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Enzymes are bio-catalysts produced by plants, animals and microorganisms. They play an important role in our daily life by catalyzing several biochemical reactions. In most cases, submerged fermentation techniques are employed for the production of the enzymes. In some cases, solid state fermentation process is also used for production of fungal food enzymes due to the die limitations of the submerged fermentation technique. The bran / KOJI is loaded on trays in a trolley and kept in the KOJI ROOM. During fermentation, the bran in the trays will produce considerable heat and absorb moisture. KOJI ROOM is constructed with bricks plastered with water proof cement and duly coated with epoxy paint. It has an opening on one side of the fitted with a circulation blower.. The blower takes the inside air from the room and passes through the ducting in two paths. In one path it takes the hot and humid air and in the other it takes the cool air. The cool air and hot, humid air are mixed in the mixing chamber located on the other side of the KOJI ROOM. Water condensate gets drained through the bottom drain valve. Only the conditioned humid air will move through the top opening to the perforated duct, which is placed inside the die room. This will pass through the trays loaded with koji / bran. The air emerging from the koji will get sucked by the circulation blower and the circulation continues. The humidity and the temperature are maintained by a heater and chilled water circulation. A modern electronic control system is used. The Relative humidity and temperature are indicated and controlled by the indicating controllers which adjust the heating and chilled water circulation to achieve accurate control. This is housed in an attractive control panel. Signal is used for indicating, controlling, recording or data logging as per the customers requirement. Murhopye has successfully developed a solid state fermentor ( KOJI) for laboratories and Industries. Model PF-50 ( Koji) is a pilot scale solid state fermentation plant available in 25 kg capacity onwards on a turnkey basis. Model LF-! ( KOJI) is a laboratory scale aseptic solid state fermentor with the following features:·
· Glass vessel of 1 or 2 litre capacity · Built in humidity and temperature generator and control
. Provision to monitor exhaust gas O2 and CO2
. Digital control and monitoring of process
. Fully Autoclavable
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