Status : Verified
| Personal Name | Bautista, Karina Angela D. |
|---|---|
| Resource Title | Comparison of ABTS and DPPH assays in estimating the total antioxidant capacity of Turmeric (Curcuma longa L.) rhizome |
| Date Issued | 30 June 2017 |
| Abstract | Antioxidants are compounds that target free radicals to delay or inhibit oxidation. These are commonly associated with phenolic compounds that are mostly present in plants. Turmeric Curcuma longa L., an herb from the ginger family of Zingiberaceae, contains curcumin which is responsible for not only the color of the plant but also its antioxidative properties. To maximize the potential of turmeric as a functional food, this study estimated the total antioxidant capacity TAC of turmeric rhizome using free radical scavenging spectrophotometric assays such as ABTS and DPPH assays. Methanolic extraction was done to prepare the turmeric extracts and a total phenolic content TPC of 84.019 2.790 mg GAE100g was determined using FolinCiocalteu Method. The ABTS and DPPH assays were established to have acceptable accuracy 80120 Recovery and precision RSD 5 however, only the DPPH assay showed acceptable linearity r2 0.95. Limit of Detection LOD and Limit of Quantitation LOQ were also established at 55.01M and 183.37M, re |
| Degree Course | Bachelor of Science in Food Technology |
| Language | English |
| Keyword | Turmeric--Analysis |
| Material Type | Thesis/Dissertation |
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Category : P - Author wishes to publish the work personally.
Access Permission : Limited Access