CN113057270A - Additive-free composite plant beverage and preparation process thereof - Google Patents
Additive-free composite plant beverage and preparation process thereof Download PDFInfo
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- CN113057270A CN113057270A CN202110330618.4A CN202110330618A CN113057270A CN 113057270 A CN113057270 A CN 113057270A CN 202110330618 A CN202110330618 A CN 202110330618A CN 113057270 A CN113057270 A CN 113057270A
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 241000196324 Embryophyta Species 0.000 claims abstract description 71
- 230000001954 sterilising effect Effects 0.000 claims abstract description 38
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 32
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 28
- 239000011669 selenium Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000011049 filling Methods 0.000 claims abstract description 25
- 235000011299 Brassica oleracea var botrytis Nutrition 0.000 claims abstract description 21
- 235000017647 Brassica oleracea var italica Nutrition 0.000 claims abstract description 21
- 240000003259 Brassica oleracea var. botrytis Species 0.000 claims abstract description 21
- 241000233779 Cyclocarya paliurus Species 0.000 claims abstract description 19
- 241001018563 Nekemias grossedentata Species 0.000 claims abstract description 19
- 244000189799 Asimina triloba Species 0.000 claims abstract description 18
- 235000006264 Asimina triloba Nutrition 0.000 claims abstract description 18
- 235000009467 Carica papaya Nutrition 0.000 claims abstract description 18
- 235000014360 Punica granatum Nutrition 0.000 claims abstract description 18
- 240000000851 Vaccinium corymbosum Species 0.000 claims abstract description 18
- 235000003095 Vaccinium corymbosum Nutrition 0.000 claims abstract description 18
- 235000017537 Vaccinium myrtillus Nutrition 0.000 claims abstract description 18
- 235000021014 blueberries Nutrition 0.000 claims abstract description 18
- 244000185386 Thladiantha grosvenorii Species 0.000 claims abstract description 17
- 235000011171 Thladiantha grosvenorii Nutrition 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 244000294611 Punica granatum Species 0.000 claims abstract 3
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- 239000007788 liquid Substances 0.000 claims description 18
- 238000007873 sieving Methods 0.000 claims description 14
- 239000000706 filtrate Substances 0.000 claims description 11
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- 239000004744 fabric Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 5
- 238000009924 canning Methods 0.000 claims description 3
- 150000001720 carbohydrates Chemical class 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 235000011649 selenium Nutrition 0.000 abstract description 25
- 150000001875 compounds Chemical class 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 6
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- 238000011161 development Methods 0.000 abstract description 4
- 239000004480 active ingredient Substances 0.000 abstract description 3
- 235000013373 food additive Nutrition 0.000 abstract description 3
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Images
Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/42—Preservation of non-alcoholic beverages
- A23L2/46—Preservation of non-alcoholic beverages by heating
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/52—Adding ingredients
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Abstract
The invention discloses an additive-free compound plant beverage and a preparation process thereof, wherein the additive-free compound plant beverage is prepared from momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, selenium-rich broccoli, pawpaw and water, food additives are not added into the preparation raw materials, and the plant beverage is ensured not to deteriorate within the shelf life through UHT high-temperature circulation, beverage hot filling and spray sterilization processes. The preparation process of the additive-free composite plant beverage applies a plurality of plant mixed water extraction technologies, can effectively extract active ingredients of various plants, and also conforms to the additive-free healthy living idea. The additive-free composite plant beverage has simple preparation process, and can effectively promote the development and progress of beverage industry technology.
Description
Technical Field
The invention relates to the technical field of beverage preparation. More specifically, the invention relates to a non-additive composite plant beverage and a preparation process thereof.
