CN113974101A - Litchi pretreatment processing method and litchi meat freeze-drying method - Google Patents
Litchi pretreatment processing method and litchi meat freeze-drying method Download PDFInfo
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- CN113974101A CN113974101A CN202111279620.XA CN202111279620A CN113974101A CN 113974101 A CN113974101 A CN 113974101A CN 202111279620 A CN202111279620 A CN 202111279620A CN 113974101 A CN113974101 A CN 113974101A
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- 235000013372 meat Nutrition 0.000 title claims abstract description 42
- 238000004108 freeze drying Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003672 processing method Methods 0.000 title claims abstract description 20
- 241001629511 Litchi Species 0.000 title claims abstract 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000007710 freezing Methods 0.000 claims abstract description 15
- 238000005057 refrigeration Methods 0.000 claims abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 244000052616 bacterial pathogen Species 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 239000000834 fixative Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003306 harvesting Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 244000183278 Nephelium litchi Species 0.000 description 130
- 238000004659 sterilization and disinfection Methods 0.000 description 7
- 235000013399 edible fruits Nutrition 0.000 description 5
- 235000016709 nutrition Nutrition 0.000 description 5
- 230000035764 nutrition Effects 0.000 description 4
- 238000009777 vacuum freeze-drying Methods 0.000 description 2
- 235000009917 Crataegus X brevipes Nutrition 0.000 description 1
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- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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- 238000010257 thawing Methods 0.000 description 1
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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
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
-
- 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
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
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- 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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- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
The invention belongs to the processing technology of agricultural products, and particularly discloses a litchi pretreatment processing method and a litchi meat freeze-drying method, wherein the pretreatment processing method comprises the following steps: (1) carrying out shelling treatment on the litchi to obtain litchi pulp with kernels; (2) carrying out quick-freezing treatment on the litchi pulp with the seeds, completely freezing the litchi pulp with the seeds, and storing the litchi pulp with the seeds in a low-temperature refrigeration house; (3) when litchi pulp needs to be processed, the frozen litchi pulp with the seeds is taken out and appropriately heated, and the litchi pulp with the seeds is subjected to denucleation treatment under the condition of unfreezing, so that complete seedless litchi pulp is obtained, and litchi pretreatment processing is completed. The freeze-drying method comprises the following steps: (1) re-freezing the seedless litchi pulp; (2) pushing into a freeze dryer for freeze drying; (3) and (5) packaging and sterilizing. The processing method is beneficial to processing the litchi pulp within the whole year after the litchi harvest period, and the litchi pulp is not deteriorated, so that the litchi processing time is effectively prolonged; the core removal is carried out under the condition of no ice melting by heating, which is favorable for ensuring the integrity of the litchi pulp.
Description
Technical Field
The invention relates to a processing method of agricultural products, in particular to a litchi pretreatment processing method and a litchi meat freeze-drying method.
Background
Litchi is one of common fruits and has rich nutritional ingredients, but the mature harvesting period of litchi is short, the litchi is not easy to store, the whole-year litchi processing cannot be realized, and the litchi complete meat taking processing technology is immature, and the litchi meat is obtained by removing kernels and meat manually, so that the litchi processing labor is concentrated, the labor amount is large, particularly, the litchi meat is processed by vacuum freeze-drying, and the vacuum freeze-drying has long batch processing period and low yield, so that the processing of the litchi meat is severely restricted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a litchi pretreatment processing method which realizes long-time storage of litchi pulp, thereby being beneficial to realizing annual processing of litchi and effectively ensuring the completeness of the litchi pulp.
The invention also aims to provide a litchi meat freeze-drying method.
The purpose of the invention is realized by the following technical scheme:
the litchi pretreatment processing method is characterized by comprising the following steps:
(1) removing shells of the litchis to obtain pitted litchis meat;
(2) carrying out quick-freezing treatment on the litchi pulp with the seeds to completely freeze the litchi pulp with the seeds, and storing the litchi pulp with the seeds in a low-temperature refrigeration house;
(3) when litchi pulp needs to be processed, the frozen litchi pulp with the seeds is taken out, the temperature is properly raised, and the litchi pulp with the seeds is subjected to denucleation treatment under the condition of unfreezing, so that complete seedless litchi pulp is obtained, and litchi pretreatment processing is completed.
According to a preferred scheme of the invention, before the shell removing treatment is carried out on the litchi, the litchi surface pericarp is cleaned and disinfected by a cleaning and disinfecting machine, so that the litchi pulp is prevented from being polluted by germs on the litchi surface pericarp.
According to a preferable scheme of the invention, after the litchi pulp with seeds is obtained in the step (1), clean clear water is used for spraying and cleaning the litchi pulp with seeds, so that the clean surface of the litchi pulp with seeds is ensured.
