CN103704851A - Method for preparing lyophilized products - Google Patents
Method for preparing lyophilized products Download PDFInfo
- Publication number
- CN103704851A CN103704851A CN201310720906.6A CN201310720906A CN103704851A CN 103704851 A CN103704851 A CN 103704851A CN 201310720906 A CN201310720906 A CN 201310720906A CN 103704851 A CN103704851 A CN 103704851A
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- freeze
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- drying
- raw material
- vacuum
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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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
- A23L3/44—Freeze-drying
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- Nutrition Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Drying Of Solid Materials (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
The invention discloses a method for preparing lyophilized products. The method is used for overcoming the defects, such as color change, flavor reversion, nutritional ingredient loss and no reduction from dry shrinkage of existing medicinal materials or food materials processed by a traditional dehydration method. The lyophilized products provided by the invention are prepared from raw materials by the following steps: sorting, cleaning with skin, draining, slicing and traying, pre-freezing, vacuum freeze drying, individually restoring the original shape and packaging to obtain finished products. The products prepared by the method disclosed by the invention not only have the advantages of lyophilized products, but also keep the color, fragrance, taste, shape and original ecological nutritional ingredients of the products to the maximum; no additive is added in the whole processing process of the products, and finally, the products are individually restored and packaged to well indicate the original ecology of the products. Meanwhile, the water content is low to effectively prolong the quality guarantee period of the products. Therefore, the products are truly green and healthy products.
Description
Technical field
The present invention is specifically related to the preparation method of a class freeze-drying prods.
Background technology
Existing fresh medicinal material or food materials, adopt traditional handicraft handling ease to cause nutritional labeling to be lost, and quality declines, the problems such as dry product matter is hard, inconvenient eating.When storing, easily occur going mouldy, rot, iso-metamorphism phenomenon, have a strong impact on nutritive value and the pot-life of medicinal material or food materials, can not meet the requirement of people to high-quality life.And even more existing products have adopted freeze-dry process processing, final product is cracked mixed and disorderly, is not easy a minute evident quality.
Summary of the invention
The object of the present invention is to provide the preparation method of a class freeze-drying prods, solve variable color that existing medicinal material or food materials bring because of conventional dehydration method, spoiled, nutrient loss, drying shrinkage and the defect such as cannot reduce.There is the shape, color, the nutritional labeling that keep raw material; Product rehydration is good, quality light, be convenient to the advantages such as edible and storage.In the process of whole product, do not need to add any additive, by last single also original packing, more can embody its ecosystem.Therefore, this series products is green health truly.
The present invention is achieved through the following technical solutions:
The preparation method of one class freeze-drying prods, described freeze-drying prods is through meticulously selecting, do not remove the peel cleaning draining, section paving dish, pre-freeze, vacuum freeze drying, single and original packing is finished product by raw material.The present invention is dried after adopting section, has both shortened drying time, finally goes back the original complete that raw material is guaranteed again in original packing, has guaranteed the ecosystem of raw material.Wherein, the meaning of a class is a variety of.
Further, described raw material is rhizoma Gastrodiae, matsutake, agate card, pseudo-ginseng, ginseng, American Ginseng, rhodiola root, bacterium mushroom class, high-quality fruits and vegetables class etc.
Again further, the concrete preparation method of a described class freeze-drying prods is as follows: (1) by fresh raw material through selected removal of impurities, remove the earth impurity adhering on raw material and select fracture, damage by worms, rotten product; (2) with mobile drinking water, clean one by one, draining 5-10 minute, longitudinally cutting is the sheet of thickness 5～6mm one by one, one by one paving dish; (3) pre-freeze: raw material is placed in pre-freeze storehouse and keeps 0.5～1h, make material inside and outside temperature and pre-freeze lab environment temperature reach balance; The rapid prefreezing of material to central temperature is reduced to-40～-30 ℃; Vacuum freeze drying: the material of prefreezing is placed in rapidly to keep vacuum in vacuum freeze drier be 10～40pa, lyophilization is carried out in temperature of charge-30～-10 ℃; In maximum temperature, be finally that at 25 ℃～40 ℃, parsing-desiccation to moisture is 3～5%; After finishing, freeze-drying passes into drying nitrogen pressure release; (4) vacuum packaging or be filled with the single also original packing of nitrogen under specific terms of packing.