Background
In recent years, with the rapid development of the current food processing technology, the living standard of people is remarkably improved, the beverage becomes an essential beverage in daily life, and the beverage industry is rapidly developed. Additives are often added to beverages to improve their quality, color, flavor, taste and quality, to extend their shelf life, and to improve their processing. The intake of the additives increases the metabolic burden of the human body, and the safety of the human body is problematic if the dosage exceeds a certain dosage.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a compound plant beverage without additives and a preparation process of the compound plant beverage without additives. The compound plant beverage is prepared from fructus Siraitiae Grosvenorii, Ampelopsis grossedentata leaf, cyclocarya paliurus leaf, pomegranate, blueberry, selenium-rich broccoli, pawpaw and water, and is prepared by adding no food additive, and performing UHT high-temperature circulation, hot-filling and spray sterilization processes to ensure that the plant beverage does not deteriorate within the shelf life. The preparation method of the additive-free composite plant beverage applies a plurality of plant mixed water extraction technologies, can effectively extract active ingredients of various plants, and also conforms to the additive-free healthy living idea. The preparation process of the additive-free composite plant beverage is simple, but the required equipment and the required working procedures are complex, so that a certain technical barrier is provided in the technical field of beverages, and the development and progress of the beverage industry technology can be effectively promoted.
To achieve these objects and other advantages in accordance with the present invention, there is provided an additive-free composite plant beverage prepared from the following raw materials in weight percent: 25-45 parts of momordica grosvenori, 18-38 parts of ampelopsis grossedentata leaves, 9-15 parts of cyclocarya paliurus leaves, 8-12 parts of pomegranate, 4-6 parts of blueberry, 2-6 parts of selenium-enriched broccoli and 2-4 parts of pawpaw.
Preferably, the selenium content of the selenium-rich broccoli is more than or equal to 1000 mg/kg.
Preferably, the selenium content in the composite plant beverage is maintained at 10-50 mug/100 mL.
Preferably, the pH value of the compound plant beverage is less than 4.5.
Preferably, the detected amount of the carbohydrate in the composite plant beverage is less than or equal to 0.5g/100 mL.
The invention provides a preparation process of an additive-free composite plant beverage, which comprises the following steps in parts by weight:
adding RO pure water preheated to 70-80 ℃ into an extraction tank;
adding momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, broccoli and pawpaw into an extraction tank, wherein the mass ratio of the liquid to the liquid is 1: 50-80;
continuously heating to stabilize the temperature at 70-80 ℃, and extracting for 50-70 min;
quickly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and cooling the filtrate to room temperature;
centrifuging, taking supernatant, and adding RO pure water until the mass ratio of feed liquid is 1: 150-200, and the pH value reaches 4.2-4.5;
sterilizing, filling, secondary sterilizing, cooling, and packaging.
Preferably, the centrifugation is carried out in a high-speed centrifuge, and the rotating speed of the high-speed centrifuge is 3000-5000 r/min.
Preferably, a UHT ultrahigh-temperature instantaneous sterilizer is adopted for sterilization, the temperature is 100-125 ℃ in a UHT circulating pipeline, and the time is 7-10 s.
Preferably, the canning is carried out in a hot filling machine, and the temperature is 70-80 ℃.
Preferably, the secondary sterilization is carried out in a sterilization kettle at the temperature of 80-85 ℃, and the spraying sterilization is carried out for 35-50 min;
the cooling is conveyed by conveyor ventilation.
The invention at least comprises the following beneficial effects:
the compound plant beverage is prepared from fructus Siraitiae Grosvenorii, Ampelopsis grossedentata leaf, cyclocarya paliurus leaf, fructus Punicae Granati, fructus Myrtilli, selenium-rich stigma croci Sativi, fructus Chaenomelis and water, and is prepared by adding no food additive;
the plant beverage is ensured not to deteriorate within the shelf life through UHT high-temperature circulation, beverage hot filling and spray sterilization processes;
the preparation method of the additive-free composite plant beverage applies a mixed water extraction technology of various plants, can effectively extract active ingredients of various plants, and also conforms to the additive-free healthy living idea;
the additive-free composite plant beverage is simple in preparation process, but complex in required equipment and process, stable functional beverage can be prepared by using a formula with a reasonable proportion, a certain technical barrier is provided in the technical field of beverage, and technical development and progress of the beverage industry can be effectively promoted.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic flow chart of the preparation process of the compound plant beverage without additives.