Preferably, the color protecting agent is adopted to carry out color protecting treatment on the litchi pulp with the seeds, so that the litchi pulp with the seeds keeps good color; meanwhile, the step (2) is performed after draining.
According to a preferable scheme of the invention, in the step (2), the litchi pulp with the seeds is uniformly put into a quick-freezing machine for quick-freezing treatment, and the litchi pulp with the seeds is quickly frozen to be below 18 ℃ below zero.
According to a preferable scheme of the invention, in the step (3), after the frozen litchi pulp with seeds is taken out, the litchi pulp with seeds is subjected to heating treatment, and the specific temperature is increased to-10-0 ℃; meanwhile, carrying out denucleation treatment on the seedless litchi meat by using a core poking machine at the temperature of-10 ℃ to obtain the seedless litchi meat.
Preferably, performing denucleation treatment on the seedy litchi meat by using a coring machine at the temperature of-5 ℃ to obtain seedless litchi meat; or, fast stoning treatment is carried out at the temperature of 0-10 ℃ to obtain the seedless litchi pulp.
A litchi meat freeze-drying method comprises the following steps:
(1) pretreating picked litchi by adopting the litchi pretreatment processing method, thereby obtaining seedless litchi pulp to be freeze-dried;
(2) re-freezing the seedless litchi pulp;
(3) pushing the re-frozen seedless litchi pulp into a freeze dryer for freeze drying to obtain freeze-dried litchi pulp;
(4) and (5) filling nitrogen to package the freeze-dried litchi pulp.
Preferably, in step (3), the cold trap temperature of the freeze dryer is set to have an upper limit of-55 ℃ and a lower limit of-60 ℃; in the first stage of the freeze-drying process, the heating temperature is set to be 20 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the second stage, the heating temperature is set to be 40 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the fourth stage, the heating temperature is set to be 65 ℃, the temperature is kept for 6 hours, the upper limit of the pressure is 80Pa, and the lower limit is 50 Pa; in the fifth stage, the heating temperature is set to be 55 ℃, the temperature is kept for 3 hours, the upper limit of the pressure is 100Pa, and the lower limit is 60 Pa; in the sixth stage, the heating temperature is set to be 50 ℃ until the temperature of all seedless litchi pulp is more than 45 ℃, the upper limit of the pressure is 30Pa, and the lower limit is 10 Pa.
Preferably, in the step (2), the seedless litchi pulp obtained by pretreatment is refrozen to below-20 ℃.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the pretreatment processing method, after the shells of the litchi meat are removed, the litchi meat with the kernels is directly quick-frozen and stored at low temperature, so that the nutrition of the litchi is kept, the nutrition loss is avoided, more importantly, the litchi meat can be stored completely, the storage time is effectively and obviously prolonged, and the litchi meat processing can be conveniently carried out within the whole year after the litchi is harvested.
2. When seedless litchi pulp needs to be obtained, the method adopts a mode of heating without melting ice, and performs denucleation treatment under the condition that the litchi pulp with the core is not thawed, so that the completeness of the litchi pulp is ensured, and the denucleation processing is also convenient, thereby being beneficial to improving the quality of the later freeze-drying processing and the quality of the finished product of the freeze-dried litchi pulp.
Drawings
FIG. 1 is a flow chart of the core steps of the litchi pretreatment processing method of the present invention.
FIG. 2 is a flow chart of the core steps of the litchi meat freeze-drying method of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Referring to fig. 1-2, the present embodiment specifically discloses a litchi meat freeze-drying method, which mainly includes litchi pretreatment and freeze-drying treatment, and specifically includes the following steps:
(1) picking fresh litchis with the maturity of more than seven percent, pouring the litchis into a sorting machine, and automatically or manually sorting by the machine to remove malformed fruits, worm fruits, bad fruits and the like; and then, the sorted excellent litchis are conveyed into a cleaning and disinfecting machine to clean and disinfect the surface peel of the litchis, so that the litchis are prevented from being polluted by germs on the surface peel of the litchis, and a precondition is provided for long-time storage of the litchis. In the cleaning and disinfection process, a cleaning machine can be independently adopted to firstly carry out water spray shower cleaning on the litchi surface, and then a disinfection machine is independently adopted to carry out disinfection treatment by adopting ozone water, hypochlorous acid water or other disinfection media; of course, the cleaning and disinfection integrated machine in the prior art can be adopted for cleaning and disinfection.
(2) Peeling litchi by using a peeling machine to obtain complete litchi pulp with kernels; the husking machine can adopt automatic husking equipment in the prior art, for example, the utility model 'an automatic litchi husking machine' with the authorization notice number of CN 2645459Y.
