Effectiveness of convective and microwave drying to rehydration and antioxidant stability from Curculigo orchioides rhizome

摘要

Curculigo orchioides rhizomes are mucilaginous in nature and well known with a wide range of pharmacological activities. Objective of this study focused on the effectiveness of convective and microwave drying to rehydration ratio and antioxidant stability from C. orchioides rhizome. Different parameters of convective (55°C, 65°C and 75°C) and microwave (120W, 140W and 160W) drying methods were examined on C. orchioides rhizomes. The final moisture content (6.5) of this dried herbal tea was targeted to ensure its stability during 12 months of storage. Results revealed that microwave drying at 140W was appropriate for dehydration of this valuable herb. This study was conducted in 2019 in Labone Scientific Co. Ltd, Vietnam.