For the development of the new natural preservative and the effective use of the rhizome of Hedychium gardnerianum(ginger root), in this paper, it was tested of antimicrobial activities of the extract of ginger root by the method of filter paper. The fresh-keeping effects of ginger root and compound juice had been analyzed by four indexes-sense, the rate of juice leakage, total bacterial count and p H value. The results showed that the extract of ginger root could inhibit the growth of Staphylococcus aureus, Escherichia coli, Penicillium and Aspergillus. The70 percent ginger root produced the best fresh-keeping effect, while the compound preservatives of ginger and garlic could do better job than the best one. It will provide a theoretical basis of the development of the new natural preservative.
Genomics and Applied Biology
The rhizome of Hedychium gardnerianum,Antibacterial,Cold pork fresh-keeping,Compound preservatives