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S-138599_COMPLETO.pdf

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224 PLANTES ALIMENTAIRES DES PAYS CHAUDS.<br />

Voici, d'après Payen, la composition de sa racine :<br />

Fécule 23.10<br />

Sucre, pect ine, gomme 6.53<br />

Cellulose, pectose, acide pectiquc 1.50<br />

Matières azotées 1.17<br />

Matières grasses 0.40<br />

Sels minéraux 0.65<br />

Eau 07.65<br />

100.00<br />

Ces diverses substances sont alliées à un principe actif,<br />

^~y /4<br />

in vTAl^L<br />

m<br />

li-iHIT<br />

Fig. 34. — Rameau de manioc à feuilles entières.<br />

vénéneux, très volatil l'acide cyanhydiïque (acide prussi-

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