Slice production method for treating tobacco waste extract by using membrane separation technology
A technology for the production of tobacco waste and flakes, which is applied in the treatment of tobacco, tobacco, and preparation of tobacco, etc. It can solve the problems of poor fluidity, difficulty in controlling the quality of the extract solution, unfavorable growth and reproduction of microorganisms, etc., and achieves the improvement of the quality of tobacco flakes and the separation process. Ease of control, the effect of improving the quality of tobacco sheets
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[0022] Example 1:
[0023] 1. Take 15kg of tobacco stems, add 5 times of water, raise the temperature to 60°C, and soak for 1 hour.
[0024] 2. Use a conventional centrifuge to separate 50kg of the extract. The extraction liquid sampling and testing showed that the total nitrogen was 3.2mg / L, and the pectin was 1.03mg / L. Among them, total nitrogen includes macromolecular proteins and small molecular amino acids, nicotine and other substances.
[0025] 3. Use an ultrafiltration membrane separation device to remove impurities from the leaching solution, and the pore size of the membrane element is 7nm. The working conditions are: pressure 0.5MPa, flow velocity 4m / s, temperature 40℃, and obtain 44kg of filtrate. The ultrafiltration filtrate sampling and testing showed that the total nitrogen was 2.2 mg / L, which was 31% less than the original extract, and pectin was not detected. The remaining total nitrogen should be the amino acids, nicotine and other small molecular nitroge...
Example Embodiment
[0030] Example 2:
[0031] 1. Take 12kg of tobacco powder, add 5 times of water, raise the temperature to 60°C, and soak for 1 hour.
[0032] 2. Separate 50kg of extracting liquid with a plate and frame. The extraction liquid sampling and testing showed that the total nitrogen was 2.8mg / L, and the pectin was 0.4mg / L. Among them, total nitrogen includes macromolecular proteins and small molecular amino acids, nicotine and other substances.
[0033] 3. The leaching solution is passed through an ultrafiltration membrane separation device to remove impurities, and the pore size of the membrane element is 7nm. The working conditions are: pressure 0.5MPa, flow velocity 4m / s, temperature 40℃, and obtain 41kg of filtrate. The ultrafiltration filtrate was sampled and detected: the total nitrogen was 2.1 mg / L, which was 25% less than the original extract, and pectin was not detected. The remaining total nitrogen should be the amino acids, nicotine and other small molecular nitrogen-...
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