(3) After the husking is finished, the litchi pulp with the seeds is transported and transferred through a mesh belt conveyor, and a clear water spraying device is arranged at the rear section of the mesh belt conveyor; at the moment, workers can stand on two sides of the front section of the mesh belt conveyor to sort, and can sort out damaged litchi pulp with kernels and residual litchi shells, and also can sort out sundries, damaged litchi pulp with kernels, unqualified litchi pulp and the like by adopting automatic equipment such as a mechanical arm and the like; when the litchi pulp with the core moves to the rear section of the mesh belt conveyor, the litchi pulp with the core, residual small broken shells and other sundries which damage juice flowing out are cleaned and removed through the clear water spraying device, and the cleanness of the litchi pulp with the core is ensured.
(4) Transferring the litchi pulp with the seeds into a color protection water tank, adding a color protection agent, and performing color protection treatment on the litchi pulp with the seeds to ensure that the litchi pulp with the seeds keeps good color and luster, wherein the color protection time is about 10 minutes; meanwhile, the color-protected litchi pulp with the cores is transferred through a mesh belt conveyor to achieve the purpose of draining, and the litchi pulp with the cores is uniformly spread in the process of transferring and draining, so that the litchi pulp with the cores is prevented from being stuck together. By using the color fixative, the litchi pulp with seeds can keep good color before quick freezing, and the preservative effect of the litchi pulp can be improved, thereby further prolonging the storage time.
(5) Conveying the color-protected litchi pulp with kernels to a quick-freezing machine, and carrying out quick-freezing treatment to below-18 ℃ so as to completely freeze the litchi pulp with kernels; and then, storing the quick-frozen litchi pulp with the seeds in a frozen state in a low-temperature cold storage, wherein the temperature of the cold storage is set to be below 18 ℃ below zero.
(6) When litchi pulp needs to be freeze-dried, taking out the frozen litchi pulp with the seeds and heating the litchi pulp to-10 ℃ (the recommended heating range is-10 ℃ to 0 ℃); and the seedless litchi pulp is subjected to stoning treatment rapidly in a temperature environment of 0 ℃ and under the unfreezing condition, so that the complete seedless litchi pulp is obtained. Wherein, in the denucleation treatment, in addition to the temperature environment, the quick denucleation treatment can be selected at the temperature of 0-10 ℃, or the denucleation treatment can be carried out at the temperature of-5 ℃ to obtain the seedless litchi pulp. Further, to the processing of denucleating of taking nuclear litchi meat, can adopt to the nuclear machine of disclosing of fruits such as hawthorn, jujube among the prior art, can change the tool bit according to the size of litchi seed during specific processing to accomplish the processing of denucleating more accurately fast, guarantee the integrality of litchi meat.
The steps are pretreatment steps in the litchi meat freeze-drying method, and the steps are completed, namely, pretreatment of litchi is completed, and seedless litchi meat is obtained; the following steps are specific steps of freeze-drying processing treatment of seedless litchi pulp. Of course, the pretreatment method can be adopted for other processing of the litchi pulp.
(7) The obtained seedless litchi pulp is palletized and refrozen to the temperature below minus 20 ℃.
(8) Pushing the re-frozen seedless litchi pulp into a freeze dryer for freeze drying to obtain freeze-dried litchi pulp; wherein the upper limit of the cold trap temperature of the freeze dryer is set to be-55 ℃ and the lower limit is set to be-60 ℃; in the first stage of the freeze-drying process, the heating temperature is set to be 20 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the second stage, the heating temperature is set to be 40 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the fourth stage, the heating temperature is set to be 65 ℃, the temperature is kept for 6 hours, the upper limit of the pressure is 80Pa, and the lower limit is 50 Pa; in the fifth stage, the heating temperature is set to be 55 ℃, the temperature is kept for 3 hours, the upper limit of the pressure is 100Pa, and the lower limit is 60 Pa; in the sixth stage, the heating temperature is set to be 50 ℃ until the temperature of all seedless litchi pulp is more than 45 ℃, the upper limit of the pressure is 30Pa, and the lower limit is 10 Pa; and (5) taking out after freeze-drying is finished.
(9) And (3) filling nitrogen into the freeze-dried litchi pulp for packaging, wherein the nitrogen is dry nitrogen.
(10) And (4) performing nuclear radiation sterilization on the packaged freeze-dried litchi pulp.
