Solar drying of coriander and methi leaves.

Abstract

Drying of methi (Fenugreek leaves) and coriander leaves was performed in a forced circulation solar hot-air-dryer. Drying of methi was carried out at 40, 45, 50 and 60°C, while coriander was dried at 40, 45 and 50°C, Drying characteristic curves were drawn and drying equations were developed to understand the drying behaviour of these vegetables and to undertake appropriate solar dryer design. Organoleptic quality attributes like colour, appearance and taste of these dried samples were found acceptable to the respondents and solar-dried samples were appreciated for retaining fragrance and utility in off-seasons.