| abstract |
(57) [Summary] [Objective] To provide means for surely improving the preservability of food by using Yucca extract which could not be an effective preservative for food. [Structure] At least one antibacterial substance selected from the group consisting of amino acids, ethanol, polylysine, protamine, lysozyme, chitosan, licorice extract, rosemary extract, and edible organic acids, and extracted from yucca The preservability of food is improved by using it together with steroid saponin. |