Vol. 11, Special Issue 12 (2022)

Author(s):
Manjula Karadiguddi, Venugopal CK, Ramachandra Naik, Angadi SG, Hemalatha S and Nethra P

Abstract:
A study was undertaken to develop the pre-treatments and drying methods for dehydration of shatavari in factorial completely randomised design with three factors viz., types of roots, pre-treatments and drying methods. Observations on various physicochemical parameters were recorded. It was observed that, yellow roots recorded maximum recovery and reconstitution ratio (12.72% and 0.749, respectively) with minimum moisture content and water activity (11.08% and 0.414, respectively). While maximum L value, minimum a* and b* value (58.00, 5.39 and 23.05, respectively) were noticed in white root type. With respect to pre-treatments, steam blanching for five minutes recorded maximum recovery and reconstitution ratio (12.90% and 0.900, respectively) with minimum moisture content and water activity (10.77% and 0.415, respectively). Maximum L and b* values were also noticed in steam blanching for five minutes (58.13 and 26.16, respectively). Further, among the different drying methods maximum recovery and reconstitution ratio (12.22% and 0.843, respectively), minimum moisture content and water activity (10.29% and 0.415, respectively) was found in electric drying. Higher L and b* value while lower a* value was also noticed in electric drying.