Detailed Description
The invention provides an additive-free composite plant beverage which is prepared from the following raw materials in percentage by weight: 25-45 parts of momordica grosvenori, 18-38 parts of ampelopsis grossedentata leaves, 9-15 parts of cyclocarya paliurus leaves, 8-12 parts of pomegranate, 4-6 parts of blueberry, 2-6 parts of selenium-enriched broccoli and 2-4 parts of pawpaw.
The selenium content of the selenium-rich broccoli is more than or equal to 1000 mg/kg.
The selenium content in the composite plant beverage is maintained at 10-50 mug/100 mL.
The pH value of the compound plant beverage is less than 4.5.
The detection amount of the carbohydrate in the composite plant beverage is less than or equal to 0.5g/100 mL.
The invention provides a preparation process of an additive-free composite plant beverage, which comprises the following steps in parts by weight as shown in figure 1:
adding RO pure water preheated to 70-80 ℃ into an extraction tank;
adding momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, broccoli and pawpaw into an extraction tank, wherein the mass ratio of the liquid to the liquid is 1: 50-80;
continuously heating to stabilize the temperature at 70-80 ℃, and extracting for 50-70 min;
quickly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and cooling the filtrate to room temperature;
centrifuging, taking supernatant, and adding RO pure water until the mass ratio of feed liquid is 1: 150-200, and the pH value reaches 4.2-4.5;
sterilizing, filling, secondary sterilizing, cooling, and packaging.
The centrifugation is carried out in a high-speed centrifuge, and the rotating speed of the high-speed centrifuge is 3000-5000 r/min.
And a UHT ultrahigh-temperature instantaneous sterilizer is adopted for sterilization, and the temperature is 100-125 ℃ and the time is 7-10 s in a UHT circulating pipeline.
The canning is carried out in a hot filling machine at the temperature of 70-80 ℃.
Performing secondary sterilization in a sterilization kettle at the temperature of 80-85 ℃, and performing spray sterilization for 35-50 min;
the cooling is conveyed by conveyor ventilation.
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
< example 1>
An additive-free composite plant beverage is prepared from the following raw materials in parts by weight: 25 parts of momordica grosvenori, 18 parts of ampelopsis grossedentata leaves, 9 parts of cyclocarya paliurus leaves, 8 parts of pomegranate, 4 parts of blueberry, 2 parts of selenium-rich broccoli and 2 parts of pawpaw.
A preparation process of an additive-free compound plant beverage comprises the following steps:
1) feeding: adding RO pure water heated to 70 ℃ in advance into an extraction tank;
putting momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, selenium-rich broccoli and pawpaw into an extraction tank according to the weight parts, wherein the mass ratio of the feed liquid is 1: 50;
2) extraction and filtration: continuously heating, keeping the temperature at 70 deg.C, extracting for 50min, rapidly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and collecting filtrate to storage tank;
3) centrifuging: cooling the filtrate in the storage tank to room temperature, passing through a high-speed centrifuge at 3000r/min, and loading the supernatant into a blending tank;
4) blending: adding the supernatant in the blending cylinder, adding RO pure water until the mass ratio of the feed liquid is 1:150, monitoring the pH value in the process of continuously adding water, and stopping adding water when the pH value reaches 4.2-4.5;
5) performing high-temperature instantaneous sterilization by using an UHT ultrahigh-temperature instantaneous sterilizer at 100 ℃ for 7s in an UHT circulating pipeline;
6) filling: performing hot filling in a hot filling machine at 70 ℃;
7) secondary sterilization: after filling, the beverage enters a sterilization kettle, the temperature is 80 ℃, and the spraying sterilization time is 35 min;
8) cooling and packaging: and (5) cooling the materials through the ventilation and conveying of the conveying belt until the materials are packed and stacked by a packing machine.