Further, the condition of packing is that temperature is 20～26 ℃, and relative humidity is under 15-25% condition.
The present invention has the following advantages and beneficial effect:
The product that the present invention prepares, not only has advantages of freeze-drying prods, and color, shape and the ecosystem nutritional labeling of retained product to greatest extent; Moisture content is low simultaneously, can effectively extend the shelf life.And in preparation process, adopt the fixing reduction of single product to be ecosystem, and reflect intuitively product original appearance, it is good and bad that consumer is easy to minute evident; While adopting in addition the present invention to produce freeze-drying prods, material is cut to the distillation that sheet is easy to moisture, has shortened freeze-drying time, thereby effectively saved cost; Added value of product that the product of simultaneously preparing by the present invention has had good rehydration, instant, real increase.
The specific embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but embodiments of the present invention are not limited to this.
Embodiment 1
By fresh matsutake picking of raw material removal of impurities, will there is the matsutake of earth, with cutter, remove the impurity such as earth that adhere on raw material, do not destroy raw material shape as far as possible, guarantee raw material integrality; The matsutake of pick out fracture, damage by worms, rotten and cap has been opened; Then cleaning one by one, specifically adopts the drinking water that flows to clean, surperficial matsutake mycelia can not be washed off, draining 5-10 minute, then by matsutake one by one longitudinal section thickness be 5mm, then paving dish one by one; Subsequently the matsutake after paving dish is placed in pre-freeze storehouse and keeps 0.5～1h, make material inside and outside temperature and pre-freeze lab environment temperature reach balance; The rapid prefreezing of material to central temperature is reduced to-35 ℃, and keep more than 2 hours; The matsutake of prefreezing is placed in rapidly in vacuum freeze drier, and maintenance vacuum is 10-40pa, and temperature of charge carries out lyophilization for-18 ℃, then take maximum temperature as 40 ℃ of parsing-desiccations to moisture be 3-5%; After finishing, freeze-drying passes into drying nitrogen pressure release; In temperature, be then 20～26 ℃, under the condition that humidity is 15-25%, pack, matsutake is reduced one by one fixingly when packing with special bar, according to packing specification, carrying out vacuum or nitrogen-filled packaging, assurance moisture content is in 5%.Wherein packing is will guarantee to pack in clean area.The meaning of reduction is that tableted matsutake is scrabbled up to an integral body more one by one, then by special bar, is fixed; Special bar is: reach the paper slip, bonding jumper of food sanitation standard or other can be fixed by fixing packaging material, again with edible shrink film or the good aluminum plated PET/PVDC/PE sandwich diaphragm item packaging of employing gas barrier property, in packing, add silica-gel desiccant simultaneously, guarantee the shelf-life of product.
Above-mentioned cutter is stainless steel circular arc, and object is aobvious circular when removing matsutake root earth, more can guarantee the ecosystem shape of matsutake.
Embodiment 2
By fresh rhizoma Gastrodiae picking of raw material removal of impurities, pick out fracture, damage by worms, rotten rhizoma Gastrodiae; Then by the high-pressure flow water shower mode of passing through one by one, clean, the rhizoma Gastrodiae after cleaning is carried out to stepping by different sizes, and steam respectively the heart; By rhizoma Gastrodiae manual longitudinal section one by one, sheet type thickness is about 5mm again, then paving dish one by one; Rhizoma Gastrodiae is placed in pre-freeze storehouse and keeps 0.5～1h subsequently, makes material inside and outside temperature and pre-freeze lab environment temperature reach balance; The rapid prefreezing of material to central temperature is reduced to-35 ℃, and keep more than 2 hours; The rhizoma Gastrodiae of prefreezing is placed in rapidly in vacuum freeze drier, and maintenance vacuum is 12.9～26Pa, and temperature is 3-5% for carrying out lyophilization to moisture under-15-45 ℃ of conditions; After finishing, freeze-drying passes into drying nitrogen pressure release; Then in temperature, be 20～26 ℃, under the condition that humidity is 15-25%, pack; In when packing, rhizoma Gastrodiae is reduced one by one fixingly with special bar, according to packing specification, carry out vacuum or nitrogen-filled packaging, assurance moisture content is in 5%.Wherein packing is will guarantee to pack in clean area.The meaning of reduction is that tableted rhizoma Gastrodiae is scrabbled up to an integral body more one by one, then by special bar, is fixed; Special bar is: reach the paper slip, bonding jumper of food sanitation standard or other can be fixed by fixing packaging material, again with edible shrink film or the good aluminum plated PET/PVDC/PE sandwich diaphragm item packaging of employing gas barrier property, in packing, add silica-gel desiccant simultaneously, guarantee the shelf-life of product.
