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Plant Alkaloids Atallah F. Ahmed

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6.1. Calabar bean alkaloids (pyrroloindole ring system)<br />

<strong>Atallah</strong> F. <strong>Ahmed</strong>, PhD 2010<br />

6.1. Calabar bean alkaloids<br />

Calabar beans are the seeds of<br />

Physostigma venenosum, Fabaceae) yields<br />

several alkaloids of Indole type e.g. eserine<br />

or physostigmine (major, 0.3%) and other<br />

minor alkaloids ee.g. g eseramine<br />

<strong>Atallah</strong> F. <strong>Ahmed</strong>, PhD 2010<br />

3<br />

4<br />

5/30/2010<br />

2

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