CN102488242A - Processing method for loach powder - Google Patents
Processing method for loach powder Download PDFInfo
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- CN102488242A CN102488242A CN2011103580058A CN201110358005A CN102488242A CN 102488242 A CN102488242 A CN 102488242A CN 2011103580058 A CN2011103580058 A CN 2011103580058A CN 201110358005 A CN201110358005 A CN 201110358005A CN 102488242 A CN102488242 A CN 102488242A
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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 a kind of processing method of food, particularly a kind of processing method 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.The tradition traditional Chinese medical science is also thought loach meat or all can be used as medicine, have nourishing Yin and clearing heat, invigorate the spleen and benefit qi, 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 from loach, extracts, 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 physiologically active ingredient such as medicinal, but its activity receives factor such as high temperature easily and reduces.Loach lives in the bottom of water usually simultaneously, and parasite very easily colonizes in the loach body, like clonorchis sinensis, Paragonismus westermani, tapeworm, echinococcus, angiostrongylus cantonensis, trichina etc.Parasite often colonizes in positions such as the gill, alimentary canal, body surface.Eat loach raw and then can cause parasite to get into human body, cause whole body multisystem, organ lesion.
Application number is that 95108392.9 Chinese publication document disclosed method mainly adopts with loach directly or rub the back oven dry; Its bake out temperature reaches 100 ℃, or through drying 12-14 hours below 60 ℃, processes the loach powder through pulverizing again; For prolonging the loach powder shelf-life; Also passed through 100-130 ℃ sterilization, though above processing method can be killed parasite, dry moisture through high temperature, 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 a foods processing technique, and its principle is that food is freezed earlier, under higher vacuum, through the ice crystal sublimation moisture is removed the method that obtains drying then, is usually used in the kept dry of microorganism fungus kind.Adopt the dry loach of traditional vacuum freeze-drying method, though 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 the deficiency to prior art, and the processing method of the residual loach powder of more reasonable, 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 through following technical scheme.The present invention is a kind of processing method of loach powder, is characterized in, its step is following:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1-2 centimetre segment, get the loach section;
(2) pre-freeze: is-35 ℃~-45 ℃ with the loach section through temperature, and 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 section is temperature-8~-2 ℃, pressure 700~500mtorr, time 6~8h; Second section 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 ℃, promptly gets the loach powder.
In the processing method technical scheme of above-described loach powder, further optimized 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 do; First section is temperature-5 ℃, pressure 600mtorr, time 7h; Second section 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 big ice crystal in the loach body, and the time of being convenient to follow-up vacuum freeze drying shortens.
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 drying at a lower temperature fast again, farthest keep the active component in the loach, process high activity more after crushed, 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,, and do not constitute restriction its right so that those skilled in the art understands the present invention further.
Embodiment 1, a kind of processing method of loach powder, and its step is following:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1 centimetre segment, get the loach section;
(2) pre-freeze: is-35 ℃ with the loach section through temperature, and 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 section is temperature-8 ℃, pressure 700mtorr, time 6h; Second section 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 ℃, promptly gets the loach powder.
Embodiment 2, a kind of processing method of loach powder, and its step is following:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 2 centimetres segment, get the loach section;
(2) pre-freeze: is-45 ℃ with the loach section through temperature, and 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 section is temperature-2 ℃, pressure 500mtorr, time 8h; Second section 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 ℃, promptly gets the loach powder.
Embodiment 3, a kind of processing method of loach powder, and its step is following:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 2 centimetres segment, get the loach section;
(2) pre-freeze: is-40 ℃ with the loach section through temperature, and 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 section is temperature-5 ℃, pressure 600mtorr, time 7h; Second section 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 ℃, promptly gets the loach powder.
Get the test that compares that loach powder that present embodiment makes and traditional diamond-making technique make the loach powder, the result, wherein hydroxy radical clearance rate, ORAC represent that the physiological active functions of loach powder sees the following form:
Method | Whether contain parasite | Hydroxy radical clearance rate/% | ORAC (ORAC)/μ molg -1 | Drying time/h |
The present embodiment method | Not | 85 | 1085 | 30 |
The traditional heating seasoning | Not | 40 | 610 | 12 |
The traditional vacuum seasoning | Be | 75 | 950 | 36 |
Can know by table; The loach powder that technology of the present invention makes does not contain parasite, and hydroxy radical clearance rate and ORAC (ORAC) all are higher than conventional method, are shorter than the traditional vacuum seasoning drying time; In general, technical method of the present invention obviously is superior to conventional method.
Claims (3)
1. the processing method of a loach powder is characterized in that, its step is following:
(1) pre-treatment: get loach, decaptitate, go internal organ, be cut into 1-2 centimetre segment, get the loach section;
(2) pre-freeze: is-35 ℃~-45 ℃ with the loach section through temperature, and 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 section is temperature-8~-2 ℃, pressure 700~500mtorr, time 6~8h; Second section 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 ℃, promptly gets the 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 is characterized in that: in step (3), 3 sections vacuum freeze drying conditions do; First section is temperature-5 ℃, pressure 600mtorr, time 7h; Second section is 15 ℃ of temperature, pressure 250mtorr, time 7h; The 3rd section is 35 ℃ of temperature, pressure 250mtorr, time 9h.
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CN2011103580058A CN102488242B (en) | 2011-11-14 | 2011-11-14 | Processing method for loach powder |
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CN2011103580058A CN102488242B (en) | 2011-11-14 | 2011-11-14 | Processing method for loach powder |
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CN102488242B CN102488242B (en) | 2013-01-09 |
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Cited By (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 (4)
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 |
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 |
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 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE69006570T2 (en) * | 1989-10-18 | 1994-08-04 | Philips Nv | Liquid crystal display device. |
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Patent Citations (4)
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 |
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 |
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 |
Non-Patent Citations (2)
Title |
---|
金雪梅: "泥鳅肉冻干粉中微量元素的测定", 《世界元素医学》 * |
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》 * |
Cited By (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 |
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