CN111990578A - Fresh freezing storage method of natural cordyceps sinensis - Google Patents

Fresh freezing storage method of natural cordyceps sinensis Download PDF

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Publication number
CN111990578A
CN111990578A CN202010871715.XA CN202010871715A CN111990578A CN 111990578 A CN111990578 A CN 111990578A CN 202010871715 A CN202010871715 A CN 202010871715A CN 111990578 A CN111990578 A CN 111990578A
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cordyceps
fresh
cordyceps sinensis
sterilizing
freezing
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尹浩
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/26Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/28Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36Freezing; Subsequent thawing; Cooling
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/06Fungi, e.g. yeasts
    • A61K36/062Ascomycota
    • A61K36/066Clavicipitaceae
    • A61K36/068Cordyceps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/102Stationary cabinets
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Engineering & Computer Science (AREA)
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  • Chemical & Material Sciences (AREA)
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  • Food Science & Technology (AREA)
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  • Natural Medicines & Medicinal Plants (AREA)
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  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
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  • Biotechnology (AREA)
  • Alternative & Traditional Medicine (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention relates to a fresh freezing storage method of natural cordyceps sinensis, which comprises the following steps: s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis; s2: sterilizing; placing the cleaned Cordyceps in a sterilizing box, and sterilizing the surface of the Cordyceps; s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with a film, and then carrying out vacuum treatment; s4: performing quick freezing treatment; placing the vacuum packaged Cordyceps in a liquid ammonia freezer at-65 deg.C for rapid freezing; s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃. According to the invention, the cordyceps sinensis is treated and stored through the steps, so that the fresh cordyceps sinensis can be kept and transported for a long time and a long distance under the condition that the original nutritional active ingredients of the cordyceps sinensis are retained to the greatest extent, and the preservation time can reach more than 360 days.

