Toona sinensis buds are fresh enough, and it is ok not to be blanched, because the nitrate content of Toona sinensis buds is low in the early stage of germination, and the nitrate content is also rising with the continuous growth of Toona sinensis buds. That is to say, the more tender the Toona sinensis buds are, the less nitrate there is, and the less nitrite will be produced in future storage. ?
The contents of nitrate and nitrite are also related to planting methods, harvest time and other factors. The contents of nitrate and nitrite will be different among different vegetables, different producing areas and different seasons of the same vegetable.
Extended data
Causes of nitrite and nitrate in plants
Plants need nitrogen fertilizer for growth. Nitrogen is a widespread element in nature. Plants absorb nitrogen from the environment and finally synthesize amino acids through complex biochemical reactions. In this process, nitrate production is an inevitable step.
There are also some reductase in plants, which will reduce some nitrate to nitrite. Therefore, all plants contain nitrate and nitrite, and Toona sinensis is no exception. However, the contents of nitrate and nitrite in plants are different due to different varieties.
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