Embodiment 3
Fresh agate card raw material is carried out to selected removal of impurities, pick out the good agate card of shape; Then by the high-pressure flow water shower mode of passing through one by one, clean, the agate card after cleaning is removed to fibrous root, manual longitudinal section one by one, sheet type thickness is about 5mm, then paving dish one by one; Agate is placed in pre-freeze storehouse and keeps 0.5～1h subsequently, makes material inside and outside temperature and pre-freeze lab environment temperature reach balance; The rapid prefreezing of material to central temperature is reduced to-30 ℃, and keep more than 2 hours; The rhizoma Gastrodiae of prefreezing is placed in rapidly in vacuum freeze drier, and maintenance vacuum is 15～30Pa, and temperature is 3-5% for being dried to moisture under-10-40 ℃ of conditions; After finishing, freeze-drying passes into drying nitrogen pressure release; Then in temperature, be 20～26 ℃, under the condition that humidity is 15-25%, pack; When packing, agate card is fixed with special bar or the single reduction of bag, according to packing specification, carried out vacuum or nitrogen-filled packaging, guarantee that moisture content is in 5%.Wherein packing is will guarantee to pack in clean area.The meaning of reduction is that tableted matsutake is scrabbled up to an integral body more one by one, then by special bar, is fixed; Special bar is: reach the paper slip, bonding jumper of food sanitation standard or other can be fixed by fixing packaging material, again with edible shrink film or the good aluminum plated PET/PVDC/PE sandwich diaphragm item packaging of employing gas barrier property, in packing, add silica-gel desiccant simultaneously, guarantee the shelf-life of product.
Should be noted that, above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the present invention, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (4)
1. the preparation method of a class freeze-drying prods, is characterized in that, described freeze-drying prods be by raw material through operation: selected, do not remove the peel cleaning, draining, section paving dish, pre-freeze, vacuum freeze drying, single original shape, the packing of being reduced to, get product.
2. the preparation method of a class freeze-drying prods according to claim 1, is characterized in that, described raw material is rhizoma Gastrodiae, matsutake, agate card, pseudo-ginseng, ginseng, American Ginseng, rhodiola root, bacterium mushroom or fruits and vegetables.
3. the preparation method of a class freeze-drying prods according to claim 2, it is characterized in that, the concrete preparation method of described freeze-drying prods is as follows: (1) by fresh raw material through selected removal of impurities, remove the earth impurity adhering on raw material and select fracture, damage by worms, rotten product; (2) with mobile drinking water, clean one by one, draining 5～10 minutes, longitudinally cutting is the sheet of thickness 5～6mm one by one, one by one paving dish; (3) pre-freeze: raw material is placed in pre-freeze storehouse and keeps 0.5～1h, make material inside and outside temperature reach balance; The rapid prefreezing of material to central temperature is reduced to-40～-30 ℃; Vacuum freeze drying: it is 10～40pa that the material of prefreezing is placed in maintenance vacuum in vacuum freeze drier, and lyophilization is carried out in temperature of charge-30～-10 ℃; In maximum temperature, be finally that at 25 ℃～40 ℃, parsing-desiccation to moisture is 3～5%; After finishing, freeze-drying passes into drying nitrogen pressure release; (4) vacuum packaging or be filled with the single also original packing of nitrogen.
