Abstract:The structure of an alkaline protease from Bacillus subtilis used by a tilapia collagen peptide manufacturer was analyzed, and the technology of the enzyme immobilized by sulfonated polystyrene (SPS) nanoparticles was studied. The particle size distribution, SEM, EDS, TEM, and FT-IR spectroscopy of the carrier before and after immobilization were analyzed. The results showed that the molecular weight of the purified enzyme protein was 31.0 kDa. The amino acid sequence with a consistency of 64.04% and one three… Show more
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