ICAR Research Data Repository for Knowledge Management

Moisture sorption isotherm of Kodbale, a popular Indian spicy savoury was found to be sigmoidal in shape; typical of a starchy food. The equilibrium moisture content at 56% RH was found to be 10.01% (dry basis), which was critical from the point of view of crispness and acceptability. The Brunnauer-Emmett-Teller (BET) and Guggenheim-Anderson-de Boer (GAB) - monolayer moisture content was 4.60%. The product packed in polyamide, based coextruded film and metallized polyester-polyethylene laminate with ambient air and nitrogen gas flushing indicated shelf-life of 60 to 80 days, when stored at 38°C and 90% RH. At 27°C and 65% RH storage condition, the shelf-life was about 120 days. Gas flushing and polyamide based material gave added protection against deteriorative changes.