Based on the shortcomings of long-term use of antibiotics, the industry has always replaced antibiotic growth promoter products, of which antibacterial peptides are currently recognized as the most potential. The world's first discovered antibacterial peptide was the antibacterial activity of the polypeptide produced by the Swedish scientist G. Boman et al. in 1980 by injection of C. vaginalis and Escherichia coli, and was named Cecropins. Antibacterial peptides have broad-spectrum antibacterial activity and have a strong killing effect on bacteria, especially its killing effect on certain drug-resistant pathogens has attracted people's attention.
In addition, some antibacterial peptides have been found to kill some viruses, fungi, protozoa and cancer cells, and even improve immunity and accelerate wound healing.
However, the antibacterial peptide industry is currently an emerging high-tech bioengineering and biotechnology industry. Due to the imperfect early bioengineering methods, the extraction of antimicrobial peptides is extremely expensive, limiting the application in medicine, agriculture, and industry. The industry believes that antibacterial peptides can only be commercialized if the price is less than $10 per gram. Therefore, how to improve the production efficiency of antimicrobial peptides and reduce the cost is a problem that must be solved by applying antimicrobial peptides.