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Comparison of two Pithecellobium gum exudates |
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| Authors: | Gladys Le n De Pinto Maritza Martí nez Omaira Guti rrez De Gotera Antonio Vera Carlos Rivas Edgar Ocando |
| Affiliation: | * Centro de Investigaciones en Química de los Productos Naturales, Facultad de Humanidades y Educación, Maracaibo, Apartado 526, Venezuela † Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1010, Venezuela |
| Abstract: | Pithecellobium saman and Pithecellobium mangense exudate a yellow clear gum. The gums are both dextrorotatory. The acidity of these gums is very similar. Galactose and arabinose are the major neutral sugar constituents. The high content of rhamnose in P. saman gums contrasts with the absence of this methyl pentose in P. mangense gum. 13C-NMR spectra of the gums studied showed interesting structural features of these complex polymers. |
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