Abstract: A recombinant antibacterial peptide TrSub, preparation method and application for the recombinant antibacterial peptide TrSub is disclosed, and belongs to the field of genetic engineering and biotechnology. The amino acid sequence of the recombinant antimicrobial peptide TrSub is shown in SEQ ID No. 1. The nucleotide sequence encoding the amino acid shown in SEQ ID NO.1 is shown in SEQ ID NO.2. The disclosure also provides a method for preparaing the recombinant antimicrobial peptide TrSub, wherein the recombinant antimicrobial peptide TrSub has an inhibitory effect on Escherichia coli, Salmonella, Staphylococcus aureus and Clostridium perfringens. The disclosure has good thermal stability, acid resistance, pepsin resistance and low hemolytic activity, and is beneficial to the application of the disclosure in the preparation of fee and feed additive.

Abstract: An efficient and high-quality preparation method of lyophilized vegetable noodles is disclosed, which uses high gluten wheat flour and vegetable powder as major raw materials, adds modified starch, edible salt, an emulsifier, edible colloid, a water retaining agent, edible oil, a flavoring agent, a colorant, maltodextrin and wheat gluten, and conducts rising, dough pressing, cooking, high temperature steam gelatinization, rinsing, ultrasonic treatment and infrared lyophilization to obtain convenient and instant lyophilized vegetable noodles. The lyophilized noodles processed by adopting the method have moisture content of 5%-8%, shortened drying time by more than 10 h than ordinary lyophilization, merit factor of more than 90%, easy brewing, smooth and pliable taste, strong aroma, yellowish color, long shelf life and low production power consumption.