

The Bioreactor

The Role of the Bioreactor
The kefir water is moved to the bioreactor which will act as a storage tank, where the product will be held at 4 Degrees Celcius and will allow the addition of the fruit juices needed to meet specifications. The unit is fitted with an impeller which will ensure the homogenous mixing of the juices and complete cooling of the product. The stainless steel is relatively non-reactive with the kefir water, compared with other metals, so the final product can be kept in storage for bottling. The product can be removed through an output valve and bottled on site.
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Impeller – The bioreactor is fitted with a motorised impeller which will mix the product at any desired speed will prevent settling at the bottom of the tank and will produce a homogenous product.
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Product in Valve – The valve allows easy and efficient mode of moving product from the fermentation stage to the bioreactor.
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Cooling System, Glycol In/Out – This system will allow the unit to be kept at a constant temperature and cooled to prevent further fermentation if needed. A final temperature for bottling can be accurately achieved.
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Port – A port which can be opened by a twistable handle allows access to the product, if needed, when in the tank. It provides a means of adding other raw materials to be product during the process and a point where the inside of the tank can be viewed.
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Motor for Impeller – This motor will provide a constant means of mixing the product and can keep mixing rates consistent, giving a homogenous product.
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Cleaning Spray Ball – The spray ball provides an easy mode of cleaning the bioreactor. A cleaning agent is pushed to the spray ball at pressure by a pump and then dispersed all over the tank.
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Non-Return Valve – The non-return valve is simply a valve that will allow the escape of gas from the unit if needed, but will not allow gas to enter the tank from the outside.
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Temperature Gauge – This unit is used to accurately record the temperature of the product. Different temperatures will be needed at stages in the bioreactor.
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Thermometers – They are the units which read the in tank temperature of the bioreactor, which is displayed by the Temperature Gauge.
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Product Out Valve – This valve allows product to be easily removed from the tank and allows the flow from the tank to be controlled.
A typical 500L Bioreactor in the Food Industry

A typical bottling machine in the food industry

An automatic bottle filler, powered by electricty, will be capable of drawing liquid through a hose, by a pump. The machine will then disperse the liquid evenly amoung the six bottles. Where caps can be applied by a manual capping gun. Before filling the bottles are cleaned and can be flushed with CO2 if needed.
[1]Beer bottling machines delivered globaly. 2015. Beer bottling machines delivered globaly. [ONLINE] Available at: http://www.icfillingsystems.com/beer-bottling-machines/beer-bottling-machines/. [Accessed 10 December 2015].
[2]Precision Stainless Steel 500 Liter Jacketed Tank Listing #460805 . 2015. Precision Stainless Steel 500 Liter Jacketed Tank Listing #460805 . [ONLINE] Available at: http://www.equipnet.com/precision-stainless-steel-500-liter-jacketed-tank_listid_460805/. [Accessed 10 December 2015].