CN102488242B - Processing method for loach powder - Google Patents
Processing method for loach powder Download PDFInfo
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- CN102488242B CN102488242B CN2011103580058A CN201110358005A CN102488242B CN 102488242 B CN102488242 B CN 102488242B CN 2011103580058 A CN2011103580058 A CN 2011103580058A CN 201110358005 A CN201110358005 A CN 201110358005A CN 102488242 B CN102488242 B CN 102488242B
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Abstract
The invention discloses a processing method for a loach powder, characterized by comprising the following steps of: taking loaches, removing heads and internal organs, and cutting the loaches into small sections; pre-freezing the loach sections for 8-6 hours at a temperature of minus 35 to minus 45 DEG C and under a pressure of 450-550 torr; performing vacuum freeze-drying on the pre-frozen loaches via the following three stages with different temperatures and pressures: in the first stage, the temperature is minus 8 to minus 2 DEG C, the pressure is 700-500 mtorr, and the time is 6-8 hours; in the second stage, the temperature is 12 to 18 DEG C, the pressure is 200-300 mtorr, and the time is 6-8 hours; and in the third stage, the temperature is 32 to 38 DEG C, the pressure is 200-300 mtorr, and the time is 8-10 hours; and finally crushing the loaches via a crusher to obtain the loach powder. The method can kill parasites in loaches and furthest reserve active ingredients in loaches.
Description
Technical field
The present invention relates to the processing method of a kind of processing method of food, particularly a kind of loach powder.
Background technology
Loach (Misgurnus anguillicaudatus) is a kind of small-sized economic fish that China extensively distributes, and belongs to the Cypriniformes Cobitidae, its fine and tender taste, and delicious flavour is a kind of high protein, low-fat nutrition treasure.Traditional Chinese Medicine is also thought loach meat or all can be used as medicine, have nourishing Yin and clearing heat, invigorate the spleen and benefit qi, the medicinal efficacies such as clearing damp, Xing Yang, be recorded in Compendium of Material Medica and the documents such as " Chinese medicine voluminous dictionaries ".In folk prescription among the people, also have to adopt and eat loach raw to fall the method for the fire of deficiency type.The further investigation of modern biology shows, the natural polysaccharide that extracts from loach, glycoprotein and polypeptides matter show that through animal experiment study it has anti-inflammatory, transaminase lowering, removes jaundice and liver-protective effect (referenced patent ZL 03103933.2).Above theory of traditional Chinese medical science and biological study achievement explanation loach contains health care and the physiologically active ingredient such as medicinal, but its activity is subject to easily the factor such as high temperature and reduces.Loach lives in the bottom of water usually simultaneously, and parasite very easily colonizes in the loach body, such as clonorchis sinensis, Paragonismus westermani, tapeworm, echinococcus, angiostrongylus cantonensis, trichina etc.Parasite often colonizes in the positions such as the gill, alimentary canal, body surface.Eat loach raw and then can cause parasite to enter human body, cause whole body multisystem, organ lesion.
Application number is that 95108392.9 the disclosed method of Chinese publication document mainly adopts with loach directly or rub post-drying, its bake out temperature reaches 100 ℃, or through drying 12-14 hours below 60 ℃, make loach powder through pulverizing again, for prolonging the loach powder shelf-life, also passed through 100-130 ℃ sterilization, although above processing method can be killed parasite, dry moisture by high temperature, but owing to adopt high-temperature process, natural polysaccharide, glycoprotein and polypeptide isoreactivity material in the loach are lost activity, have a strong impact on the medicinal efficacy of loach powder.
Vacuum freeze drying is a kind of advanced person's foods processing technique, and its principle is that food is freezed first, then under higher vacuum, by the ice crystal sublimation moisture is removed the method that obtains drying, is usually used in the kept dry of microorganism fungus kind.Adopt the dry loach of traditional vacuum freeze-drying method, although its baking temperature is low, effectively retentive activity material effect very easily makes the loach endoparasite residual, thereby the crowd of taking is caused healthy hidden danger.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and the processing method of the residual loach powder of more reasonable, the effective retentive activity material of a kind of method design and minimizing parasite is provided.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of processing method of loach powder, is characterized in, its step is as follows:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1-2 centimetre segment, get the loach section;
(2) pre-freeze: be-35 ℃～-45 ℃ with the loach section through temperature, pressure is 450～550torr condition pre-freeze, 8～6h;
(3) vacuum freeze drying: the loach that pre-freeze is good carries out vacuum freeze drying through following 3 sections different temperatures, pressure: first paragraph is temperature-8～-2 ℃, pressure 700～500mtorr, time 6～8h; Second segment is 12～18 ℃ of temperature, pressure 200～300mtorr, time 6～8h; The 3rd section is 32～38 ℃ of temperature, pressure 200～300mtorr, time 8～10h;
(4) pulverize: be crushed to 20～50 orders through pulverizer, control is pulverized temperature and is no more than 40 ℃, namely gets loach powder.
