MD3099F1 - Procedeu de obtinere a hialuronatului de sodiu, acidului hialuronic si complexului acid hialuronic-proteina - Google Patents
Procedeu de obtinere a hialuronatului de sodiu, acidului hialuronic si complexului acid hialuronic-proteinaInfo
- Publication number
- MD3099F1 MD3099F1 MDA20050349A MD20050349A MD3099F1 MD 3099 F1 MD3099 F1 MD 3099F1 MD A20050349 A MDA20050349 A MD A20050349A MD 20050349 A MD20050349 A MD 20050349A MD 3099 F1 MD3099 F1 MD 3099F1
- Authority
- MD
- Moldova
- Prior art keywords
- hyaluronic acid
- ratio
- stage
- sodium hyaluronate
- acetone
- Prior art date
Links
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a hialuronatului de sodiu, acidului hialuronic si complexului acid hialuronic-proteina, care pot fi utilizate in industria alimentara, farmaceutica si cosmetica. Esenta inventiei consta in aceea ca procedeul include spalarea crestelor de cocosi, gaini cu apa la temperatura de 10...15°C timp de 5...6 ore, maruntirea si deshidratarea lor in acetona sau etanol de 96%, care contine 1% CHCl3, in raport de1:3, dupa care se lasa pentru 6...24 ore la temperatura de 0...4°C, apoi solventul se separa si se efectueaza deshidratarea suplimentara si degresarea cu acetona la fierbere timp de 2 ore, sedimentulobtinut se usuca si se supune extragerii cu solutie apoasa de 1M NaCl in doua stadii: I stadiu la rece la 4...10°C si al II-lea stadiu la incalzire pana la 50...60°C, totodata la I stadiu se efectueaza extragerea in raport de 1:20 de trei ori, se separa reziduul de extract, dupa care se efectueaza sedimentarea acidului hialuronic din extract cu etanol de 96% in raport de 1:3, sedimentul se redizolva si se elimina proteinele din el la incalzire si racire la pH 5,0...5,5, se adauga CHCl3 in raport de 1:1, se separa faza apoasa, se trateaza cu etanol de 96% in raport de 1:3, se separa sedimentulformat de hialuronat de sodiu cu un continut de proteina de cel mult 1%, iar acidul hialuronic se obtine la acidularea cu HCl a solutiei apoase de hialuronat de sodiu; la al II-lea stadiu reziduul obtinut la I stadiu se extrage in raport de 1:3, apoi se sedimenteaza cu acetona obtinand un complex acid hialuronic-proteina cu un continut de proteinade 65%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20050349A MD3099G2 (ro) | 2005-11-29 | 2005-11-29 | Procedeu de obţinere a hialuronatului de sodiu, acidului hialuronic şi complexului acid hialuronic-proteină |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20050349A MD3099G2 (ro) | 2005-11-29 | 2005-11-29 | Procedeu de obţinere a hialuronatului de sodiu, acidului hialuronic şi complexului acid hialuronic-proteină |
Publications (2)
Publication Number | Publication Date |
---|---|
MD3099F1 true MD3099F1 (ro) | 2006-07-31 |
MD3099G2 MD3099G2 (ro) | 2007-02-28 |
Family
ID=36808911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDA20050349A MD3099G2 (ro) | 2005-11-29 | 2005-11-29 | Procedeu de obţinere a hialuronatului de sodiu, acidului hialuronic şi complexului acid hialuronic-proteină |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD3099G2 (ro) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141973A (en) * | 1975-10-17 | 1979-02-27 | Biotrics, Inc. | Ultrapure hyaluronic acid and the use thereof |
RU2055079C1 (ru) * | 1992-02-04 | 1996-02-27 | Научно-производственное акционерное общество "Техкон" | Способ получения препарата гиалуроновой кислоты |
RU2074196C1 (ru) * | 1993-08-23 | 1997-02-27 | Научно-производственная фирма "Нарт" | Способ получения гиалуроновой кислоты |
RU2115662C1 (ru) * | 1997-07-21 | 1998-07-20 | Самойленко Игорь Иннокентьевич | Способ получения гиалуроновой кислоты |
MD1617G2 (ro) * | 2000-03-28 | 2001-08-31 | Государственный Медицинский И Фармацевтический Университет "Nicolae Testemitanu" Республики Молдова | Procedeu de obţinere a acidului hialuronic |
-
2005
- 2005-11-29 MD MDA20050349A patent/MD3099G2/ro not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
MD3099G2 (ro) | 2007-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |