An investigation on standardization of drying technology for Dutch roses was
undertaken with objective to determine optimum stage of flower harvest for drying, to
study performance of different desiccants for embedded drying, to evaluate different
drying methods for better quality dried flowers, to identify most suitable variety for
drying and to study effect of storage on dry flowers.
Drying of flowers at half bloom stage by embedding in silica gel recorded
highest score for colour (3.40), appearance (3.10) and texture (3.26) in comparison
with tight bud stage. ‘Lambada’ dried at half bloom stage by embedding in silica gel
were found to be best in maintaining colour (3.74), appearance (3.47) and texture
(3.63). Drying of half bloom stage flowers in silica gel required lesser number of days
(4.49) than drying in other desiccants. Flowers of ‘Lambada’ took minimum number
of days (4.94) when dried with silica gel as embedding medium.
Flowers dried at 40°C in hot air oven with silica gel were more acceptable for
colour (3.48), appearance (3.50) and texture (3.23). Flowers dried by non-embedding
method took least time (52.32 hours) for drying compared to embedded method.
Flowers of ‘Lambada’ dried without embedding took least time for drying (52.07
hours) compared to other cultivars.
Quality parameters such as colour (3.48), appearance (3.51) and texture (3.29)
were superior in flowers dried for 2.5 minutes in microwave oven by embedding in
silica gel. Flowers of ‘Lambada’ dried for 2.5 minutes by embedding in silica gel was
best for overall acceptability. Flowers stored in cardboard boxes without any lining
proved to be better than those stored by inserting in polythene covers with respect to
retention of colour on storage. Varietal difference was significant for retention of
colour on storage wherein ‘Lambada’ retained the colour for long time.
An investigation on standardization of drying technology for Dutch roses wasundertaken with objective to determine optimum stage of flower harvest for drying, tostudy performance of different desiccants for embedded drying, to evaluate differentdrying methods for better quality dried flowers, to identify most suitable variety fordrying and to study effect of storage on dry flowers.Drying of flowers at half bloom stage by embedding in silica gel recordedhighest score for colour (3.40), appearance (3.10) and texture (3.26) in comparisonwith tight bud stage. ‘Lambada’ dried at half bloom stage by embedding in silica gelwere found to be best in maintaining colour (3.74), appearance (3.47) and texture(3.63). Drying of half bloom stage flowers in silica gel required lesser number of days(4.49) than drying in other desiccants. Flowers of ‘Lambada’ took minimum numberof days (4.94) when dried with silica gel as embedding medium.Flowers dried at 40°C in hot air oven with silica gel were more acceptable forcolour (3.48), appearance (3.50) and texture (3.23). Flowers dried by non-embeddingmethod took least time (52.32 hours) for drying compared to embedded method.Flowers of ‘Lambada’ dried without embedding took least time for drying (52.07hours) compared to other cultivars.Quality parameters such as colour (3.48), appearance (3.51) and texture (3.29)were superior in flowers dried for 2.5 minutes in microwave oven by embedding insilica gel. Flowers of ‘Lambada’ dried for 2.5 minutes by embedding in silica gel was
best for overall acceptability. Flowers stored in cardboard boxes without any lining
proved to be better than those stored by inserting in polythene covers with respect to
retention of colour on storage. Varietal difference was significant for retention of
colour on storage wherein ‘Lambada’ retained the colour for long time.
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