CN111802445A - Comprehensive fruit freeze-drying processing method - Google Patents
Comprehensive fruit freeze-drying processing method Download PDFInfo
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- CN111802445A CN111802445A CN202010667528.XA CN202010667528A CN111802445A CN 111802445 A CN111802445 A CN 111802445A CN 202010667528 A CN202010667528 A CN 202010667528A CN 111802445 A CN111802445 A CN 111802445A
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- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 259
- 238000004108 freeze drying Methods 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 63
- 235000004936 Bromus mango Nutrition 0.000 claims abstract description 30
- 235000005979 Citrus limon Nutrition 0.000 claims abstract description 30
- 244000131522 Citrus pyriformis Species 0.000 claims abstract description 30
- 244000157072 Hylocereus undatus Species 0.000 claims abstract description 30
- 235000018481 Hylocereus undatus Nutrition 0.000 claims abstract description 30
- 235000014826 Mangifera indica Nutrition 0.000 claims abstract description 30
- 240000008790 Musa x paradisiaca Species 0.000 claims abstract description 30
- 244000183278 Nephelium litchi Species 0.000 claims abstract description 30
- 235000009184 Spondias indica Nutrition 0.000 claims abstract description 30
- 238000007710 freezing Methods 0.000 claims abstract description 30
- 230000008014 freezing Effects 0.000 claims abstract description 30
- 239000002274 desiccant Substances 0.000 claims abstract description 28
- 240000009088 Fragaria x ananassa Species 0.000 claims abstract description 21
- 240000007228 Mangifera indica Species 0.000 claims abstract description 16
- 235000016623 Fragaria vesca Nutrition 0.000 claims abstract description 13
- 235000011363 Fragaria x ananassa Nutrition 0.000 claims abstract description 13
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims abstract description 13
- 235000014443 Pyrus communis Nutrition 0.000 claims abstract description 13
- 235000009754 Vitis X bourquina Nutrition 0.000 claims abstract description 13
- 235000012333 Vitis X labruscana Nutrition 0.000 claims abstract description 13
- 240000006365 Vitis vinifera Species 0.000 claims abstract description 13
- 235000014787 Vitis vinifera Nutrition 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 241000220225 Malus Species 0.000 claims description 29
- 241000220324 Pyrus Species 0.000 claims description 29
- 241000219094 Vitaceae Species 0.000 claims description 17
- 235000021016 apples Nutrition 0.000 claims description 17
- 235000021015 bananas Nutrition 0.000 claims description 17
- 235000021021 grapes Nutrition 0.000 claims description 17
- 235000021017 pears Nutrition 0.000 claims description 17
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 235000021012 strawberries Nutrition 0.000 claims description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000003755 preservative agent Substances 0.000 claims description 6
- 230000002335 preservative effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 241000249058 Anthracothorax Species 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 229920002261 Corn starch Polymers 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 239000008120 corn starch Substances 0.000 claims description 3
- 235000021022 fresh fruits Nutrition 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000004067 bulking agent Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 235000016709 nutrition Nutrition 0.000 abstract description 7
- 230000035764 nutrition Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 14
- 241001093152 Mangifera Species 0.000 description 11
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 10
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 5
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- 238000004321 preservation Methods 0.000 description 1
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- 229930003231 vitamin Natural products 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/02—Dehydrating; Subsequent reconstitution
- A23B7/024—Freeze-drying, i.e. cryodessication or lyophilisation
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/02—Dehydrating; Subsequent reconstitution
- A23B7/022—Dehydrating; Subsequent reconstitution with addition of chemicals before or during drying, e.g. semi-moist products
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
The invention discloses a comprehensive fruit freeze-drying processing method, which comprises the following raw materials: the fruit freezing and freezing device comprises an apple, litchi, a pear, a mango, a lemon, a dragon fruit, a banana, a grape, a strawberry, a filling agent and a drying agent, wherein all fruits are cut into pieces, all the cut fruits are placed in a filter frame, the cut fruits are cleaned, sundries and peel attached to the fruit pieces are removed, the fruit pieces are placed in a freezing machine for freezing treatment, the fruit pieces are taken out of the freezing machine, the filling agent is uniformly sprayed on the fruit pieces, the filling agent is kept to completely wrap the surfaces of the fruit pieces, the fruit pieces which are uniformly wrapped by the filling agent are placed in the freezing machine again for freezing, the frozen fruit pieces are bagged, the drying agent is placed in the fruit bags and then sealed, air in the fruit bags is evacuated by a vacuum machine, the fruits can be effectively cut into pieces and freeze-dried, the original nutrition of the fruits is kept, and the fruits are stored for a long time.
