Food sterilization method using PET bottles Description
In the PET bottle hot-filling production, direct contact with the materials, packaging materials mainly PET bottles and caps. PET bottles has just blown out, its colony brought the number of small, but because of blowing bottles out of their own with a static, its easy to adsorption in the air of dust, but dust is a good carrier of micro-organisms, this bottles in the storage process will be subject to microbiological contamination, the degree of pollution and PET bottle packaging methods and storage of the environment. ESL for hot-fill PET bottles and caps of the need to select a reasonable manner and in strict control of packaging packaging materials storage and transportation conditions, while in the production must be disinfected before use. In process design, it is necessary according to the original packaging materials to determine the extent of microbial contamination of disinfectants varieties isolator selection, process conditions used in disinfectants and disinfection methods choice.
ESL in the PET bottle production line hot filling, the bottles are the main methods of sterilization disinfectant perfusion method and jetting method. The main mode of air disinfection cover a continuous period of jetting method and immersion method. In the production line design, the need to intensity of the chosen sterilization disinfectant, disinfectant corrosive and irritating to the staff, the production line speed and stability of the isolator requirements as well as manufacturers of quality goods and reasonable package options control the level of material sterilization method.
PET bottles for hot filling production of ESL package material commonly used disinfectant disinfectant mainly hypochlorous acid, chlorine dioxide, peracetic acid and complex-type disinfectant. In general, in the low-speed production line, using perfusion disinfection disinfectant can be maintained with longer duration of action may make use of bactericidal capacity of the weakness of the disinfectant. While in high-speed production line, in order to ensure the reliability of equipment operation, generally to be used disinfectant spray washed method, the same time, in order to reduce the cost of investment in equipment, technology to request disinfectant spray washed, the action time should be as short as possible Therefore, the choice of disinfectant, you should use a strong disinfectant disinfection.
Variety in the choice of disinfectant, in addition to special consideration for the micro-organisms, broad-spectrum bactericidal disinfectant and bactericidal characteristics of strength, the corrosion of the equipment disinfectant, disinfectant of operator injuries, and disinfectant residual in the package material in the focus elements need to be considered. Such as the current isolators commonly used chlorine dioxide, which has a strong irritant, exposure caused by coughing, sneezing, shortness of breath, chest tightness, and runny nose, tears, etc. to stimulate the symptoms can also occur through inhalation of high concentrations of pulmonary edema.