MY161037A - Purification of kojic acid - Google Patents
Purification of kojic acidInfo
- Publication number
- MY161037A MY161037A MYPI2012000679A MYPI2012000679A MY161037A MY 161037 A MY161037 A MY 161037A MY PI2012000679 A MYPI2012000679 A MY PI2012000679A MY PI2012000679 A MYPI2012000679 A MY PI2012000679A MY 161037 A MY161037 A MY 161037A
- Authority
- MY
- Malaysia
- Prior art keywords
- kojic acid
- acid solution
- concentrated
- solvents
- crystals
- Prior art date
Links
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
THE PRESENT INVENTION PROVIDES A METHOD OF PURIFYING KOJIC ACID FROM FERMENTATION BROTH BY REPEATED CRYSTALLIZATION IN SOLVENTS TO OBTAIN SUITABLE KOJIC ACID CRYSTAL SIZE AND STRUCTURE, WHICH IS FREE FROM IMPURITIES SUCH AS PIGMENTS, METALS AND THE LIKE. ACCORDINGLY, THE PRESENT METHOD COMPRISES THE STEPS OF: (I) OBTAINING KOJIC ACID SOLUTION FROM A FERMENTATION BROTH; (II) DISSOLVING THE KOJIC ACID SOLUTION IN A SOLVENT OR A MIXTURE OF SOLVENTS WITH APPROPRIATE VOLUME TO MAINTAIN THE KOJIC ACID SOLUTION AT A CONCENTRATION OF 80 G/L TO 100 G/L; (III) AGITATING THE CONCENTRATED KOJIC ACID SOLUTION AT 50 TO 100 RPM; (IV) REMOVING THE SOLVENT OR MIXTURE OF SOLVENTS CONTAINED IN THE CONCENTRATED KOJIC ACID SOLUTION BY WAY OF EVAPORATION AT 50°C TO 80°C; (V) MAINTAINING THE TEMPERATURE OF THE CONCENTRATED KOJIC ACID SOLUTION AT 5°C TO 35°C FOR UP TO 10 HOUR TO FORM KOJIC ACID CRYSTALS; (VI) SEPARATING THE KOJIC ACID CRYSTALS; AND (VII) REPEATING THE STEPS OF (II) THROUGH (VI) FOR MORE THAN ONCE IN ORDER TO FORM HIGH PURITY KOJIC ACID CRYSTALS, WHICH ARE FREE FROM IMPURITIES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI2012000679A MY161037A (en) | 2012-02-15 | 2012-02-15 | Purification of kojic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MYPI2012000679A MY161037A (en) | 2012-02-15 | 2012-02-15 | Purification of kojic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
MY161037A true MY161037A (en) | 2017-04-14 |
Family
ID=59562680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI2012000679A MY161037A (en) | 2012-02-15 | 2012-02-15 | Purification of kojic acid |
Country Status (1)
Country | Link |
---|---|
MY (1) | MY161037A (en) |
-
2012
- 2012-02-15 MY MYPI2012000679A patent/MY161037A/en unknown
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