PETpla.net Insider 01+02 / 2017

BOTTLING / FILLING PET planet Insider Vol. 18 No. 01+02/17 www.petpla.net 20 disadvantage is that it requires a large amount of the recycling disinfectant to be used, and sterile water is necessary to rinse the cap and wash away the residual disinfectant in the cap. High water consumption is thus the big- gest disadvantage of the wet sterilisa- tion process. Following research and analysis, Newamstar has released the combined scenarios by using middle pressure UV sterilisation and H 2 O 2 dry sterilisation. The sterilisation scenario is divided into two steps due to the special internal structure of the cap. The first step is to sterilise the cap by using the middle pressure UV lamp, which de-activates the bacteria, virus, spores and other pathogenic bacteria. The effect of the sterilisation can reach ≥3log. Then the second step is to use the spraying gaseous H 2 O 2 to sterilise the cap, which takes the sterilisation effect to ≥5log. By this method, only a little disinfectant is used and without the consumption of water. However, a thorough sterilisation can be achieved. For an aseptic production line with 36,000bph, more than 5,000l/hr water can be saved in the cap treatment stage alone. Empty bottle dry sterilisation technology Currently, lactobacillus milk stored at low temperature is becoming more and more popular with consumers, not only because of the high nutrition of the product itself but also to some extent it can improve the physiologi- cal function of the body. The dilemma is how to capture market share by extending the shelf life of the product, whilst ensuring that product quality is guaranteed. Using the empty bottle dry sterilisation and sterile hot wind decomposition technology can be applied to cold chain filling produc- tion. This ensures that the packaging is thoroughly sterilised, whilst guar- anteeing the quality and safety of the lactobacillus beverage and high & low acid beverage in low temperature. The gaseous H 2 O 2 will be sprayed into the bottle evenly; the log level of the sterilisation can be achieved after the microorganism is rendered inac- tive through the condensing proce- dure. Afterwards, the sterile hot wind system rapidly decomposes the H 2 O 2 to ensure that no residuals are passed to the filling procedure. The sterilisa- tion can be used for all kinds of bottle shape (square bottle, round bottle), bottle size 0.2-1.5l. By using this steri- lisation method, for one 36,000bph filling production line, 5,000-10,000l/ hr rinsing water can be saved whilst guaranteeing effective sterilisation. The dry sterilisation technol- ogy developed by Newamstar is already widely used in all kinds of the system and production lines, and has received widespread customer approval. The technology can make the product safe and at the same time the energy consumption will be reduced, bringing considerable eco- nomic benefits. www.newamstar.com