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200Pcs/lot Fermentation Tube 5 Mm* 30Mm Duchenne Tube Small Glass Tube Dehans Small Catheter Biological Laboratory Supplies

200Pcs/lot Fermentation Tube 5 Mm* 30Mm Duchenne Tube Small Glass Tube Dehans Small Catheter Biological Laboratory Supplies
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Product Details
  • Model Number5Mm*30Mm
  • ClassificationTest Tube
  • Diameter5Mm
  • Length30Mm
  • Net Weight400G
  • Package200 Pieces/ Lot
Product Description
Fermentation tube is a device that detects the fermentation of microorganisms such as yeasts and bacteria and produces other gases. It is a U-shaped tube, a closed side of the scale, you can read the gas production. This device is widely used to determine gas production. This method is simple and not suitable for accurate determination of fermentation strength. The advantage is that the generated gas can be collected and analyzed samples are obtained.
Instructions

The fermentation tube washed, disinfected, and then washed with sterile water 2 or 3 times, suspended in 20oml of sterile water removed 20ml, adding a mass fraction of 2 to 10% glucose, dissolved into the fermentation tube, the injection capacity of Bend at 1/2, so that there is no straight pipe bubbles, the mouth with a good plug into the tube, the incubator into the 30 degree culture. The yeast consumes oxygen to produce carbon dioxide gas during the growth of the respiration. The gas is collected at the top of the tube, and the capacity of the fermentation is expressed by the amount of carbon dioxide gas generated. The gas volume is read from the surface of the graduated tube.

Usage For the food industry, yeast plants, breweries and other units for the determination of the efficiency of yeast fermentation, and in the medicine for bacterial hygiene tests on water, milk, ditch dirt fermentation test. As in the bacteriology glycogen in the organization within the anaerobic decomposition of lactic acid generated changes. Due to the use of surface narrow, very small sales.
200pcs/lot fermentation tube 5 mm* 30mm Duchenne tube small glass tube DeHans small catheter biological laboratory supplies


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