetables, harvest season and other factors ascorbic acid and carotene content has a great impact. For example, spinach, cabbage, tomatoes, peppers, carrots, potatoes and other factors that are ascribed to the above factors ascorbic acid and carotene content to varying degrees of difference. In order to understand the content of ascorbic acid and carotene in vegetables of different varieties and harvest season in Beijing area, we selected 13 kinds of common vegetables as the research object. The vegetable sample is tied to