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CN1082409A - The extracting method of medical natural hirudiu - Google Patents

The extracting method of medical natural hirudiu Download PDF

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Publication number
CN1082409A
CN1082409A CN 92107076 CN92107076A CN1082409A CN 1082409 A CN1082409 A CN 1082409A CN 92107076 CN92107076 CN 92107076 CN 92107076 A CN92107076 A CN 92107076A CN 1082409 A CN1082409 A CN 1082409A
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China
Prior art keywords
hirudo
hours
hirudin
solution
slurry
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CN 92107076
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Chinese (zh)
Inventor
胡维明
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Individual
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Individual
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Priority to CN 92107076 priority Critical patent/CN1082409A/en
Publication of CN1082409A publication Critical patent/CN1082409A/en
Pending legal-status Critical Current

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Abstract

The extracting method of medical natural hirudiu relates to the extraction of animal effective ingredient.The present invention adopts and extract hirudin from whole Hirudo, regulate pH value to 4.4-4.6 after earlier the Hirudo slurry being heated, the re-adjustment pH value to 6-7 of lowering the temperature again, centrifuge dehydration then, residue normal saline cyclic washing, mother solution dialysis back is used water dissolution with 95% above ethanol precipitation behind the precipitation vacuum drying, dialysis once more, last vacuum drying obtains elaboration.The hirudin process of extracting with the present invention is easy, and end product quality is qualified, and yield brings up to 4/1000ths, thereby greatly reduces product cost.

Description

The extracting method of medical natural hirudiu
The extracting method of medical natural hirudiu relates to the extraction of animal active ingredient.
Nearly one over 100 years, and people have affirmed that from being stung by Hirudo to inhale the phenomenon that The blood streamed down of back the Hirudo body contains anticoagulative substance.John B, professor Haycrafft of Wales country medical college find, the doctor trematodiasis is pharyngeal to have a heat-proof water solublity anticoagulant active material, F.Frany had separated purer similar active substance in 1903, and C, Jacoby were with its called after hirudin (hirudin) in 1904.Long-term next, owing to extract the resource-Hirudo of hirudin, though it is wide to distribute, rareness is concentrated, is difficult to again catch, and therefore can't put into production; Hirudin is again at the active substance that many special roles are medically arranged, state's exterior-applied liquid medicine-acetone mixed solution extracts, ethanol precipitation, cation exchange column and gel filtration chromatography method of purification extract refining hirudin, but this method complex steps, reagent cost an arm and a leg; Also have some major companies to drop into a huge sum of money, with the analog of gene engineering method recombinant natural hirudin, therefore the hirudin price used of every gram reagent up to 80,000 dollars about, and the home and abroad does not supply pharmaceutical hirudin at present.
Not only method is easy for the extracting method of the present invention's development, and reagent is cheap, and has improved the yield of hirudin.
The technical scheme that reaches the foregoing invention purpose is: integral body was smashed pulp to pieces after Hirudo was cleaned impurity such as removing earth, the Hirudo slurry is heated to 60-80 ℃, and kept 2-3 minute, the glacial acetic acid of adding 10% is adjusted pH value at 4.4-4.6 in the Hirudo slurry after heating, be cooled to 25-30 ℃ immediately, add 10% Na again 2CO 3Adjust pH value at 6-7, Hirudo is starched centrifugal collection mother solution, the normal saline lixiviate of residue adding 0.9% 2-3 time, collect whole lixiviating solution, with this mother solution dialysis 36 hours, changed water once every 12 hours, dialysis solution is with the ethanol precipitation more than 95%, adding 95% above ethanol earlier, to make its content be 61%, placed 12 hours, the supernatant that inclines, it is 85% that the ethanol that adds same concentration again makes its content, placed 24 hours, obtain hirudin precipitation, the precipitation cold drying gets crude product, and crude product was dialysed 16 hours after with an amount of second distillation water dissolution again, the sterilization of dialysis solution sucking filtration, elaboration is made in lyophilization.
The general hirudin that extracts is to get the head half to smash the back to pieces and extract, and the whole Hirudo that the present invention adopts, can make full use of like this Hirudo in the plain capsule of 11 couple of the intravital storage food of Hirudo divide must hirudin, thereby can improve the yield of hirudin greatly.
With 1 kilogram of Hirudo, all to smash to pieces and be muddy, the Hirudo slurry is heated to 75 ℃, keeps 3 minutes, with 10% glacial acetic acid accent pH value to 4.5, on the rocksly then is cooled to 30 ℃, uses 10%Na 2CO 3Transfer pH value to 6.5, the centrifuge dehydration of Hirudo slurry, collect mother solution, residue is washed with a small amount of normal saline, stir centrifuge dehydration, repeat washery slag once, collect three times solution, the bag filter of packing into was dialysed 36 hours, changed water once in per 12 hours, dialysis solution adds 95% above ethanol makes concentration reach 61%, precipitates 12 hours, collects the supernatant, the ethanol that adds same concentration again makes concentration reach 85%, precipitate 48 hours, collecting precipitation, vacuum drying under 30 ℃ of temperature conditions, remove the ethanol that contains, the exsiccant precipitation bag filter of packing into after with 100ml second distillation water dissolution was dialysed 16 hours, changed water once in 8 hours, dialysis solution gets 4.1 gram finished products with G6 funnel sucking filtration sterilization, filtrate vacuum drying.
The medical natural hirudiu process of extracting with the inventive method is simple, and the yield of hirudin brings up to 4/1000ths, thereby greatly reduces day production cost of trematodiasis element.

