一种利用废弃羽毛生产氨基酸液肥的生物制方法

摘要

A biological preparation method for producing an amino acid liquid fertilizer with waste feathers, comprising: performing enzymolysis on feather meal with a compound enzyme to obtain enzymolysis liquid; then adding acid protease into the enzymolysis liquid for enzymolysis; and filtering after enzymolysis is finished, and performing enzyme inactivation on a filtrate to obtain the amino acid liquid fertilizer. The compound enzyme comprises keratinase and amino acid peptidase. According to the method, the enzymolysis rate of the feathers can reach 80% or above, the prepared amino acid liquid fertilizer contains 17 kinds of amino acids, the variety is complete, the content of the amino acids can reach 10.12% (mass fraction) or above, the content of small peptide can reach 9.39% (mass fraction), and the method can meet the national standard for the amino acid liquid fertilizers without concentration, so that the environment-friendly amino acid liquid fertilizer can be prepared.