GERANIOL BETA-D-GLUCOSIDE - OCCURRENCE AND SYNHESIS IN ROSE FLOWERS

The β-d-glucosides of geraniol, nerol and citronellol have been isolated from the flowers of the Hybrid Tea rose Lady Seton". The formation of both free monoterpenes and of the monoterpene β-d-glucosides was followed as a function of flower maturation. Little fre or combined monoterpene is present until the flowers begin to open when accumulation of both free and bound monoterpene occurs. Both forms are present at maximum levels of 100-200 μg monoterpene per gramme wet weight petals although the maximum levels of monoterpene β-d-glucosides occur at an earlier stage of flower maturity than do those of the free monoterpenes. © 1970."