Description
Technical Field
The invention relates to the technical field of fruit freeze-drying, in particular to a comprehensive fruit freeze-drying processing method.
Background
Fruit, referring to juicy plant fruit whose main taste is sweet and sour, is edible. The fruit not only contains rich vitamin nutrition, but also can promote digestion. Fruits are rich in vitamin C, but there are several factors that affect the vitamin C content of fruits. For example, some fruits are wrapped with paper bags during the growth process in order to prevent insect damage and sunburn, and as a result, the vitamin C content is reduced; the fruits are harvested in summer and stored in a refrigeration house, and the vitamin C content of the fruits is reduced when the fruits are sold in winter; modern households generally have refrigerators, and many people like to buy a large amount of fruits to put in. However, the longer the fruit is stored, the more vitamin C is lost.
Still other fruits are easily rotten due to mold, which is different from spoilage caused by bacteria, mold and yeast of other foods. The damaged fruits are easy to rot and comprise two aspects: the fruit itself is perishable, which is more rapid after spoilage. Fruits that were not originally perishable became perishable after mechanical injury, thus resulting in the fruit not being conducive to preservation, resulting in a freeze-dried fruit technology.
Disclosure of Invention
The invention aims to provide a comprehensive fruit freeze-drying processing method, which comprises the steps of cleaning all fruits to be processed, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, peeling lemons, dragon fruits and bananas, cutting all the fruits into blocks, putting all the cut fruits into a filter frame, cleaning the cut fruits, removing sundries and peels attached to the fruit blocks, draining excessive moisture on the fruit blocks, putting the fruit blocks into a refrigerator for freezing treatment, primarily freezing and shaping the fruit blocks, taking the fruit blocks out of the refrigerator after the fruit blocks are frozen and shaped, uniformly spraying a filling agent on the fruit blocks, rolling the fruit blocks, fully contacting the outer surfaces of the fruit blocks with the filling agent, keeping the filling agent completely wrapping the surfaces of the fruit blocks, the fruit blocks which are wrapped uniformly by the filling agent are put into the refrigerating machine again for refrigeration, the fruit blocks are completely frozen to be solid, the filling agent is completely adsorbed on the fruit blocks and cannot be separated, the frozen fruit blocks are bagged, the drying agent is put into the fruit bags and then sealed, the air in the fruit bags is pumped out by adopting a vacuum machine, the fruit can be effectively cut into blocks and freeze-dried, the original nutrition of the fruit blocks is reserved, and the fruit blocks are stored for a long time, so that the problem brought forward in the background technology is solved.
In order to achieve the purpose, the invention provides the following technical scheme: a comprehensive fruit freeze-drying processing method comprises the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 5-10 parts of apples, 3-5 parts of litchis, 5-10 parts of pears, 5-8 parts of mangoes, 1-3 parts of lemons, 2-5 parts of dragon fruits, 3-5 parts of bananas, 2-4 parts of grapes, 1-3 parts of strawberries, 0.5-1 part of filling agent and 0.2-0.5 part of drying agent; the method comprises the following steps:
the method comprises the following steps: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
step two: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
step three: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
step four: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
step five: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
step six: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
Preferably, the filler is composed of corn starch, and covers the surfaces of apples, litchis, pears, mangoes, lemons, dragon fruits, bananas, grapes and strawberries.
Preferably, the desiccant is made of calcium sulfate or calcium chloride material, and the desiccant is sealed in an independent packaging bag.
