Sterilizer

Abstract

A sterilizer, comprising a hopper (2) filled with powder and grain, a first rotary valve (3) disposed under the hopper (2), and a second rotary valve (4) formed under the first rotary valve (3). An airtight space (5) for moving the powder and grain is formed between the first rotary valve (3) and the second rotary valve (4). The airtight space (5) is formed to communicate with a saturated vapor jetting tube (23) jetting saturated vapor into the airtight space (5).

Description

technical field [0001] The present invention relates to a sterilizing method used for sterilizing so-called pickled raw materials (hereinafter referred to as "powders, etc."), such as powders, tea leaves, and dried vegetables, which are raw materials for foods, medicines, cosmetics, feeds, fertilizers, etc. device. Background technique [0002] Bacteria adhering to powders, etc. are not necessarily harmful, but they imply the possibility of contamination by pathogenic bacteria or food poisoning bacteria. Especially, to ensure the safety of powders, etc. used as food, sterilization treatment is essential Less. Furthermore, for such sterilization treatment, conventionally, there is a chemical sterilization method using chemical agents such as ethylene oxide and propylene oxide as a non-heat sterilization method. However, although these agents have sterilizing ability against a wide range of microorganisms, even if the sterilization conditions are optimized, it takes a long t...

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Problems solved by technology

However, although these agents have sterilizing ability against a wide range of microorganisms, even if the sterilization conditions are optimized, it takes a long time to sterilize, and there are problems such as the residue of the agent, the possibility of carcinogenicity, or the deterioration of quality. Therefore, there are few practical examples

In addition, there is a method of using ozone to sterilize bacteria, but it has little effect on bacteria other than Gram-negative bacteria such as pathogenic bacteria and E.

In addition, as non-heat sterilization methods, there are radiation sterilization methods and ultraviolet sterilization methods. For the former, as a method of sterilizing food, no other effect has been found except for the prevention of potato germination. The latter has weak sterilizing power and cannot be expected to Permeability of powders and granules

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