为了用最经济的方法,解决维生素丙缺乏问题,研究了用针叶树叶制作浸剂的方法,实验结果证明:用新鲜松针洗净后切断约半寸长,先用少量沸水浸泡20分钟,然后捞出再用温开水浸泡经20—48小时,即可饮用。该浸液呈黄绿色,有淡茶味,无毒,维生素丙的含量较高。如直接用沸水浸泡后,20分钟就饮用,就更方便了。 In order to use the most economical method to solve the problem of vitamin C deficiency, the method of making infusions with coniferous leaves was studied. The experimental results showed that after washing with fresh pine needles, the cuttings were cut about half inch long, soaked in a small amount of boiling water for 20 minutes, and then fished. After soaking in warm water for 20-48 hours, you can drink it. The immersion liquid was yellow-green, pale tea-like, non-toxic, and high in vitamin C content. If soaked directly in boiling water, 20 minutes to drink, it is more convenient.