| Autor: |
DeClercq, D. R., Daun, J. K. |
| Zdroj: |
Journal of the American Oil Chemists' Society; June 1989, Vol. 66 Issue: 6 p788-791, 4p |
| Abstrakt: |
Intact glucosinolates in seeds and meals of rapeseed and canola were isolated and purified on small DEA ion-exchange columns. After being eluted with potassium sulfate the glucosinolates were hydrolyzed with sulfuric acid to produce thioglucose which was determined as a complex with thymol. The method was compared to a gas liquid chromatography (GLC) procedure which determines aliphatic glucosinolates. The extra amount of glucosnilates found (ca. 14 ]gmmol/g oil-free) was equal to the sum of those not determined by GLC. The thymol method had a standard error of ±3 µmol/g compared with a standard error of ±1 µmol/g for the GLC procedure for the same set of 18 samples ranging from 10 µmol/g to 100 µmol/g (oil-free, 8.5% moisture basis) of aliphatic glucosinolates. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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