ISO 9648:1988
Sorghum — Determination of tannin content
OVERVIEW
The method consists in extraction by shaking with dimethylformamide, then after centrifuging, addition of ferric ammonium citrate and ammonia to an aliqiot part of the supernatant liquid and spectrometric determination, at 525 nm, of the absorbance of the solution thus obtained, and determing of the tannic content using a calibration curve prepared using tannic acid.
COMMENTS
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PRODUCT DETAILS
| Status | Current |
|---|---|
| Edition | 1988 |
| No. of Pages | 3 |
| ICS Classification | 67.060 Cereals, pulses and derived products |
| Committee | ISO/TC 34/SC 4 |
| Available for Purchase | For sale in Singapore only |
| Adoption | ISO |