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Now showing items 11-18 of 18
Development of disposable superoxide dismutase biosensor to determined the antioxidant capacity in tea plant
(Universiti Malaysia Perlis, 2011-05)
A disposable enzymatic biosensor has been developed using superoxide dismutase (SOD) enzyme as its sensing material for the determination of antioxidant capacity of tea samples. The SOD was physically immobilized in a gel ...
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 ...
Effects of drying temperatures and residual moisture content on marker compounds, total phenolics and antioxidant capacity of Orthosiphon stamineus benth (Misai Kucing) leaves
(Universiti Malaysia Perlis, 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, ...
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 ...
Content of phenolic compounds and antioxidant in different parts of misai Kucing (Orthosiphon stamineus) grown under different light intensity
(Universiti Malaysia Perlis, 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 ...
Determination of antioxidant compounds from the seeds of Pangium edule by solid liquid extraction method
(Universiti Malaysia Perlis, 2010-05)
The market demand of the tocopherols in the antioxidant product was relatively
high as tocopherols were proved to be the most powerful antioxidant compared others.
However, the global supply of tocopherols from the natural ...
Analysis of the synergistic effect for Bioactive compound of Orthosiphon Stamineus and Eugenia Polyantha
(Universiti Malaysia Perlis (UniMAP), 2016-06)
The combination of herbs has drawn much attention of people worldwide, not only because of their economic value as food products, but also for their antioxidant compounds. Orthosiphon stamineus and Eugenia polyantha are ...
Effect of drying methods towards antioxidant properties of Pandanus amaryllifolius tea
(Universiti Malaysia Perlis (UniMAP), 2016-06)
Drying is the common way to preserve the quality of aromatic and bioactive compounds in medicinal plants. The goal of this study was to determine the antioxidant activity, phenolic content, chlorophyll content and phytochemical ...