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- W2892614944 abstract "Gum Arabic (GA) is the main product of acacia trees. As a raw and commercial samples, GA was extracted with methanol and analysed to measure the antioxidant activity using five methods: 2,2-diphenyl-1-picrylhydrazyl (DPPH), Folin-Ciocalteu indexes (FCI), which indicate total phenolic compounds (TPC), oxygen radical absorbance capacity (ORAC), ferric reducing antioxidant power (FRAP), and cupric reducing antioxidant capacity (CUPRAC). This study used antioxidant assays to detect TPC and selected appropriate and inexpensive methods to determine the antioxidant capacity of GA samples. The results reveal that the FCI, ORAC, and CUPRAC are correlated highly with FRAP. Person’s correlation coefficient (r) values are 0.98, 0.93, and 0.99, respectively, based on the sample size of(n=8). This means that the TPC of GA is highly correlated with their antioxidant activities that are measured by thesethree methods. Hence the FCI, ORAC, and the CUPRAC methods are more effective and simpler. They had similarpredictive power to the FRAP of GA antioxidant activity. Consequently, GA is generally recognized as being slightlyacidic which may have been obtained from appropriate methods of the antioxidant capacity detection. This acidity isdue to the electronic transfer mechanism based on the selection of the working pH." @default.
- W2892614944 created "2018-10-05" @default.
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- W2892614944 date "2018-01-01" @default.
- W2892614944 modified "2023-10-11" @default.
- W2892614944 title "Determination of antioxidant activity of gum arabic: An exudation from two different locations" @default.
- W2892614944 doi "https://doi.org/10.2306/scienceasia1513-1874.2018.44.179" @default.
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