Preferably, the apples, the litchis, the pears, the mangoes, the lemons, the dragon fruits, the bananas, the grapes and the strawberries are all fresh fruits before being peeled and diced.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a comprehensive fruit freeze-drying processing method, which comprises the steps of cleaning all fruits to be processed, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, peeling lemons, dragon fruits and bananas, cutting all the fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, removing impurities and peels attached to the fruit pieces, draining excessive moisture on the fruit pieces, putting the fruit pieces into a refrigerator for freezing treatment, primarily freezing and shaping the fruit pieces, taking the fruit pieces out of the refrigerator after the fruit pieces are frozen and shaped, uniformly spraying a filling agent on the fruit pieces, rolling the fruit pieces, fully contacting the outer surfaces of the fruit pieces with the filling agent, and keeping the filling agent completely wrapping the surfaces of the fruit pieces, the fruit blocks which are wrapped uniformly by the filling agent are put into the refrigerating machine again for refrigeration, the fruit blocks are completely frozen to be solid, the filling agent is completely adsorbed on the fruit blocks and cannot be separated, the frozen fruit blocks are bagged, the drying agent is put into the fruit bags and then sealed, the air in the fruit bags is pumped out by a vacuum machine, the fruits can be effectively cut into blocks and freeze-dried, the original nutrition of the fruits is reserved, and the fruits are stored for a long time.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a comprehensive fruit freeze-drying processing method comprises the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 10 parts of apple, 5 parts of litchi, 10 parts of pear, 8 parts of mango, 3 parts of lemon, 5 parts of dragon fruit, 5 parts of banana, 4 parts of grape, 3 parts of strawberry, 0.5 part of filler and 0.2 part of desiccant. The method comprises the following steps:
the method comprises the following steps: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
step two: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
step three: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
step four: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
step five: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
step six: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
Example two:
a comprehensive fruit freeze-drying processing method comprises the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 8 parts of apple, 4 parts of litchi, 8 parts of pear, 7 parts of mango, 3 parts of lemon, 4 parts of dragon fruit, 4 parts of banana, 3 parts of grape, 3 parts of strawberry, 0.6 part of filler and 0.3 part of desiccant.
A comprehensive fruit freeze-drying processing method comprises the following steps:
the method comprises the following steps: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
step two: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
step three: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
step four: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
step five: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
step six: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
Example three:
a comprehensive fruit freeze-drying processing method comprises the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 6 parts of apple, 3 parts of litchi, 6 parts of pear, 5 parts of mango, 2 parts of lemon, 3 parts of dragon fruit, 3 parts of banana, 2 parts of grape, 2 parts of strawberry, 0.7 part of filler and 0.3 part of desiccant.
A comprehensive fruit freeze-drying processing method comprises the following steps:
the method comprises the following steps: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
step two: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
step three: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
step four: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
step five: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
step six: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
Example four:
a comprehensive fruit freeze-drying processing method comprises the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 5 parts of apple, 3 parts of litchi, 5 parts of pear, 5 parts of mango, 1 part of lemon, 2 parts of dragon fruit, 3 parts of banana, 2 parts of grape, 1 part of strawberry, 1 part of filler and 0.5 part of desiccant.
The method comprises the following steps:
the method comprises the following steps: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
step two: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
step three: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
step four: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
step five: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
step six: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
Control group:
a freeze-drying processing method of fruits comprises the following raw materials: the apple, the lychee, the pear, the mango, the lemon, the dragon fruit, the banana, the grape and the strawberry are proportioned according to the following parts by weight: 10 parts of apple, 5 parts of litchi, 10 parts of pear, 8 parts of mango, 3 parts of lemon, 5 parts of dragon fruit, 5 parts of banana, 4 parts of grape and 3 parts of strawberry.
The steps of the control combination type fruit freeze-drying processing are the same as the steps from one to six in the first embodiment.
Table one: length of freeze-drying storage and variation of nutrition for fruit
From table one, it can be seen that: has longer storage time and more nutrition retention compared with the control group.
Wherein: the filler is composed of corn starch, and covers the surfaces of apples, litchis, pears, mangos, lemons, dragon fruits, bananas, grapes and strawberries; the drying agent is made of calcium sulfate or calcium chloride material and is sealed in an independent packaging bag; apples, litchis, pears, mangos, lemons, dragon fruits, bananas, grapes and strawberries are all fresh fruits before peeling and dicing.
