FIELD: chemical-pharmaceutical industry. SUBSTANCE: ergosterol is prepared from lipid-fat concentrate that is waste of vitamins production from yeast. Method involves treatment of waste with 1-2% potassium hydroxide solution at ratio of lipid concentrate : alkali spirituous solution = 1:12, at boiling for 1 h, not less. EFFECT: increased yield of the end product.
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|---|---|---|---|
| METHOD OF ERGOSTEROL PREPARING | 1993 |
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