Preparation method of green tea Baijiu
A preparation method and green tea technology, applied in the field of alcohol, can solve the problems of easy fading, lower alcohol yield, easy freezing and the like, and achieve the effects of avoiding antagonism, reducing turbidity and stabilizing wine body
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Embodiment 1
[0027] The preparation method of green tea liquor in the present embodiment is as follows:
[0028] Step 1: Removal of raw material caffeine
[0029] Put the Huangshan Maofeng tea leaves in hot water at 80-100°C, take them out after a water bath for 2-5 minutes, and put the taken out tea leaves in water to cool immediately. drying at 95°C until the water content is lower than 7%, to obtain decaffeinated green tea leaves;
[0030] Step 2: Preparation of Superfine Tea Powder
[0031] Put the decaffeinated green tea leaves obtained in step 1 into a pulverizer and pulverize to obtain green tea powder, which can all pass through a 100-mesh sieve, and then put the green tea powder into a grinding type superfine pulverizer to pulverize to obtain superfine tea Powder, the particle size of superfine tea powder is 5-20μm;
[0032] Step 3: Preparation of Green Tea Extract
[0033] Add the mixed solution of edible alcohol and water to the superfine tea powder according to the ratio of...
Embodiment 2
[0044] Others are the same as in Example 1, except that the superfine tea powder is extracted with pure water in step 3.
[0045]Adopt the method in GB / T8313-20083 to measure the content of tea polyphenols in this embodiment green tea liquor finished product. After diluting the green tea wine sample five times, take 1ml and add 5ml of 10% folin phenol reagent, shake well and then add 7.5% sodium carbonate solution, after adding the sample, oscillate to mix the solution evenly, after oscillating, let it stand for 60 minutes to react, the solution From the yellow-green color of folin phenol to blue, at the same time, treat the gallic acid standard solution in the same way, then measure the absorbance value of the standard substance and the sample solution at 765nm with an ultraviolet spectrophotometer, according to the concentration and light absorption of the standard substance value, draw it into a standard curve, obtain the linear equation of absorbance and concentration, and...
Embodiment 3
[0049] Others are the same as in Example 1, except that the superfine tea powder is extracted with pure edible alcohol in step 3.
[0050] Adopt the method in GB / T8313-20083 to measure the content of tea polyphenols in this embodiment green tea liquor finished product. After diluting the green tea wine sample five times, take 1ml and add 5ml of 10% folin phenol reagent, shake well and then add 7.5% sodium carbonate solution, after adding the sample, oscillate to mix the solution evenly, after oscillating, let it stand for 60 minutes to react, the solution From the yellow-green color of folin phenol to blue, at the same time, treat the gallic acid standard solution in the same way, then measure the absorbance value of the standard substance and the sample solution at 765nm with an ultraviolet spectrophotometer, according to the concentration and light absorption of the standard substance value, draw it into a standard curve, obtain the linear equation of absorbance and concentr...
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