In conclusion, the comprehensive fruit freeze-drying processing method provided by the invention cleans all fruits to be processed, keeps the fruits clean, peels and kernels of apples, litchis, pears, mangoes and grapes, peels lemons, dragon fruits and bananas, cuts all the fruits into blocks, puts all the cut fruits into a filter frame, cleans the cut fruits, removes impurities and peels attached to the block fruits, drains excessive moisture on the fruit blocks, puts the fruit blocks into a refrigerator for freezing treatment, primarily freezes and shapes the fruit blocks, takes the fruit blocks out of the refrigerator after the fruit blocks are frozen and shaped, uniformly sprays a filling agent on the fruit blocks, rolls the fruit blocks, fully contacts the outer surfaces of the fruit blocks with the filling agent, and keeps the filling agent completely wrapping the surfaces of the fruit blocks, the fruit blocks which are wrapped uniformly by the filling agent are put into the refrigerating machine again for refrigeration, the fruit blocks are completely frozen to be solid, the filling agent is completely adsorbed on the fruit blocks and cannot be separated, the frozen fruit blocks are bagged, the drying agent is put into the fruit bags and then sealed, the air in the fruit bags is pumped out by a vacuum machine, the fruits can be effectively cut into blocks and freeze-dried, the original nutrition of the fruits is reserved, and the fruits are stored for a long time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A comprehensive fruit freeze-drying processing method is characterized by comprising the following raw materials: the preservative comprises apple, litchi, pear, mango, lemon, dragon fruit, banana, grape, strawberry, a filling agent and a drying agent, and is prepared from the following components in parts by weight: 5-10 parts of apples, 3-5 parts of litchis, 5-10 parts of pears, 5-8 parts of mangoes, 1-3 parts of lemons, 2-5 parts of dragon fruits, 3-5 parts of bananas, 2-4 parts of grapes, 1-3 parts of strawberries, 0.5-1 part of filling agent and 0.2-0.5 part of drying agent; the preparation method comprises the following steps:
s1: cleaning all fruits to be treated, keeping the fruits clean, peeling and pitting apples, litchis, pears, mangoes and grapes, and peeling lemons, dragon fruits and bananas;
s2: cutting all fruits into pieces, putting all the cut fruits into a filter frame, cleaning the cut fruits, and removing impurities and peels attached to the fruit pieces;
s3: draining off excessive water on the fruit blocks, and freezing the fruit blocks in a freezer to primarily freeze and shape the fruit blocks;
s4: after the fruit blocks are frozen and shaped, taking the fruit blocks out of the freezer, uniformly spraying the filling agent on the fruit blocks, rolling the fruit blocks to ensure that the outer surfaces of the fruit blocks are fully contacted with the filling agent, and keeping the filling agent to completely wrap the surfaces of the fruit blocks;
s5: putting the fruit blocks uniformly wrapped by the filling agent into the refrigerator again for freezing, completely freezing the fruit blocks, and enabling the filling agent to be completely adsorbed on the fruit blocks without separation;
s6: and bagging the frozen fruit pieces, sealing the fruit bags after a drying agent is put into the fruit bags, and vacuumizing the air in the fruit bags by adopting a vacuum machine.
2. The comprehensive fruit freeze-drying processing method according to claim 1, wherein the bulking agent is composed of corn starch, and is covered on the surfaces of apples, litchis, pears, mangoes, lemons, dragon fruits, bananas, grapes and strawberries.
3. The integrated fruit freeze-drying processing method according to claim 1, wherein the desiccant is made of calcium sulfate or calcium chloride material, and the desiccant is sealed in a separate packaging bag.
4. The integrated fruit freeze-drying processing method according to claim 1, wherein the apples, the litchis, the pears, the mangos, the lemons, the dragon fruits, the bananas, the grapes and the strawberries are all fresh fruits before peeling and dicing.
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| CN202010667528.XA CN111802445A (en) | 2020-07-13 | 2020-07-13 | Comprehensive fruit freeze-drying processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115769877A (en) * | 2022-11-15 | 2023-03-10 | 湖北山娃子食品有限公司 | Freeze-dried fruit block and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20201023 |