< example 2>
An additive-free composite plant beverage is prepared from the following raw materials in parts by weight: 45 parts of momordica grosvenori, 38 parts of ampelopsis grossedentata leaves, 15 parts of cyclocarya paliurus leaves, 12 parts of pomegranate, 6 parts of blueberry, 6 parts of selenium-rich broccoli and 4 parts of pawpaw.
A preparation process of an additive-free compound plant beverage comprises the following steps:
1) feeding: adding RO pure water heated to 80 ℃ in advance into an extraction tank;
putting momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, selenium-rich broccoli and pawpaw into an extraction tank according to the weight parts, wherein the mass ratio of the feed liquid is 1: 80;
2) extraction and filtration: continuously heating, keeping the temperature at 80 deg.C, extracting for 70min, rapidly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and collecting filtrate to storage tank;
3) centrifuging: cooling the filtrate in the storage tank to room temperature, then passing through a high-speed centrifuge for 5000r/min, and loading the supernatant into a blending tank;
4) blending: adding the supernatant in the blending cylinder, adding RO pure water until the mass ratio of the feed liquid is 1:200, monitoring the pH value in the process of continuously adding water, and stopping adding water when the pH value reaches 4.2-4.5;
5) performing high-temperature instantaneous sterilization by using an UHT ultrahigh-temperature instantaneous sterilizer at 125 ℃ for 10s in an UHT circulating pipeline;
6) filling: performing hot filling in a hot filling machine at 80 ℃;
7) secondary sterilization: after filling, the beverage enters a sterilization kettle, the temperature is 85 ℃, and the spraying sterilization time is 50 min;
8) cooling and packaging: and (5) cooling the materials through the ventilation and conveying of the conveying belt until the materials are packed and stacked by a packing machine.
< example 3>
An additive-free composite plant beverage is prepared from the following raw materials in parts by weight: 30 parts of momordica grosvenori, 24 parts of ampelopsis grossedentata leaves, 12 parts of cyclocarya paliurus leaves, 10 parts of pomegranate, 5 parts of blueberry, 4 parts of selenium-rich broccoli and 3 parts of pawpaw.
A preparation process of an additive-free compound plant beverage comprises the following steps:
1) feeding: adding RO pure water heated to 75 ℃ in advance into an extraction tank;
putting momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, selenium-rich broccoli and pawpaw into an extraction tank according to the weight parts, wherein the mass ratio of the feed liquid is 1: 60;
2) extraction and filtration: continuously heating, keeping the temperature at 75 deg.C, extracting for 60min, rapidly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and collecting filtrate to storage tank;
3) centrifuging: cooling the filtrate in the storage tank to room temperature, passing through a high-speed centrifuge for 3500r/min, and loading the supernatant into a blending tank;
4) blending: adding the supernatant in the blending cylinder, adding RO pure water until the mass ratio of the feed liquid is 1:160, monitoring the pH value in the process of continuously adding water, and stopping adding water when the pH value reaches 4.2-4.5;
5) performing high-temperature instantaneous sterilization by using an UHT ultrahigh-temperature instantaneous sterilizer at the temperature of 110 ℃ for 8s in a UHT circulating pipeline;
6) filling: performing hot filling in a hot filling machine at 75 ℃;
7) secondary sterilization: after filling, the beverage enters a sterilization kettle, the temperature is 82 ℃, and the spray sterilization time is 40 min;
8) cooling and packaging: and (5) cooling the materials through the ventilation and conveying of the conveying belt until the materials are packed and stacked by a packing machine.
< example 4>
An additive-free composite plant beverage is prepared from the following raw materials in parts by weight: 35 parts of momordica grosvenori, 32 parts of ampelopsis grossedentata leaves, 14 parts of cyclocarya paliurus leaves, 11 parts of pomegranate, 5 parts of blueberry, 5 parts of selenium-rich broccoli and 3 parts of pawpaw.
