氨肽酶是一类从多肽链的氮末端顺序逐个水解氨基酸的酶，在蛋白水解液脱苦和蛋白质的深度水解中有重要作用。
Aminopeptidase, a collection of enzymes which can remove amino acid from the N-terminus of peptides one by one, is very important in protein hydrolysate production and debittering.
用双缩脲反应法可以测出发酵鱼粉中水溶性总肽的含量，用凯氏定氮法可以测出被沉淀的多肽的含量，从而可以计算出发酵鱼粉中寡肽的含量。
Total solvable peptide content in the fermented fishmeal was determined by using the biuret method, and polypeptide in the precipitate by using Kjeldahl method.
本发明涉及能够在植物中赋予提高的氮利用效率的性状的核酸分子和它们的相应的编码多肽。
The present invention relates to isolated nucleic acid molecules and their corresponding encoded polypeptides able to confer the traits of improved nitrogen use efficiency in plants.
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