In the processing method technical scheme of above-described loach powder, further preferred technical scheme is:
1, in step (2), pre-freeze is carried out under the condition of temperature-40 ℃, pressure 500torr, and the pre-freeze time is 7h.
2, in step (3), 3 sections vacuum freeze drying conditions are; First paragraph is temperature-5 ℃, pressure 600mtorr, time 7h; Second segment is 15 ℃ of temperature, pressure 250mtorr, time 7h; The 3rd section is 35 ℃ of temperature, pressure 250mtorr, time 9h.
Compared with prior art, the inventive method has the following advantages:
1, the present invention is through after the pre-freeze, and the parasite in the loach is killed, and forms large ice crystal in the loach body, is convenient to the time shorten of follow-up vacuum freeze drying.
2, with the low temperature pre-freeze processing method that combines with vacuum freeze drying, kill residual parasite in the loach body fully, can carry out fast at a lower temperature drying again, farthest keep the active component in the loach, make after crushed again high activity, take safe loach powder.
3, the loach powder moisture that makes through the inventive method can long preservation below 5%.
The specific embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not consist of its Copyright law.
Embodiment 1, a kind of processing method of loach powder, and its step is as follows:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1 centimetre segment, get the loach section;
(2) pre-freeze: be-35 ℃ with the loach section through temperature, pressure is 450 torr condition pre-freeze 8h;
(3) vacuum freeze drying: the loach that pre-freeze is good carries out vacuum freeze drying through following 3 sections different temperatures, pressure: first paragraph is temperature-8 ℃, pressure 700mtorr, time 6h; Second segment is 12 ℃ of temperature, pressure 200mtorr, time 6h; The 3rd section is 32 ℃ of temperature, pressure 200mtorr, time 8h;
(4) pulverize: be crushed to 20 orders through pulverizer, control is pulverized temperature and is no more than 40 ℃, namely gets loach powder.
Embodiment 2, a kind of processing method of loach powder, and its step is as follows:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 2 centimetres segment, get the loach section;
(2) pre-freeze: be-45 ℃ with the loach section through temperature, pressure is 550torr condition pre-freeze 6h;
(3) vacuum freeze drying: the loach that pre-freeze is good carries out vacuum freeze drying through following 3 sections different temperatures, pressure: first paragraph is temperature-2 ℃, pressure 500mtorr, time 8h; Second segment is 18 ℃ of temperature, pressure 300mtorr, time 8h; The 3rd section is 38 ℃ of temperature, pressure 300mtorr, time 10h;
(4) pulverize: be crushed to 50 orders through pulverizer, control is pulverized temperature and is no more than 40 ℃, namely gets loach powder.
Embodiment 3, a kind of processing method of loach powder, and its step is as follows:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 2 centimetres segment, get the loach section;
(2) pre-freeze: be-40 ℃ with the loach section through temperature, pressure is 500torr condition pre-freeze 7h;
(3) vacuum freeze drying: the loach that pre-freeze is good carries out vacuum freeze drying through following 3 sections different temperatures, pressure: first paragraph is temperature-5 ℃, pressure 600mtorr, time 7h; Second segment is 15 ℃ of temperature, pressure 250mtorr, time 7h; The 3rd section is 35 ℃ of temperature, pressure 250mtorr, time 9h;
(4) pulverize: be crushed to 35 orders through pulverizer, control is pulverized temperature and is no more than 40 ℃, namely gets loach powder.
Get the test that compares that loach powder that present embodiment makes and traditional diamond-making technique make loach powder, the result, wherein Scavenging action to hydroxyl free radical, ORAC represent that the physiological active functions of loach powder sees the following form:
| Method | Whether contain parasite | Scavenging action to hydroxyl free radical/% | ORAC (ORAC)/μ molg -1 | Drying time/h |
| The present embodiment method | No | 85 | 1085 | 30 |
| The traditional heating seasoning | No | 40 | 610 | 12 |
| The traditional vacuum seasoning | Be | 75 | 950 | 36 |
As seen from table, the loach powder that the technology of the present invention makes does not contain parasite, and Scavenging action to hydroxyl free radical and ORAC (ORAC) all are higher than conventional method, are shorter than the traditional vacuum seasoning drying time, in general, the technology of the present invention method obviously is better than conventional method.