A preparation process of an additive-free compound plant beverage comprises the following steps:
1) feeding: adding RO pure water heated to 75 ℃ in advance into an extraction tank;
putting momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, selenium-rich broccoli and pawpaw into an extraction tank according to the weight parts, wherein the mass ratio of the feed liquid is 1: 70;
2) extraction and filtration: continuously heating, keeping the temperature at 75 deg.C, extracting for 60min, rapidly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and collecting filtrate to storage tank;
3) centrifuging: cooling the filtrate in the storage tank to room temperature, passing through a high-speed centrifuge 4500r/min, and loading the supernatant into a blending tank;
4) blending: adding the supernatant in the blending cylinder, adding RO pure water until the mass ratio of the feed liquid is 1:180, monitoring the pH value in the process of continuously adding water, and stopping adding water when the pH value reaches 4.2-4.5;
5) performing high-temperature instantaneous sterilization by using an UHT ultrahigh-temperature instantaneous sterilizer at 115 ℃ for 10s in an UHT circulating pipeline;
6) filling: performing hot filling in a hot filling machine at 80 ℃;
7) secondary sterilization: after filling, the beverage enters a sterilization kettle, the temperature is 85 ℃, and the spraying sterilization time is 45 min;
8) cooling and packaging: and (5) cooling the materials through the ventilation and conveying of the conveying belt until the materials are packed and stacked by a packing machine.
< comparative example 1>
The difference between the additive-free compound plant beverage and the preparation process thereof in reference to example 2 is that the additive-free compound plant beverage is prepared from the following raw materials in parts by weight: 50 parts of momordica grosvenori, 40 parts of ampelopsis grossedentata leaves, 20 parts of cyclocarya paliurus leaves, 15 parts of pomegranate, 8 parts of blueberry, 8 parts of selenium-rich broccoli and 4 parts of pawpaw.
< comparative example 2>
The difference between the additive-free compound plant beverage and the preparation process thereof in reference to example 2 is that the additive-free compound plant beverage is prepared from the following raw materials in parts by weight: 20 parts of momordica grosvenori, 15 parts of ampelopsis grossedentata leaves, 6 parts of cyclocarya paliurus leaves, 6 parts of pomegranate, 4 parts of blueberry, 1 part of selenium-rich broccoli and 2 parts of pawpaw.
< comparative example 3>
A non-additive composite plant beverage and process for its preparation as described in reference to example 2, except that no UHT ultra high temperature flash sterilizer was used for sterilization.
< comparative example 4>
Referring to the additive-free composite plant beverage and the preparation process thereof in example 2, the difference is that normal temperature RO pure water is adopted in the feeding process.
< test example 1>
The stability of the composite plant beverages of examples 1 to 4 and comparative examples 1 to 2 was measured at constant temperature and humidity, the composite plant beverages were allowed to stand at 25 ℃ under a humidity of 80% RH for 5 days, and the index of the composite plant beverage was measured after 5 days, and the measurement results are shown in table 1.
TABLE 1
| Index (I) | Appearance of the product | Smell of nourishing | pH | Precipitate |
| Whether it is a uniform transparent liquid | Whether or not there is peculiar smell for removing nourishing smell | 4.5～5 | Visually observing whether there is precipitate | |
| Example 1 | Is that | Is free of | 4.75 | Is free of |
| Example 2 | Is that | Is free of | 4.54 | Is free of |
| Example 3 | Is that | Is free of | 4.6 | Is free of |
| Example 4 | Is that | Is free of | 4.8 | Is free of |
| Comparative example 1 | Whether or not | Is provided with | 3.9 | Is provided with |
| Comparative example 2 | Whether or not | Is free of | 34 | Is provided with |
As can be seen from Table 1, the stability of the non-additive composite plant beverage prepared in the examples 1-4 is better than that of the comparative examples 1 and 2, and the functional beverage prepared by the formula of the composite plant beverage with reasonable proportion is more stable.
< test example 2>
The shelf lives of the composite plant beverages of examples 1-4 and comparative example 3 were measured, and the measurement results are shown in table 2.
