ISHS Acta Horticulturae 679: III WOCMAP Congress on Medicinal and Aromatic Plants - Volume 5: Quality, Efficacy, Safety, Processing and Trade in Medicinal and Aromatic Plants
BETA-GLUCOSIDASE ACTIVITY AND SCENT PRODUCTION IN SOME FLOWERS |
| Authors: | O. Suntornwat, S. Koocharoensap |
| Keywords: | non-scented glycoside precursors, beta-glucosidase, scent emission |
| Abstract:
In some flowers the aromatic compounds are stored as non-scented glycoside precursors in the vacuoles. The removal of the sugar moiety from these compounds was facilitated by the activity of the  -glucosidases in floral tissue and is correlated with scent production.
Crude extracts from different stages of three scented flowers (Wrightia religiosa, Ervatamia coronaria and Gardenia jasminoides) were assayed for -glucosidase using p-nitrophenyl--D-glucoside (p-NGP) as the substrate.
Different kinds of flowers had different level of -glucosidase activity with the highest level found in Wrightia religiosa. The activity of this enzyme was detected in closed buds and was found to increase significantly in open flowers.
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