Summary of the invention
For vacancy and the consumption demand of existing market, the technical problem to be solved in the present invention is to provide a kind of preparation method of Negundo Chastetree Leaf caffein, this method process stabilizing, simple to operate, be easy to grasp, free of contamination Negundo Chastetree Leaf natural resources is processed into and drinks drink easily, not only enrich drink kind, and improve the economic worth of Negundo Chastetree Leaf.
The present invention solves the technical scheme that its technical problem takes: a kind of preparation method of Negundo Chastetree Leaf caffein, is characterized in that: adopt following steps:
A, raw material prepare: pluck fresh, leaf age at the Negundo Chastetree Leaf of 15-20 days, clean water tender leaf surface, is filtered dry moisture, the bar of growth 1-2cm, wide 0.4-0.6cm, for subsequent use;
B, color retention: Negundo Chastetree Leaf bar is put into the citric acid solution that concentration is 0.06-0.1%, soak 2-3 hour, soaks and terminate rear clear water rinsing, drain away the water, by color retention, original color and luster of tender leaf can not only be kept, the active component in sampling tea can also be improved into;
C, extraction heat: be placed in weight 3-4 water doubly decoct protecting the Negundo Chastetree Leaf bar after look, and add the sodium ascorbate of Negundo Chastetree Leaf bar weight 0.1-0.3%, extraction temperature controls as 80-90 DEG C, time controling is 20-30min, repeat to decoct 3-4 time, decoction liquor is mixed, filters obtained extraction heat liquid and Negundo Chastetree Leaf first slag;
D, ultrasonic wave extract: send in ultrasonic extraction kettle by the Negundo Chastetree Leaf first slag after being filtered dry, and add Negundo Chastetree Leaf first slag weight 2-3 pure water doubly, setting ultrasonic frequency 40-50kHz, keep extracting pot constant temperature 60-70 DEG C, through extracting 30-40min, releasing and extract juice and with centrifugal filtration, obtain extract and Negundo Chastetree Leaf slag, extracted twice, fully can retain the nutritional labeling in raw material;
E, pulverizing: the Negundo Chastetree Leaf slag after being filtered dry is carried out ultra-fine grinding process, granularity is 180-200 μm, obtained Negundo Chastetree Leaf powder;
F, mixing: heat-obtaining extract 55-70 weight portion, extract 20-30 weight portion, Negundo Chastetree Leaf powder 10-15 weight portion, fully mix, obtained mixed liquor;
G, lyophilization: by mixed liquor under-20 ~-15 DEG C of conditions, freezing 4-6 hour, presses 6-8kg/m by the mixed liquor after freezing in useful load
2, operating pressure 40-60Pa, resolve pressure 20-30Pa, temperature 35-40 DEG C condition under dry, obtained Negundo Chastetree Leaf caffein, lyophilization can reduce the infringement to raw material nutriment, reduces the loss of nutriment;
H, packaging: Negundo Chastetree Leaf caffein food-grade packaging material are packed, enters in aeration-drying environment and store.
Beneficial effect: this method make Negundo Chastetree Leaf caffein with the Negundo Chastetree Leaf extensively existed for raw material, reduce production cost, by extraction heat and ultrasonic wave extraction process, fully can retain the active material of raw material, adopt the method for lyophilization, decrease the loss of nutriment, improve the utilization rate of raw material, finished product caffein has heat-clearing of inducing sweat, the health-care efficacies such as eliminating damp, detoxifying.
Detailed description of the invention
Embodiment 1: a kind of preparation method of Negundo Chastetree Leaf caffein, is characterized in that: adopt following steps:
A, raw material prepare: pluck fresh, leaf age at the Negundo Chastetree Leaf of 15 days, clean water tender leaf surface, is filtered dry moisture, the bar of growth 1cm, wide 0.4cm, for subsequent use;
B, color retention: Negundo Chastetree Leaf bar is put into the citric acid solution that concentration is 0.06%, soak 3 hours, soaks and terminate rear clear water rinsing, drain away the water, by color retention, original color and luster of tender leaf can not only be kept, the active component in sampling tea can also be improved into;
C, extraction heat: 5kg is protected the Negundo Chastetree Leaf bar after look and be placed in the water of 15kg and decoct, and add the sodium ascorbate of 0.005kg, it is 80 DEG C that extraction temperature controls, time controling is 30min, repeat decoction 4 times, decoction liquor is mixed, filter obtained extraction heat liquid and Negundo Chastetree Leaf first slag;
D, ultrasonic wave extract: the Negundo Chastetree Leaf first slag after being filtered dry by 2kg is sent in ultrasonic extraction kettle, and add the pure water of 4kg, setting ultrasonic frequency 40kHz, keep extracting pot constant temperature 70 DEG C, through extracting 30min, releasing and extract juice and with centrifugal filtration, obtain extract and Negundo Chastetree Leaf slag, extracted twice, fully can retain the nutritional labeling in raw material;
E, pulverizing: the Negundo Chastetree Leaf slag after being filtered dry is carried out ultra-fine grinding process, granularity is 180 μm, obtained Negundo Chastetree Leaf powder;
F, mixing: heat-obtaining extract 6kg, extract 3kg, Negundo Chastetree Leaf powder 1kg, fully mix, obtained mixed liquor;
G, lyophilization: by mixed liquor under-20 DEG C of conditions, freezing 4 hours, press 6kg/m by the mixed liquor after freezing in useful load
2, operating pressure 40Pa, resolve pressure 20Pa, temperature 40 DEG C condition under dry, obtained Negundo Chastetree Leaf caffein, lyophilization can reduce the infringement to raw material nutriment, reduces the loss of nutriment;
H, packaging: Negundo Chastetree Leaf caffein food-grade packaging material are packed, enters in aeration-drying environment and store.
