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Abstract

STUDIES ON TANNIN EXTRACT, FROM CAESALPINIA CORIARIA AND ANACARDIUM OCCIDENTALIS, USING DIFFERENT EXTRACTION TECHNIQUES AND SPECTROPHOTOMETRIC QUANTIFICATION

B. Lenin Kumar, N. Lokeswari

Abstract

Tannins are a large class of complex phenolic compounds, comprising hydrolysable, condensed and complex. Extracts of Caesalpinia coriaria and Anacardium occidentalis was analysed by quantitative spectrophotometric method. Three extraction methods were used in this study and results were compared respectfully, under reflux extraction, microwave extraction and ultra sonication. From this study it can be observed that, for all investigated plants, Anacardium occidentalis has highest concentration of tannins and that microwave extraction is the best choice for extraction technique.

Keywords: Caesalpinia coriaria, Anacardium occidentalis, tannins, spectrophotometric analysis, under reflux extraction, microwave extraction and sonication.


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