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Change in total phenolic content and antioxidant activity at different growth and development stages of Misai Kucing (Orthosiphon stamineus) plants
(Universiti Malaysia Perlis, 2010-05)
Many studies on herbal plants indicated that chemical content composition of these
plants may vary substantially at the different growth stages. In this research, the changes of
total phenolic content and antioxidant ...
The effects of drying temperature on total phenolic content (TPC) and Antioxidant Activities of Misai Kucing (Orthosiphon stamineus Benth) Plants
(Universiti Malaysia Perlis, 2010-06)
The modified spectrophotometric method makes use of the 2,2- diphenyl-1-
picrylhydrazyl (DPPH) radical and its specific absorbance properties. The absorbance
decreases when the radical is reduced by antioxidants. In ...