Asparagus is the seedling of asparagus, a perennial herb of asparagus, which can be used as vegetable. The unearthed white bamboo shoots are called white bamboo shoots, and the unearthed green ones are called green bamboo shoots. Even if the production area is different, no matter which asparagus varieties, as long as the sun will become green asparagus, buried in the soil or shading the sun, the color of asparagus will be white.
The selenium content of asparagus is higher than that of common vegetables, close to that of mushroom, and even comparable to that of sea fish and shrimp. In a word, from the analysis results of amino acids, zinc, copper, iron, manganese and selenium in white and green shoots, it can be seen that the content of amino acids and trace elements in green shoots is higher than that in white shoots except aspartic acid.