The experiment for antioxidant assay was conducted by using chemicals and reagents shown in Appendix 1 and Appendix 2. The procedures were dissimilar to the protocols used Islam et al. (2017) who also conducted an experiment to determine the antioxidant capacities of goji berries. The researchers conducted analysis in the three phases; the first one involved investigating the DPPH free radical scavenging capacity where a colorimetric method was applied (Islam et al. 2017). The absorbance rate was measured using UV-visible spectrophotometer and expressed as an equivalent of Trolox. In the second experiment, colorimetric method assisted in determining the ferric reducing antioxidant capacity and the absorbance rate measured using the same technique. Lastly, the same colorimetric method was applied in determining ABTS radical scavenging assay using UV-visible spectrophotometer at 734nm and expressed against Trolox. While these procedures were effective and comprehensive in determining the antioxidant scavenging assay, the methodology was unique and completely different from this project. Firstly, the use of colorimetric method was not incorporated here. Secondly, ABTS radical scavenging assay was not measured by the procedures of this project.