Effects of the concentration of Quercus infectoria galls (Manjakani) extract on moisture content and quality of its freeze-dried product

• Main Authors: Pin, Kar Yong, Chuah, Teong Guan, A., Abdull Rashih, Mat Ali, Rasadah, Choong, Thomas Shean Yaw, Law, C. L.
• Format: Conference or Workshop Item
• Language: English
• Published: Federation of Engineering Institutions of Islamic Countries 2006
• Online Access: http://psasir.upm.edu.my/id/eprint/39541/1/39541.pdf; http://psasir.upm.edu.my/id/eprint/39541/

Freeze-drying is a drying process based on sublimation under vacuum condition. This process minimizes the degradation of the heat-sensitive herbal product in order to preserve its bioactivity and medicinal properties. This work evaluates the effects of concentration of Quercus infectoria galls ext...