JPS54101833A - Purification of blue dyestuff extract - Google Patents
Purification of blue dyestuff extractInfo
- Publication number
- JPS54101833A JPS54101833A JP741978A JP741978A JPS54101833A JP S54101833 A JPS54101833 A JP S54101833A JP 741978 A JP741978 A JP 741978A JP 741978 A JP741978 A JP 741978A JP S54101833 A JPS54101833 A JP S54101833A
- Authority
- JP
- Japan
- Prior art keywords
- spirulina
- extract
- blue dyestuff
- crude extract
- dyestuff
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
PURPOSE: To prepare a high quality blue dyestuff, economically, by the ultrafiltraction of crude extract of Spirulina.
CONSTITUTION: An aqueous dispersion containing about 5% of Spirulina is centrifuged to afford crude extract having a solid content of about 2.3%. The crude extract is circulated at a flow rate of about 300 1/min. through an ultrafiltration device consisting of coaxial double tubes, wherein the inner tube is composed of a paper- like material coated with a synthetic high polymer. The extract is introduced into the inner tube with inlet- and outlet-pressures of about 3kg/cm2 and 1kg/cm2, respectively. The inorganic salts used in the crude extraction of the dyestuff, and the low-molecular water-soluble colored material (yellow) are removed from the extract, giving a clear concentrated solution of the blue dyestuff. The Spirulina is pref. Spirulina platensis, Spirulina geitleri, etc.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP741978A JPS54101833A (en) | 1978-01-27 | 1978-01-27 | Purification of blue dyestuff extract |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP741978A JPS54101833A (en) | 1978-01-27 | 1978-01-27 | Purification of blue dyestuff extract |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54101833A true JPS54101833A (en) | 1979-08-10 |
Family
ID=11665342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP741978A Pending JPS54101833A (en) | 1978-01-27 | 1978-01-27 | Purification of blue dyestuff extract |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54101833A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59144797A (en) * | 1983-02-07 | 1984-08-18 | Glyco Eiyou Shokuhin Kk | Production of purified cape jasmine pigment |
JPS6043355A (en) * | 1983-08-19 | 1985-03-07 | Glyco Eiyou Shokuhin Kk | Production of refined cacao pigment |
US4992078A (en) * | 1989-02-23 | 1991-02-12 | Sandoz Ltd. | Sulfur dyes and method of preparing same: membrane process |
JP2001190244A (en) * | 2000-01-11 | 2001-07-17 | Tokai Sangyo Kk | Method for producing blue coloring matter from spirulina |
WO2001080910A1 (en) * | 2000-04-20 | 2001-11-01 | Novartis Ag | Coloured ophthalmic product |
WO2012043173A1 (en) * | 2010-09-27 | 2012-04-05 | 理研ビタミン株式会社 | Method for producing gardenia blue pigment |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221032A (en) * | 1975-07-22 | 1977-02-17 | Fuaburikashion E Do Konmerushi | Method of treating anthocyanin extracts |
JPS52134058A (en) * | 1976-04-28 | 1977-11-09 | Dainippon Ink & Chemicals | Extraction of blue color |
-
1978
- 1978-01-27 JP JP741978A patent/JPS54101833A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221032A (en) * | 1975-07-22 | 1977-02-17 | Fuaburikashion E Do Konmerushi | Method of treating anthocyanin extracts |
JPS52134058A (en) * | 1976-04-28 | 1977-11-09 | Dainippon Ink & Chemicals | Extraction of blue color |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59144797A (en) * | 1983-02-07 | 1984-08-18 | Glyco Eiyou Shokuhin Kk | Production of purified cape jasmine pigment |
JPS6043355A (en) * | 1983-08-19 | 1985-03-07 | Glyco Eiyou Shokuhin Kk | Production of refined cacao pigment |
US4992078A (en) * | 1989-02-23 | 1991-02-12 | Sandoz Ltd. | Sulfur dyes and method of preparing same: membrane process |
JP2001190244A (en) * | 2000-01-11 | 2001-07-17 | Tokai Sangyo Kk | Method for producing blue coloring matter from spirulina |
WO2001080910A1 (en) * | 2000-04-20 | 2001-11-01 | Novartis Ag | Coloured ophthalmic product |
US6440411B2 (en) | 2000-04-20 | 2002-08-27 | Novartis, Ag | Ophthalmic product colored with blue alga extract |
WO2012043173A1 (en) * | 2010-09-27 | 2012-04-05 | 理研ビタミン株式会社 | Method for producing gardenia blue pigment |
JP2012067241A (en) * | 2010-09-27 | 2012-04-05 | Riken Vitamin Co Ltd | Method for producing gardenia blue pigment |
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