关键词: 香辛料, 杀菌技术, 趋肤效应

Abstract:

To achieve the fluidized transport of solid materials, a set of sealed sterilization cavity was designed. The spiral conveyor with scraper was installed in the intra-cavity, and the conveyor was heated by the high-frequency low-voltage power. The spice in the intra-cavity was pushed forward by the conveyor to realize the continuous feeding and sterilization. A small amount of hot dry-steam was pumped into the sterilization cavity to auxiliarly heat and take excess moisture away from the heated spice. After the stage of sterilization process, the qualified spice was transformed into the fast cooling cell to lower down the temperature, and until to the rooms temperature, then was packaged directly. The overall sterilization processes were conducted in a closed space, which realized the parameters measurement in every critical control point (CCP). By the preliminary experiment, when the amount of chili powder sterilization was 1 000 kg/h, the total number of colonies could be controlled under 10 000 CFU/g.

Key words: spice, sterilization, skin effect