ISHS Acta Horticulturae 181: III International Symposium on Postharvest Physiology of Ornamentals
CRYO-DRYING OF DIANTHUS CARYOPHYLLUS L. FLOWERS |
| Authors: | H.F. Wilkins, S.L. Desborough |
| Abstract:
Several cultivars of carnation (Dianthus caryophyllus L.) flowers were successfully cryo-dried and remained naturalistic in appearance after being placed in -80°C for 12 hours and then placed in a freeze-drier for 7 days. Glycerine (G), clove oil (CO), ethylene glycol (EG), G + dimethylsulfoxide (DMSO), CO + DMSO and EG + DMSO were unsuccessful in an attempt to render the flowers and stems more flexible, less susceptible to breakage and still remain aesthetically acceptable. The above materials were used as 2 second dips (with or without a wetting agent) as natural stem translocation or translocation uptake under vacuum before cryo-drying. These chemicals also failed as sprays to render the tissue flexible after cryo-drying. | |
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