Browsing by Author "Prof. Dr. Abdul Razak Shaari (Advisor)"
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Change in total phenolic content and antioxidant activity at different growth and development stages of Misai Kucing (Orthosiphon stamineus) plants
Mohd Raside, Shafad (Universiti Malaysia PerlisSchool of Bioprocess Engineering, 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 ... -
Content of phenolic compounds and antioxidant in different parts of misai Kucing (Orthosiphon stamineus) grown under different light intensity
Mohd Farhan, Abdul Razak (Universiti Malaysia PerlisSchool of Bioprocess Engineering, 2010-05)Content of phenolic compounds and antioxidant activity in different parts of misai kucing such as leaves, roots and stem has been observed when the misai kucing is treated in different light intensity. Total phenolic content ... -
The effects of drying temperature on total phenolic content (TPC) and Antioxidant Activities of Misai Kucing (Orthosiphon stamineus Benth) Plants
Siti Noor, Yusof (Universiti Malaysia PerlisSchool of Bioprocess Engineering, 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 ... -
Effects of drying temperatures and residual moisture content on marker compounds, total phenolics and antioxidant capacity of Orthosiphon stamineus benth (Misai Kucing) leaves
Nor Adila, Ramlee (Universiti Malaysia PerlisSchool of Bioprocess Engineering, 2011-05)Experiments were conducted to determine effect on total phenolic, biomarker compounds and antioxidant capacity. Different temperature treatment (40, 50 and 70°C) and drying stage for different moisture content (initial, ... -
Total phenolic content and antiodant activity of G.obscurum
Mohd Redzuan, Sutimin (Universiti Malaysia PerlisSchool of Bioprocess Engineering, 2011)The natural value of the leaves of the Tebengau ‘Glochidion obscurum’ was explored in this study. The leaf sample of these plant species was collected at Pusat Agrotech Sungai Chucuh. Other than that, this experiment ...