The colouring matter of the Tamarind seed testa

Rao, P. S. (1948) The colouring matter of the Tamarind seed testa Proceedings of the Indian Academy of Sciences, Section A, 27 (1). pp. 52-55. ISSN 0370-0089

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The tamarind seed testa contains about 32 per cent. of tannins of which 35 per cent. is phlobatannin, the rest being mostly catechol tannin. The phlobatannin yields almost colourless methyl and acetyl derivatives which exhibit marked optical activity, supporting the idea that phlobatannins are probably hydroxy flavan derivatives.

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Deposited On:17 Apr 2011 13:34
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