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Madhava, M.
- Evaluation of the Quality Parameters of the Turmeric Rhizomes Dried on Different Floors and Conditions
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Authors
Affiliations
1 Agricultural College, Jagtial, Karimnagar (Telangana), IN
2 College of Agricultural Engineering, Bapatla, Guntur (A.P.), IN
1 Agricultural College, Jagtial, Karimnagar (Telangana), IN
2 College of Agricultural Engineering, Bapatla, Guntur (A.P.), IN
Source
International Journal of Agricultural Sciences, Vol 12, No 2 (2016), Pagination: 302-308Abstract
Turmeric is an important commercial spice crop grown in India and it is named as "Indian saffron". Turmeric is grown in tropical countries like India, Pakistan, Myanmar, Chile, Peru, El Salvador, Japan, China, Sri Lanka, Bangladesh, Indonesia, Taiwan, Jamaica, Thailand and West Indies. The quality of turmeric powder depends upon the initial quality of rhizomes and onfarm processing of turmeric rhizomes which effects curcumin content, organoleptic characteristics, size and general appearance of the dried turmeric rhizomes. The on farm post harvest processing operations consists of washing, curing, drying, polishing, grading and colouring. Curing is a process of cooking the raw rhizomes in hot water to obtain attractive colour, characteristic aroma, destroy the viability of the fresh rhizomes and obviate the raw odour, reduces the time of drying, ensures an even distribution of colour in the rhizomes and gives a better quality product by gelatinisation of the starch (Purseglove and Brown, 1981). The study was conducted to obtain fundamental data on the effect of different floor materials on open yard sun drying and polyhouse drying. It is observed that the moisture content of turmeric fingers increases with increase in temperature of curing and curing time. At the time of 90 minutes the moisture contents were 84.41, 84.48, 84.80 and 85.77 per cent (w.b.) at the curing temperatures of 60, 70, 80 and 90°C, respectively. The moisture contents increased from the initial moisture content of 79.56 per cent (w.b.). It is observed that the floor materials affected the drying time marginally under the conditions of experiments, varied considerably from one method to the other. It is concluded that polyethylene sheet followed by tarpaulin are better floor materials to reduce the drying time and for good quality of turmeric powder.Keywords
Turmeric Rhyzomes, Polyhouse, Open Sun Drying, Curing, Floor Materials, Curcumin Content.
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