Preparation of Tieguanyin Tea Polysaccharide Extract and Its Application in Tobacco Sheets
A technology for Tieguanyin tea and tobacco sheet, which is applied in the field of preparation of Tieguanyin tea polysaccharide extract, can solve the problem that the production time of tobacco sheet is not very long, and can improve the lack of tobacco aroma, improve the quality of smoking food and sensory comfort, and the process optimized effect
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Embodiment 1
[0029] Weigh 100 grams of commercially available Anxi Tieguanyin tea leaves, dry them at 45°C for 2 hours, crush them and pass through a 50-mesh sieve, add 300 grams of pure water, let stand at 4°C for 12 hours, add 500 grams of pure water, ℃, ultrasonic extraction at 50kHz for 3 times, 15 minutes each time, combine the extracts, pass through a 1000-mesh sieve, and collect the extracts.
[0030] The above extract was microfiltered with a fiber membrane with a pore size of 0.2 μm, and the filtrate was ultrafiltered with an ultrafiltration membrane with a molecular weight cut-off of 30 KDa at 0.1 MPa and 25° C., and the retentate was collected.
[0031] Under the conditions of 0.35 g of protease and water bath at 45°C, the enzymatic hydrolysis of the retentate was carried out for 2 hours, and the protease was inactivated at 85°C for 15 minutes, and the enzymatic hydrolysis was collected.
[0032] Mix the above enzymatic solution into 5 times the volume of 95% food grade ethanol, l...
Embodiment 2
[0037] Weigh 100 grams of commercially available Anxi Tieguanyin tea leaves, dry at 50°C for 2 hours, crush and pass through a 100-mesh sieve, add 300 grams of 0.5% sodium carbonate aqueous solution, let stand at 4°C for 24 hours, add 500 grams of The same sodium carbonate aqueous solution was subjected to ultrasonic extraction at 50° C. and 100 kHz for 3 times, each time for 15 minutes, and the combined extracts were passed through a 1000-mesh sieve to collect the extracts.
[0038] The above extract was microfiltered with a fiber membrane with a pore size of 0.2 μm, and the filtrate was ultrafiltered with an ultrafiltration membrane with a molecular weight cut-off of 20 KDa at 0.1 MPa and 25° C., and the retentate was collected.
[0039] Under the conditions of 0.25 g of protease, stirring at 300 rpm, and heating at 5 °C / min to 50 °C at a constant temperature, the enzymatic hydrolysis of the retentate solution was carried out for 2 hours, and the protease was inactivated at 8...
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