TABLE 2
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 3 | |
| Shelf life (Tian) | 30 | 31 | 32 | 31 | 15 |
As can be seen from Table 2, the shelf life of the compound plant beverage without additives in examples 1-4 is longer than that of comparative example 3, which shows that the shelf life of the compound plant beverage can be prolonged by adopting a UHT ultrahigh temperature instant sterilizer for high temperature instant sterilization without additives.
< test example 3>
The selenium components of the plants extracted in examples 1 to 4 and comparative example 4 were detected by the method described in "Chinese pharmacopoeia", and the detection results are shown in Table 3.
TABLE 3
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 4 | |
| Selenium content mg/L | 1.88 | 2.15 | 2.03 | 1.75 | 0.92 |
As can be seen from table 3, the selenium content in the non-additive composite plant beverages of examples 1 to 4 is greater than that in comparative example 4, which indicates that the preparation process of the present application is beneficial to improving the extraction rate of the selenium content.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable to various fields of endeavor for which the invention may be embodied with additional modifications as would be readily apparent to those skilled in the art, and the invention is therefore not limited to the details given herein and to the embodiments shown and described without departing from the generic concept as defined by the claims and their equivalents.
Claims (10)
1. The additive-free composite plant beverage is characterized by being prepared from the following raw materials in parts by weight: 25-45 parts of momordica grosvenori, 18-38 parts of ampelopsis grossedentata leaves, 9-15 parts of cyclocarya paliurus leaves, 8-12 parts of pomegranate, 4-6 parts of blueberry, 2-6 parts of selenium-enriched broccoli and 2-4 parts of pawpaw.
2. The additive-free composite plant beverage according to claim 1, wherein the selenium-rich broccoli content is not less than 1000 mg/kg.
3. The additive-free composite plant beverage according to claim 1, wherein the selenium content in the composite plant beverage is maintained at 10-50 μ g/100 mL.
4. The additive-free composite plant beverage according to claim 1, wherein the pH of the composite plant beverage is less than 4.5.
5. The additive-free composite plant beverage according to claim 1, wherein the detected amount of carbohydrate in the composite plant beverage is less than or equal to 0.5g/100 mL.
6. The preparation process of the additive-free composite plant beverage according to any one of claims 1 to 5, which comprises the following steps in parts by weight:
adding RO pure water preheated to 70-80 ℃ into an extraction tank;
adding momordica grosvenori, ampelopsis grossedentata leaves, cyclocarya paliurus leaves, pomegranate, blueberry, broccoli and pawpaw into an extraction tank, wherein the mass ratio of the liquid to the liquid is 1: 50-80;
continuously heating to stabilize the temperature at 70-80 ℃, and extracting for 50-70 min;
quickly sieving with 80 mesh sieve, sieving with 150 mesh filter cloth, and cooling the filtrate to room temperature;
centrifuging, taking supernatant, and adding RO pure water until the mass ratio of feed liquid is 1: 150-200, and the pH value reaches 4.2-4.5;
sterilizing, filling, secondary sterilizing, cooling, and packaging.
7. The process for preparing an additive-free composite plant beverage according to claim 6, wherein the centrifugation is performed in a high-speed centrifuge, and the rotation speed of the high-speed centrifuge is 3000 to 5000 r/min.
8. The preparation process of the additive-free composite plant beverage according to claim 6, wherein the sterilization adopts an UHT ultra-high temperature instant sterilizer, the temperature in an UHT circulating pipeline is 100-125 ℃, and the time is 7-10 s.
9. The process for preparing the additive-free composite plant beverage according to claim 6, wherein the canning is carried out in a hot filling machine at a temperature of 70-80 ℃.
10. The preparation process of the additive-free composite plant beverage according to claim 6, wherein the secondary sterilization is carried out in a sterilization kettle at a temperature of 80-85 ℃ for 35-50 min by spraying;
the cooling is conveyed by conveyor ventilation.
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