Embodiment 2: a kind of preparation method of Negundo Chastetree Leaf caffein, is characterized in that: adopt following steps:
A, raw material prepare: pluck fresh, leaf age at Negundo Chastetree Leaf, buckwheat leaf, the feed with paper-mulberry leaf of 18 days, clean water tender leaf surface, is filtered dry moisture, the bar of growth 1.5cm, wide 0.5cm, for subsequent use;
B, color retention: after 4kg Negundo Chastetree Leaf bar, 1kg buckwheat leaf bar, 1kg feed with paper-mulberry leaf bar are mixed, obtained raw material leaf, put into the citric acid solution that concentration is 0.08%, soak 2.5 hours, immersion terminates rear clear water rinsing, drains away the water, passes through color retention, original color and luster of tender leaf can not only be kept, the active component in sampling tea can also be improved into;
C, extraction heat: 4kg is protected the raw material leaf bar after look and be placed in the water of 14kg and decoct, and add the sodium ascorbate of 0.008kg, it is 85 DEG C that extraction temperature controls, time controling is 25min, repeat decoction 4 times, decoction liquor is mixed, filter obtained extraction heat liquid and raw material leaf first slag;
D, ultrasonic wave extract: the raw material leaf first slag after being filtered dry by 2kg is sent in ultrasonic extraction kettle, and add the pure water of 5kg, setting ultrasonic frequency 45kHz, keep extracting pot constant temperature 65 DEG C, through extracting 35min, releasing and extract juice and with centrifugal filtration, obtain extract and raw material leaf slag, extracted twice, fully can retain the nutritional labeling in raw material;
E, pulverizing: the raw material leaf slag after being filtered dry is carried out ultra-fine grinding process, and granularity is 190 μm, obtained raw material leaf powder;
F, mixing: heat-obtaining extract 5.5kg, extract 3kg, Negundo Chastetree Leaf powder 1.2kg, HFCS 0.3kg, fully mix, obtained mixed liquor;
G, lyophilization: by mixed liquor under-18 DEG C of conditions, freezing 5 hours, press 7kg/m by the mixed liquor after freezing in useful load
2, operating pressure 50Pa, resolve pressure 25Pa, temperature 38 DEG C condition under dry, obtained Negundo Chastetree Leaf caffein, lyophilization can reduce the infringement to raw material nutriment, reduces the loss of nutriment;
H, packaging: Negundo Chastetree Leaf caffein food-grade packaging material are packed, enters in aeration-drying environment and store.
Embodiment 3: a kind of preparation method of Negundo Chastetree Leaf caffein, is characterized in that: adopt following steps:
A, raw material prepare: pluck fresh, leaf age 20 days Negundo Chastetree Leaf, loguat leaf, mulberry leaves, honeysuckle, clean water tender leaf surface, is filtered dry moisture, the bar of growth 2cm, wide 0.6cm, for subsequent use;
B, color retention: after the honeysuckle of 5kg Negundo Chastetree Leaf bar, 0.5kg loguat leaf bar, 1kg mulberry leaves bar, 0.5kg is mixed, obtained raw material leaf, put into the vitamin c solution that concentration is 0.1%, soak 2 hours, immersion terminates rear clear water rinsing, drains away the water, passes through color retention, original color and luster of tender leaf can not only be kept, the active component in sampling tea can also be improved into;
C, extraction heat: 5kg is protected the raw material leaf bar after look and be placed in the water of 20kg and decoct, and add the sodium ascorbate of 0.015kg, it is 90 DEG C that extraction temperature controls, time controling is 20min, repeat decoction 3 times, decoction liquor is mixed, filter obtained extraction heat liquid and raw material leaf first slag;
D, ultrasonic wave extract: the raw material leaf first slag after being filtered dry by 2kg is sent in ultrasonic extraction kettle, and add the pure water of 6kg, setting ultrasonic frequency 50kHz, keep extracting pot constant temperature 70 DEG C, through extracting 30min, releasing and extract juice and with centrifugal filtration, obtain extract and raw material leaf slag, extracted twice, fully can retain the nutritional labeling in raw material;
E, pulverizing: the raw material leaf slag after being filtered dry is carried out ultra-fine grinding process, and granularity is 200 μm, obtained Negundo Chastetree Leaf powder;
F, mixing: heat-obtaining extract 5.5kg, extract 2kg, Negundo Chastetree Leaf powder 1kg, kudzuvine root juice 0.5kg, honey 0.5kg, Sucus Phyllanthi 0.3kg, Snakegourd Fruit juice 0.2kg, fully mix, obtained mixed liquor;
G, lyophilization: by mixed liquor under-15 DEG C of conditions, freezing 6 hours, press 8kg/m by the mixed liquor after freezing in useful load
2, operating pressure 60Pa, resolve pressure 30Pa, temperature 35 DEG C condition under dry, obtained Negundo Chastetree Leaf caffein, lyophilization can reduce the infringement to raw material nutriment, reduces the loss of nutriment;
H, packaging: Negundo Chastetree Leaf caffein food-grade packaging material are packed, enters in aeration-drying environment and store.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.