Claims (3)
1. the processing method of a loach powder is characterized in that, its step is as follows:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1-2 centimetre segment, get the loach section;
(2) pre-freeze: be-35 ℃～-45 ℃ with the loach section through temperature, pressure is 450～550torr condition pre-freeze, 6～8h;
(3) vacuum freeze drying: the loach that pre-freeze is good carries out vacuum freeze drying through following 3 sections different temperatures, pressure: first paragraph is temperature-8～-2 ℃, pressure 700～500mtorr, time 6～8h; Second segment is 12～18 ℃ of temperature, pressure 200～300mtorr, time 6～8h; The 3rd section is 32～38 ℃ of temperature, pressure 200～300mtorr, time 8～10h;
(4) pulverize: be crushed to 20～50 orders through pulverizer, control is pulverized temperature and is no more than 40 ℃, namely gets loach powder.
2. the processing method of loach powder according to claim 1 is characterized in that: in step (2), pre-freeze is carried out under the condition of temperature-40 ℃, pressure 500torr, and the pre-freeze time is 7h.
3. the processing method of loach powder according to claim 1, it is characterized in that: in step (3), 3 sections vacuum freeze drying conditions are; First paragraph is temperature-5 ℃, pressure 600mtorr, time 7h; Second segment is 15 ℃ of temperature, pressure 250mtorr, time 7h; The 3rd section is 35 ℃ of temperature, pressure 250mtorr, time 9h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103580058A CN102488242B (en) | 2011-11-14 | 2011-11-14 | Processing method for loach powder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103580058A CN102488242B (en) | 2011-11-14 | 2011-11-14 | Processing method for loach powder |
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| CN102488242A CN102488242A (en) | 2012-06-13 |
| CN102488242B true CN102488242B (en) | 2013-01-09 |
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| CN2011103580058A Expired - Fee Related CN102488242B (en) | 2011-11-14 | 2011-11-14 | Processing method for loach powder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104814468A (en) * | 2015-01-12 | 2015-08-05 | 朱绿定 | Processing method for loach powder |
| CN109645376A (en) * | 2019-01-09 | 2019-04-19 | 嘉兴市泽宇宠物用品有限公司 | A kind of dry production technology of the loach retaining synovia |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122210A (en) * | 1994-11-01 | 1996-05-15 | 李宁 | Production of eel powder by ultralow temperature freeze drying technique |
| CN1126597A (en) * | 1995-07-11 | 1996-07-17 | 上海长阳生化制药厂 | Loach powder and its prepn process and application |
| JP3117453B2 (en) * | 1989-10-18 | 2000-12-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴイ | Liquid crystal display |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03117453A (en) * | 1989-09-28 | 1991-05-20 | Minoru Azuma | Preservation and transportation of ells and loaches |
| CN1217672C (en) * | 2000-06-05 | 2005-09-07 | 华中科技大学 | Medicine for preventing and curing hepatitis prepared from mudlump and its preparing |
-
2011
- 2011-11-14 CN CN2011103580058A patent/CN102488242B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3117453B2 (en) * | 1989-10-18 | 2000-12-11 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴイ | Liquid crystal display |
| CN1122210A (en) * | 1994-11-01 | 1996-05-15 | 李宁 | Production of eel powder by ultralow temperature freeze drying technique |
| CN1126597A (en) * | 1995-07-11 | 1996-07-17 | 上海长阳生化制药厂 | Loach powder and its prepn process and application |
Non-Patent Citations (4)
| Title |
|---|
| 武昌鱼真空冷冻升华干燥工艺的研究;陈学玲 等;《湖北农业科学》;20060531;367-369 * |
| 泥鳅肉冻干粉中微量元素的测定;金雪梅;《世界元素医学》;20050930;29-31 * |
| 金雪梅.泥鳅肉冻干粉中微量元素的测定.《世界元素医学》.2005,29-31. |
| 陈学玲 等.武昌鱼真空冷冻升华干燥工艺的研究.《湖北农业科学》.2006,367-369. |
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