The fundamental principle and application of cold sterilization are expounded in this article,such as shock wave sterilization,bidogy sterilization,active packaging sterilization,hurdle technology sterilization,membrane sparation sterilization and so on.

Review of biopolymer-based antimicrobial packaging;

Study of vacuum coating Ag on antimicrobial packaging film;

Food antimicrobial packaging can inhibit the microbial populations of the food surface, extend shelf-life and maintain the quality of the food.

Effect of culture mode on growth rate and antibiotic activity of Xenorhabdus nematophila;

Common pathogenic bacteria and plant pathogenic fungi were used as indicators to study the antibiotic activity of Streptomyces fermentation broth extract;its antibiotic spectrum and minimum inhibitory concentration(MIC) were tested and measured.

To study antibiotic activity of strictly anaerobic group of marine sulphate reducing bacteria,seventy pure strains were obtained through collection and purification from five different marine sites in Dalian.