4. the preparation method of a class freeze-drying prods according to claim 3, is characterized in that, the condition of packing is that temperature is 18～26 ℃, and relative humidity is under 15-25% condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310720906.6A CN103704851A (en) | 2013-12-24 | 2013-12-24 | Method for preparing lyophilized products |
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| CN201310720906.6A CN103704851A (en) | 2013-12-24 | 2013-12-24 | Method for preparing lyophilized products |
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| CN103704851A true CN103704851A (en) | 2014-04-09 |
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| CN201310720906.6A Pending CN103704851A (en) | 2013-12-24 | 2013-12-24 | Method for preparing lyophilized products |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068102A (en) * | 2014-07-23 | 2014-10-01 | 丽江三川实业集团有限公司 | Frozen processing method for boletus |
| CN104068100A (en) * | 2014-07-23 | 2014-10-01 | 丽江三川实业集团有限公司 | Frozen processing method for pignolia |
| CN104288227A (en) * | 2014-10-17 | 2015-01-21 | 王新华 | Novel drying method of fresh traditional Chinese medicine materials and application of dried traditional Chinese medicine materials |
| CN105360878A (en) * | 2015-11-04 | 2016-03-02 | 冯辉军 | Freeze-drying processing technology for chopped pepper and pepper paste |
| CN105685881A (en) * | 2016-03-03 | 2016-06-22 | 湖南省农产品加工研究所 | Lime slices and preparation method thereof |
| CN106720225A (en) * | 2016-11-30 | 2017-05-31 | 苏州市经纬农产品有限公司 | A kind of preparation method of lyophilized white mushroom piece |
| CN107495322A (en) * | 2017-07-12 | 2017-12-22 | 香格里拉市加发农业科技有限责任公司 | The freeze-drying processing method of hickory chick |
| CN108613940A (en) * | 2018-05-04 | 2018-10-02 | 黑龙江神守药业有限公司 | A kind of Radix Notoginseng freeze-drying system of processing and its control method |
| CN109007006A (en) * | 2018-08-30 | 2018-12-18 | 重庆农笑农业发展有限公司 | Fruit freezing and fresh-keeping method |
| CN115997919A (en) * | 2023-03-10 | 2023-04-25 | 云南康嘉农副产品加工有限公司 | Preparation method of freeze-dried tricholoma matsutake |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068102A (en) * | 2014-07-23 | 2014-10-01 | 丽江三川实业集团有限公司 | Frozen processing method for boletus |
| CN104068100A (en) * | 2014-07-23 | 2014-10-01 | 丽江三川实业集团有限公司 | Frozen processing method for pignolia |
| CN104288227A (en) * | 2014-10-17 | 2015-01-21 | 王新华 | Novel drying method of fresh traditional Chinese medicine materials and application of dried traditional Chinese medicine materials |
| CN105360878A (en) * | 2015-11-04 | 2016-03-02 | 冯辉军 | Freeze-drying processing technology for chopped pepper and pepper paste |
| CN105685881A (en) * | 2016-03-03 | 2016-06-22 | 湖南省农产品加工研究所 | Lime slices and preparation method thereof |
| CN106720225A (en) * | 2016-11-30 | 2017-05-31 | 苏州市经纬农产品有限公司 | A kind of preparation method of lyophilized white mushroom piece |
| CN107495322A (en) * | 2017-07-12 | 2017-12-22 | 香格里拉市加发农业科技有限责任公司 | The freeze-drying processing method of hickory chick |
| CN108613940A (en) * | 2018-05-04 | 2018-10-02 | 黑龙江神守药业有限公司 | A kind of Radix Notoginseng freeze-drying system of processing and its control method |
| CN108613940B (en) * | 2018-05-04 | 2020-01-07 | 黑龙江神守药业有限公司 | Panax notoginseng freeze-drying processing system and control method thereof |
| CN109007006A (en) * | 2018-08-30 | 2018-12-18 | 重庆农笑农业发展有限公司 | Fruit freezing and fresh-keeping method |
| CN115997919A (en) * | 2023-03-10 | 2023-04-25 | 云南康嘉农副产品加工有限公司 | Preparation method of freeze-dried tricholoma matsutake |
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Application publication date: 20140409 |