A processing method for reducing lignin content in tobacco stems
A processing method and lignin technology, applied in tobacco, tobacco treatment, application, etc., can solve the problems of reducing tobacco stems, unable to effectively reduce tobacco stem lignin, etc., to reduce lignin content, reduce emissions, and reduce aromatic amines class effect
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Embodiment 1
[0029] Cut 200g of tobacco stem samples into small pieces of 30-40mm, mix them with 1200mL of water, soak them in a water bath at 65°C for 20 minutes, take them out, filter the tobacco stems, and grind them with a gap of 0.5mm, and air-dry them to obtain Tobacco sample.
[0030] Take 20 g of air-dried tobacco stem samples, mix them with 180 g of glycerin and 5.0 g of potassium hydroxide, and react at 100° C. for 100 min. After the reaction is finished, add 100 g of 30% glycerol aqueous solution after cooling for 10 min and stir, then filter with a 400-mesh filter cloth to obtain insoluble matter. The insoluble matter was washed with water until neutral, and air-dried to obtain product 1.
Embodiment 2
[0032] Cut 200g of tobacco stem samples into small pieces of 30-40mm, mix them with 1000mL of water, soak them in a water bath at 55°C for 30 minutes, take them out, filter the tobacco stems, and grind them with a gap of 0.2mm, and air-dry them to obtain Tobacco sample.
[0033] Take 20 g of air-dried tobacco stem samples, mix them with 240 g of glycerin and 6.0 g of potassium hydroxide, and react at 150° C. for 40 min. After the reaction is finished, cool for 10 min and add 100 g of 20% glycerin aqueous solution to stir, then filter with a 500-mesh filter cloth to obtain insoluble matter. The insoluble matter was washed with water to neutrality, and the product 2 was obtained after air-drying.
Embodiment 3
[0035] Cut 200g of tobacco stem samples into small pieces of 30-40mm, mix them with 1400mL of water, soak them in a water bath at 85°C for 25 minutes, take them out, filter the tobacco stems, and grind them with a gap of 0.3mm, and air-dry them to obtain Tobacco sample.
[0036] Take 20 g of air-dried tobacco stem samples, mix them with 360 g of glycerin and 8.0 g of potassium hydroxide, and react at 160° C. for 120 min. After the reaction is finished, cool for 20 min and add 100 g of 40% glycerol aqueous solution to stir, then filter with a 600-mesh filter cloth to obtain insoluble matter. The insoluble matter was washed with water until neutral, and air-dried to obtain product 3.
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