According to the litchi meat freeze-drying method, during pretreatment, the litchi meat with the seeds is directly subjected to quick freezing and low-temperature storage after the shells are removed, so that the nutrition of litchi is kept, the nutrition loss is avoided, more importantly, the litchi can be stored completely, the litchi storage time is effectively and obviously prolonged, and the litchi meat processing can be performed within the whole year. Meanwhile, the method of heating without melting ice (heating without thawing) is adopted, and the denucleation treatment is carried out under the condition that the litchi pulp with the core is not thawed, so that the completeness of the litchi pulp is ensured, and the denucleation processing is also convenient, thereby being beneficial to improving the quality of the freeze-drying processing in the later period and the quality of the finished freeze-dried litchi pulp.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (10)
1. The litchi pretreatment processing method is characterized by comprising the following steps:
(1) removing shells of the litchis to obtain pitted litchis meat;
(2) carrying out quick-freezing treatment on the litchi pulp with the seeds to completely freeze the litchi pulp with the seeds, and storing the litchi pulp with the seeds in a low-temperature refrigeration house;
(3) when litchi pulp needs to be processed, the frozen litchi pulp with the seeds is taken out, the temperature is properly raised, and the litchi pulp with the seeds is subjected to denucleation treatment under the condition of unfreezing, so that complete seedless litchi pulp is obtained, and litchi pretreatment processing is completed.
2. The litchi pretreatment processing method of claim 1, wherein before the litchi is subjected to the shelling treatment, the litchi surface pericarp is cleaned and disinfected by a cleaning and disinfecting machine, so that the litchi pulp is prevented from being polluted by germs on the litchi surface pericarp.
3. The litchi pretreatment processing method according to claim 1 or 2, wherein after the litchi pulp with seeds is obtained in the step (1), clean clear water is used for spraying and cleaning the litchi pulp with seeds, so that the surface of the litchi pulp with seeds is clean.
4. The litchi pretreatment processing method as claimed in claim 3, wherein a color fixative is used to protect the nucleated litchi meat so that the nucleated litchi meat maintains good color; meanwhile, the step (2) is performed after draining.
5. The litchi pretreatment processing method according to claim 1, wherein in the step (2), the litchi pulp with seeds is uniformly put into a quick-freezing machine for quick-freezing treatment, and the litchi pulp with seeds is quickly frozen to a temperature below-18 ℃.
6. The litchi pretreatment processing method according to claim 1, wherein in the step (3), after the frozen nucleated litchi meat is taken out, the nucleated litchi meat is subjected to a temperature rise treatment, specifically, the temperature is raised to-10 ℃ to 0 ℃; meanwhile, carrying out denucleation treatment on the seedless litchi meat by using a core poking machine at the temperature of-10 ℃ to obtain the seedless litchi meat.
7. The litchi pretreatment processing method according to claim 6, wherein a stoning process is performed on the seedy litchi meat by a stoning machine at a temperature of-5 ℃ to obtain seedless litchi meat; or, fast stoning treatment is carried out at the temperature of 0-10 ℃ to obtain the seedless litchi pulp.
8. The litchi meat freeze-drying method is characterized by comprising the following steps:
(1) pretreating picked litchi by using the litchi pretreatment processing method of any one of claims 1-7, thereby obtaining seedless litchi pulp to be freeze-dried;
(2) re-freezing the seedless litchi pulp;
(3) pushing the re-frozen seedless litchi pulp into a freeze dryer for freeze drying to obtain freeze-dried litchi pulp;
(4) and (5) filling nitrogen to package the freeze-dried litchi pulp.
9. The litchi meat freeze-drying method according to claim 8, wherein in the step (3), the cold trap temperature of a freeze dryer is set to have an upper limit of-55 ℃ and a lower limit of-60 ℃; in the first stage of the freeze-drying process, the heating temperature is set to be 20 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the second stage, the heating temperature is set to be 40 ℃, the temperature is kept for 1 hour, the upper limit of the pressure is 50Pa, and the lower limit is 20 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the third stage, the heating temperature is set to be 55 ℃, the heating temperature is kept for 1 hour, the upper limit of the pressure is 60Pa, and the lower limit is 30 Pa; in the fourth stage, the heating temperature is set to be 65 ℃, the temperature is kept for 6 hours, the upper limit of the pressure is 80Pa, and the lower limit is 50 Pa; in the fifth stage, the heating temperature is set to be 55 ℃, the temperature is kept for 3 hours, the upper limit of the pressure is 100Pa, and the lower limit is 60 Pa; in the sixth stage, the heating temperature is set to be 50 ℃ until the temperature of all seedless litchi pulp is more than 45 ℃, the upper limit of the pressure is 30Pa, and the lower limit is 10 Pa.
10. The litchi meat freeze-drying method according to claim 8 or 9, wherein in the step (2), the seedless litchi meat obtained by pretreatment is re-frozen to below-20 ℃.
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| CN108771153A (en) * | 2018-05-03 | 2018-11-09 | 广西南亚热带农业科学研究所 | A kind of preparation method of fresh-keeping grapefruit the operatic circle mud |
| CN111802605A (en) * | 2020-07-10 | 2020-10-23 | 漳州福友食品有限公司 | Processing method of freeze-dried waxberries |
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