Description

Fresh freezing storage method of natural cordyceps sinensis
Technical Field
The invention relates to the technical field of natural cordyceps sinensis preservation, in particular to a fresh freezing storage method of natural cordyceps sinensis.
Background
The cordyceps sinensis is produced in a high and cold area with an altitude of more than 3000 meters, the digging time is 4-6 months per year, the cordyceps sinensis grown in the initial stage is slightly different according to different altitudes, the cordyceps sinensis grown in the initial stage is short in grass buds and long in worm bodies, the cordyceps sinensis grown in the final stage is long in grass buds and short in worm bodies and is slightly shriveled, only the cordyceps sinensis grown in the middle stage is excellent in quality, the proportion is uniform, and the production area is mostly in a deep mountain. Due to the bottleneck of the preservation technology, the traditional processing mode is to transport the collected cordyceps sinensis to the point of sale after natural drying.
The above-described treatment method has the following disadvantages: firstly, the production time of fresh cordyceps sinensis is very short, and fresh cordyceps sinensis cannot be tasted in most of the time in one year; secondly, the broken strip rate of the naturally dried cordyceps sinensis is very high, and the loss caused in transportation is greatly increased; and thirdly, the nutrition and active ingredients of the cordyceps sinensis are greatly lost in the natural drying process, and researches show that the nutrition value of the fresh cordyceps sinensis is 3 times of that of the dry cordyceps sinensis.
Disclosure of Invention
Based on the above, the invention provides a fresh freezing storage method of natural cordyceps sinensis, which solves the traditional technical problem and can keep and transport fresh cordyceps sinensis for a long time and a long distance.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a fresh freezing storage method of natural cordyceps comprises the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis;
s2: sterilizing; placing the cleaned Cordyceps in a sterilizing box, and sterilizing the surface of the Cordyceps;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with a film, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the vacuum packaged Cordyceps in a liquid ammonia freezer at-65 deg.C for rapid freezing;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃.
Preferably, in step S1, the soil and impurities on the surface of the cordyceps sinensis are removed by a dry brush for 18-22S.
Preferably, in step S2, the sterilization chamber is an ultraviolet sterilization chamber, the wavelength of ultraviolet light is 280nm to 320nm, and the sterilization time is 25min to 35 min.
Preferably, the sterilization time is 30 min.
Preferably, in step S3, the reservoir is a glass tube or a plastic tube.
Preferably, in step S3, the film is an edible grade plastic film.
Preferably, in step S4, the temperature of the liquid ammonia freezer ranges from-65 ℃ to-75 ℃.
Preferably, in step S4, the quick freezing treatment time is 5min to 8 min.
Preferably, the quick freezing treatment time is 5 min.
A fresh freezing storage method of natural cordyceps comprises the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis;
s2: sterilizing; placing the cleaned Cordyceps in an ultraviolet sterilizing box, and sterilizing the surface of Cordyceps for 30 min;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with edible plastic films, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the cordyceps subjected to vacuum packaging in a liquid ammonia freezer at the temperature of-65 ℃ to-75 ℃ for quick freezing for 5 min;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the cordyceps sinensis is treated and stored through the steps of pretreatment, disinfection treatment, vacuum treatment, quick freezing treatment, heat preservation storage treatment and the like, so that the fresh cordyceps sinensis can be kept for a long time and transported for a long distance under the condition that the original nutritional active ingredients of the cordyceps sinensis are retained to the greatest extent, and the preservation time can reach more than 360 days.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
A fresh freezing storage method of natural cordyceps comprises the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps to retain original nutritional active ingredients of the cordyceps to the maximum extent;
s2: sterilizing; placing the cleaned cordyceps in a disinfection box, and disinfecting the surface of the cordyceps to eliminate bacteria on the surface of the cordyceps;
s3: carrying out vacuum treatment; taking the sterilized cordyceps sinensis out of the sterilizing box, respectively putting the cordyceps sinensis into a storage, wrapping the cordyceps sinensis by using a film, then carrying out vacuum treatment, and storing the cordyceps sinensis in a vacuum mode, so that the cordyceps sinensis is prevented from breeding bacteria in humid air;
s4: performing quick freezing treatment; placing the cordyceps subjected to vacuum packaging in a liquid ammonia freezer at the temperature of below 65 ℃ below zero for quick freezing treatment, and further eliminating bacteria on the cordyceps in a quick freezing mode;
s5: preserving heat and storing; storing the cordyceps sinensis after being frozen quickly in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃ so as to inhibit the breeding of bacteria in a freezing way.
The fresh freezing storage method processes and stores the cordyceps sinensis through the steps of pretreatment, disinfection treatment, vacuum treatment, quick freezing treatment, heat preservation storage treatment and the like, so that the fresh cordyceps sinensis can be kept for a long time and transported for a long distance under the condition that the original nutritional active ingredients of the cordyceps sinensis are retained to the maximum extent, and the preservation time can reach more than 360 days.
Preferably, in step S1, the soil and impurities on the surface of the cordyceps sinensis are removed by a dry brush for 18-22S.
Preferably, in step S2, the sterilization chamber is an ultraviolet sterilization chamber, the wavelength of ultraviolet light is 280nm to 320nm, and the sterilization time is 25min to 35 min.
Preferably, the sterilization time is 30 min.
Preferably, in step S3, the reservoir is a glass tube or a plastic tube.
Preferably, in step S3, the film is an edible grade plastic film.
Preferably, in step S4, the temperature of the liquid ammonia freezer ranges from-65 ℃ to-75 ℃.
Preferably, in step S4, the quick freezing treatment time is 5min to 8 min.
Preferably, the quick freezing treatment time is 5 min.
A fresh freezing storage method of natural cordyceps comprises the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis;
s2: sterilizing; placing the cleaned Cordyceps in an ultraviolet sterilizing box, and sterilizing the surface of Cordyceps for 30 min;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with edible plastic films, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the cordyceps subjected to vacuum packaging in a liquid ammonia freezer at the temperature of-65 ℃ to-75 ℃ for quick freezing for 5 min;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃.
