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Extraction, Identification and Determination of Tannin from Iraqi Pomegranate peels and cores by Aqueous solutions | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 11, Issue 4, 2011, Pages 83-93 PDF (0 K) | ||
| Author | ||
| Ismail K.Al-Hitti | ||
| Abstract | ||
| High percentages of tannin were obtained from Iraqi pomegranate peels and cores by aqueous solutions extraction. The extracts were identified by FTIR and UV-Vis spectrophotometry and found to be as tannic acid formed of two units of gallic acid. The proposed combination of extracted tannic acid with copper was in the 1:1 mole ratio as a result of reduction copper (II) to copper (I) by tannic acid and combination with it to form copper tannate. This mole ratio was supported by the volatilization method of copper tannate at 5000C in addition to iodimetric titration methods. | ||
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