THE EFFECT OF RIPENING AND AQUEOUS INCUBATION ON THE YIELD OF DIOSGENIN AND YAMOGENIN FROM THE FRUITS OFBALANITES PEDICELLARIS

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Abstract
The dried fruits of Balanites pedicellaris Milbr. and Schlecht (Balanitaceae) afforded by acid treatment up to 7 % of a mixture of diosgenin (95 %) and yamogenin (5 %) from the fruit wall and up to 0.6 % of diosgenin from the seed. An increase of 8 to 20 % on these yields was obtained by aqueous incubation before acid hydrolysis. The unripe and partially ripe fruits were also examined; the ripe fruit gave the best yield and the wall is the preferred material for commercial processing.

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