A kind of preparation method of green tea fermentation beverage
Technical field
What the present invention relates to is a kind of processing method of beverage, specifically a kind of preparation method of green tea fermentation beverage.
Background technology
Modern scientific research shows, green tea contains a large amount of Tea Polyphenols, caffeine, lipopolysaccharides, theanine etc. and the closely-related biochemical of health, has important physiological function.Green tea has oxidation resistant effect, can make more consolidation and flexible of skin; The contained caffeine of green tea can make people vigorous, and clearheaded, thought active works together; Green tea has lowering blood-fat and reducing weight, prevents the effect of cardiovascular and cerebrovascular disease; The all right antitoxin sterilizing of green tea, it is reported, the ability that the theanine in green tea can make human body resist infection strengthens five times; In addition, green tea also has anti-decayed tooth, tasty and refreshing smelly, aid digestion, pre-anti-diarrhea, anti-dandruff, minimizing computer radiate, reduces the effects such as injury of smoking to human body.
Green tea fermentation beverage is to take green tea as primary raw material, adds fructus hordei germinatus hydrolyzate and supplements the required nutriment of strain fermentation, the fermented beverage of making through saccharomycete and the fermentation of acetic acid acetobacter.Green tea fermentation beverage is when having retained preferably the original nutritional labeling of green tea and functional component, nutrition and the functional component of fructus hordei germinatus have been increased, in addition due to the fermentation of saccharomycete and acetic acid acetobacter, a large amount of metabolites useful to human body have also been produced, thus, this beverage is that a kind of nutritive value and health care are worth higher health drink.
Summary of the invention
The preparation method of aromatic strongly fragrant, the clean taste of a kind of tea that the object of the present invention is to provide, nutritious green tea fermentation beverage.
The object of the present invention is achieved like this:
Take green tea, add the water soaking of 85~90 ℃ 2 minutes of 25 times of quality, filter to obtain millet paste and tealeaf residue, then add the water soaking tealeaf residue of 90~95 ℃ 3 minutes of 15 times of quality, filter, merge 2 millet paste standby.Fructus hordei germinatus is pulverized, crossed 20 mesh sieves, obtain fructus hordei germinatus powder, according to fructus hordei germinatus powder, mix with the ratio of green tea millet paste mass ratio 1:3,60~65 ℃ of Water Under solutions 5~7 hours, 121 ℃ of enzymes 10 minutes of going out, then, by hydrolyzate filtration, were diluted to 14~16 by filtrate
obx, obtains fructus hordei germinatus green tea hydrolyzate.
Fructus hordei germinatus green tea hydrolyzate temperature is adjusted to 25~27 ℃, add 0.1% yellow rice wine active dry yeast, under 25~27 ℃ of conditions, anaerobic fermentation is 6~8 days, after anaerobic fermentation finishes, wine is filtered, and then under 6~8 ℃ of conditions, ageing obtains green tea fermentation wine for 1 month.Inoculum concentration by 10% in green tea fermentation wine accesses acetic acid acetobacter seed liquor, mix, be placed on shaking table, under 30~32 ℃, the condition of 150~180rpm, ventilating fermentation is 7~10 days, static placement 1 month under 6~8 ℃ of conditions afterwards, then after filtration, allotment, bottling, sterilizing get product.
The present invention also comprises such feature: the preparation method of described acetic acid acetobacter seed liquor is: take 1 gram of glucose, 1 gram of yeast extract, add water and be settled to 100 milliliters, after stirring and dissolving, add in triangular flask, 121 ℃ of sterilizings 20 minutes, after being cooled to room temperature, with aseptic straw, add 6.5 milliliters of 95%(v/v again) edible ethanol, stir and obtain acetic acid acetobacter fluid nutrient medium, from inclined-plane, inoculate a ring acetic acid acetobacter in fluid nutrient medium, under 30 ℃, the condition of 150rpm, shaking table is cultivated 48 hours.
Green tea fermentation beverage of the present invention, is rich in nutrition separately and the functional component of green tea and fructus hordei germinatus, has also had the advantage of fermented beverage concurrently, is that a kind of nutritive value and health care are worth higher health drink.
Specific embodiments
The acetic acid acetobacter that the present invention adopts is purchased in Chinese industrial microorganism fungus kind preservation administrative center, is acetic acid acetobacter CICC21682.
Take 1 gram of glucose, 1 gram of yeast extract, add water and be settled to 100 milliliters, after stirring and dissolving, add in triangular flask, 121 ℃ of sterilizings 20 minutes, after being cooled to room temperature, with aseptic straw, add 6.5 milliliters of 95%(v/v again) edible ethanol, stir and obtain acetic acid acetobacter fluid nutrient medium, inoculate a ring acetic acid acetobacter from inclined-plane in fluid nutrient medium, under 30 ℃, the condition of 150rpm, shaking table is cultivated and within 48 hours, is obtained acetic acid acetobacter seed liquor.
Take green tea, add the water soaking of 90 ℃ 2 minutes of 25 times of quality, filter to obtain millet paste and tealeaf residue, then add the water soaking tealeaf residue of 95 ℃ 3 minutes of 15 times of quality, filter, merge 2 millet paste standby.Fructus hordei germinatus is pulverized, crossed 20 mesh sieves, obtain fructus hordei germinatus powder, according to fructus hordei germinatus powder, mix with the ratio of green tea millet paste mass ratio 1:3,60 ℃ of Water Under solutions 6 hours, 121 ℃ of enzymes 10 minutes of going out, then, by hydrolyzate filtration, were diluted to 15 by filtrate
obx, obtains fructus hordei germinatus green tea hydrolyzate.
Fructus hordei germinatus green tea hydrolyzate temperature is adjusted to 25 ℃, add 0.1% yellow rice wine active dry yeast, under 25 ℃ of conditions, anaerobic fermentation is 8 days, after anaerobic fermentation finishes, wine is filtered, and then under 6 ℃ of conditions, ageing obtains green tea fermentation wine for 1 month.Inoculum concentration by 10% in green tea fermentation wine accesses acetic acid acetobacter seed liquor, mix, be placed on shaking table, under 30 ℃, the condition of 150rpm, ventilating fermentation is 10 days, static placement 1 month under 6 ℃ of conditions afterwards, then after filtration, allotment, bottling, sterilizing get product.