Volume : IV, Issue : I, January - 2014

Effect of embedding media, temperature and durations on hot air oven drying of Rose (Rosa hybrida L.) cv. ‘First Red’

B. S. Dilta, Tushar Bala Behera, Y. C. Gupta, R. Bhalla, B. P. Sharma

Abstract :

The studies on effect of embedding media, temperature and durations on drying of cut flowers of Rose cv. ‘First Red’ in hot air oven were conducted in the Department of Floriculture and Landscaping, Dr YS Parmar University of Horticulture & Forestry, Nauni (Solan) HP during 2008-2009 to find out the most suitable embedding mediUM, temperature and duration for hot air oven drying of rose. The cut flowers of Rose cv. ‘First Red’ at half bloom stage with 10 cm long stems were embedded in five drying media namely river bed sand, silica gel, borax, mixture of river bed sand and silica gel (50:50, v/v) and mixture of river sand and borax (50:50, v/v). After embedding, the flowers were given different temperature treatments (35oC, 40oC and 45oC) and durations (36 hours, 48 hours, 60 hours and 72 hours) in hot air oven. In total, there were 60 treatment combinations replicated thrice. The data recorded on various parameters were subjected to statistical analysis with CRD (factorial).

The results obtained show that maximum moisture loss (86.97%) was recorded in flowers embedded in silica gel and dried at 45oC for 72 hours and minimum (33.28%) in river bed sand and kept at 35oC for 36 hours. Maximum anthocynin content (1.10 mg/g) was recorded when flowers were embedded in borax and dried at 35oC for 36 hours and minimum (0.74 mg/g) in the mixture of silica gel and sand and dried at 45oC for 72 hours. The maximum total sugars (9.64%) were recorded in the flowers embedded in silica gel and dried at 45oC for 72 hours and minimum (6.27%) in river bed sand embedded flowers dried at 35oC for 36 hours. The quality evaluation of the dried cut rose flowers scored maximum points (81.99) when flowers were embedded in borax and dried at 35oC for 36 hours and minimum points (39.93) for the flowers embedded in silica gel and dried at 45oC for 72 hours.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

B.S. Dilta, Tushar Bala Behera, Y. C. Gupta, R. Bhalla, B.P. Sharma Effect of embedding media, temperature and durations on hot air oven drying of Rose (Rosa hybrida L.) cv. ‘First Red’ Indian Journal of Applied Research, Vol.IV, Issue. I


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