Claims (1)

1, a kind of extracting method of medical natural hirudiu is used the normal saline lixiviate, the invention is characterized in:
(1) with behind the impurity such as the clean removal of Hirudo earth, integral body is smashed into muddy to pieces,
(2) the Hirudo slurry is heated to 60-80 ℃, and keeps 2-3 minute,
(3) glacial acetic acid of adding 10% is adjusted pH value at 4.4-4.6 in the slurry of the Hirudo after heating, and is cooled to 25-30 ℃ immediately, adds 10%Na again 2CO 3Adjust pH value at 6-7,
(4) the Hirudo slurry is through centrifugal collection mother solution, and whole lixiviating solution are collected in the normal saline lixiviate successively of residue adding 0.9% 2-3 time,
(5) the mother solution dialysis is 36 hours, changes water once every 12 hours,
(6) dialysis solution is with 95% above ethanol precipitation, and adding 95% ethanol earlier, to make its content be 61%, placed 12 hours, and the supernatant that inclines, it is 85% that the ethanol that adds same concentration again makes its content, places 24 hours, obtains the hirudin precipitation,
(7) will precipitate cold drying and get semifinished product,
(8) semifinished product was dialysed 16 hours with an amount of second distillation water dissolution again, the sterilization of dialysis solution sucking filtration, and the solution lyophilization gets elaboration.
CN 92107076 1992-07-28 1992-07-28 The extracting method of medical natural hirudiu Pending CN1082409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92107076 CN1082409A (en) 1992-07-28 1992-07-28 The extracting method of medical natural hirudiu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 92107076 CN1082409A (en) 1992-07-28 1992-07-28 The extracting method of medical natural hirudiu

Publications (1)

Publication Number Publication Date
CN1082409A true CN1082409A (en) 1994-02-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 92107076 Pending CN1082409A (en) 1992-07-28 1992-07-28 The extracting method of medical natural hirudiu

Country Status (1)

Country Link
CN (1) CN1082409A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102603890A (en) * 2012-03-23 2012-07-25 韶关市颐林泉生物科技有限公司 Method for extracting hirudin
CN102952189A (en) * 2012-10-19 2013-03-06 旌德县振亚水产养殖有限公司 Hirudin extraction bottle and hirudin extraction method
CN103417580A (en) * 2013-09-04 2013-12-04 南宁市净雪皇生物工程有限公司 Method for preparing poecilobdella manillensis medium-high activity anticoagulant crude product
CN103784477A (en) * 2014-02-08 2014-05-14 杭州桐君堂生物科技有限公司 Preparation process of high-activity Hirudo micropowder for direct oral administration
CN105076586A (en) * 2014-05-15 2015-11-25 钱如力 A Polypeptide lucid ganoderma tea and preparation method thereof
CN106387309A (en) * 2016-08-31 2017-02-15 西安若翰生物饲料有限公司 High-efficient bio-fermented feed
CN107337729A (en) * 2017-07-25 2017-11-10 重庆多普泰制药股份有限公司 A kind of thick extracting method of hirudin
CN113073093A (en) * 2021-04-25 2021-07-06 山东中医药大学 Leech fibrinolytic active protein and preparation method thereof
CN116725928A (en) * 2023-08-14 2023-09-12 广东尚品汇生物科技有限公司 Anti-allergy acne-removing traditional Chinese medicine composition, and preparation method and application thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102603890A (en) * 2012-03-23 2012-07-25 韶关市颐林泉生物科技有限公司 Method for extracting hirudin
CN102952189A (en) * 2012-10-19 2013-03-06 旌德县振亚水产养殖有限公司 Hirudin extraction bottle and hirudin extraction method
CN103417580A (en) * 2013-09-04 2013-12-04 南宁市净雪皇生物工程有限公司 Method for preparing poecilobdella manillensis medium-high activity anticoagulant crude product
CN103417580B (en) * 2013-09-04 2015-07-22 南宁市净雪皇生物工程有限公司 Method for preparing poecilobdella manillensis medium-high activity anticoagulant crude product
CN103784477A (en) * 2014-02-08 2014-05-14 杭州桐君堂生物科技有限公司 Preparation process of high-activity Hirudo micropowder for direct oral administration
CN103784477B (en) * 2014-02-08 2016-08-31 杭州桐君堂生物科技有限公司 High activity is directly administered orally the manufacturing process of Hirudo micropowder
CN105076586A (en) * 2014-05-15 2015-11-25 钱如力 A Polypeptide lucid ganoderma tea and preparation method thereof
CN106387309A (en) * 2016-08-31 2017-02-15 西安若翰生物饲料有限公司 High-efficient bio-fermented feed
CN107337729A (en) * 2017-07-25 2017-11-10 重庆多普泰制药股份有限公司 A kind of thick extracting method of hirudin
CN113073093A (en) * 2021-04-25 2021-07-06 山东中医药大学 Leech fibrinolytic active protein and preparation method thereof
CN116725928A (en) * 2023-08-14 2023-09-12 广东尚品汇生物科技有限公司 Anti-allergy acne-removing traditional Chinese medicine composition, and preparation method and application thereof

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