The following are specific examples of the present invention, and raw materials, equipment, and the like used in the following examples can be obtained by purchasing, unless otherwise specified.
Example 1:
a fresh freezing storage method of natural cordyceps comprises the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis by using a brush in a dry brushing mode, wherein the removing time is 20 s;
s2: sterilizing; placing the cleaned cordyceps in an ultraviolet disinfection box, and disinfecting the surface of the cordyceps for 30min, wherein the wavelength of ultraviolet is 280-320 nm;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into glass tubes, wrapping the cordyceps with edible plastic films, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the vacuum packaged Cordyceps in a liquid ammonia freezer at-65 deg.C for quick freezing for 5 min;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15 ℃.
Example 2:
the difference from example 1 was that the sterilization time of example 2 was 25min, and the other operations were the same as example 1.
Example 3:
the difference from example 1 was that the sterilization time in example 3 was 35min, and the other operations were the same as in example 1.
Example 4:
the difference from example 1 was that the time for the quick-freezing treatment in example 4 was 8min, and the other operations were the same as in example 1.
Example 5:
the storage container of example 5 is a plastic tube, which is different from example 1, and the other operations are the same as example 1.
Comparative example 1:
unlike example 1, the procedure of example 1 was the same as that of example 1 except that the surface of the cordyceps sinensis was cleaned with water in comparative example 1.
Comparative example 2:
unlike example 1, the sterilization time in comparative example 2 was 20min, and the other operations were the same as example 1.
Comparative example 3:
unlike example 1, comparative example 2 was not stored in a storage container and was directly wrapped with a film, and the other operations were the same as example 1.
And (3) performance detection:
1. experimental methods
Respectively taking 240 cordyceps sinensis, dividing the cordyceps sinensis into 8 groups, processing the cordyceps sinensis into 30 groups according to the modes of examples 1 to 5 and comparative examples 1 to 3, dividing each group into 5 groups, storing each group with 6 cordyceps sinensis for 180 days, 240 days and 360 days, respectively, testing the weight loss rate (marked as A), the soluble protein content reduction rate (marked as B) and the polyphenol oxidase activity increase rate (marked as C) of the cordyceps sinensis, and calculating the average value, wherein the test results are as shown in the following table 1:
TABLE 1
Figure BDA0002651341670000061
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A fresh freezing storage method of natural cordyceps is characterized by comprising the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis;
s2: sterilizing; placing the cleaned Cordyceps in a sterilizing box, and sterilizing the surface of the Cordyceps;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with a film, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the vacuum packaged Cordyceps in a liquid ammonia freezer at-65 deg.C for rapid freezing;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃.
2. The method for fresh-frozen storage of natural cordyceps sinensis according to claim 1, wherein in step S1, the soil and impurities on the surface of cordyceps sinensis are removed by a brush in a dry-brushing manner for 18S to 22S.
3. The method for fresh-frozen storage of natural cordyceps sinensis according to claim 1, wherein in step S2, the sterilizing chamber is an ultraviolet sterilizing chamber, the wavelength of ultraviolet light is 280nm to 320nm, and the sterilizing time is 25min to 35 min.
4. The method for fresh-frozen storage of natural cordyceps sinensis according to claim 3, wherein said sterilization time is 30 min.
5. The fresh-frozen storage method of natural cordyceps sinensis according to claim 1, wherein in step S3, the storage is a glass tube or a plastic tube.
6. The method for fresh-frozen storage of natural cordyceps sinensis according to claim 1, wherein in step S3, the film is an edible grade plastic film.
7. The fresh-frozen storage method of natural cordyceps sinensis according to claim 1, wherein in step S4, the temperature range of the liquid ammonia freezer is-65 ℃ to-75 ℃.
8. The fresh freezing storage method of natural cordyceps sinensis according to claim 1, wherein in step S4, the quick freezing treatment time is 5min to 8 min.
9. The fresh freezing storage method of natural cordyceps sinensis according to claim 8, wherein the quick freezing treatment time is 5 min.
10. A fresh freezing storage method of natural cordyceps is characterized by comprising the following steps:
s1: pre-treating; removing soil and impurities on the surface of fresh cordyceps sinensis;
s2: sterilizing; placing the cleaned Cordyceps in an ultraviolet sterilizing box, and sterilizing the surface of Cordyceps for 30 min;
s3: carrying out vacuum treatment; taking out the sterilized cordyceps from the sterilizing box, respectively putting the cordyceps into a storage, wrapping the cordyceps with edible plastic films, and then carrying out vacuum treatment;
s4: performing quick freezing treatment; placing the cordyceps subjected to vacuum packaging in a liquid ammonia freezer at the temperature of-65 ℃ to-75 ℃ for quick freezing for 5 min;
s5: preserving heat and storing; storing the cordyceps after the quick freezing in a fresh-keeping cabinet with the relative humidity of 60-80% and the temperature of-15-22 ℃.
CN202010871715.XA 2020-08-26 2020-08-26 Fresh freezing storage method of natural cordyceps sinensis Pending CN111990578A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106727734A (en) * 2017-01-05 2017-05-31 广东东阳光药业有限公司 Fresh cordyceps sinensis product and preparation method thereof
CN109717354A (en) * 2019-03-08 2019-05-07 中国科学院西北高原生物研究所 A kind of method of liquid nitrogen immersion quick-freezing fresh-keeping cordyceps sinensis
CN109717347A (en) * 2019-03-08 2019-05-07 中国科学院西北高原生物研究所 A kind of method of controlled atmospheric packing and ultraviolet irradiation composite fresh-keeping cordyceps sinensis
CN110628633A (en) * 2019-10-31 2019-12-31 东莞市东阳光冬虫夏草研发有限公司 Fresh-keeping method of fresh cordyceps sinensis and fresh cordyceps sinensis product

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106727734A (en) * 2017-01-05 2017-05-31 广东东阳光药业有限公司 Fresh cordyceps sinensis product and preparation method thereof
CN109717354A (en) * 2019-03-08 2019-05-07 中国科学院西北高原生物研究所 A kind of method of liquid nitrogen immersion quick-freezing fresh-keeping cordyceps sinensis
CN109717347A (en) * 2019-03-08 2019-05-07 中国科学院西北高原生物研究所 A kind of method of controlled atmospheric packing and ultraviolet irradiation composite fresh-keeping cordyceps sinensis
CN110628633A (en) * 2019-10-31 2019-12-31 东莞市东阳光冬虫夏草研发有限公司 Fresh-keeping method of fresh cordyceps sinensis and fresh cordyceps sinensis product

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Application publication date: 20201127