Skripsi
UJI AKTIVITAS ANTIOKSIDAN PADA PERMEN JELI KOPI ARABIKA SEMENDO
Background: Free radicals are reactive compounds that can cause oxidative stress and are related to diseases in the oral cavity, such as periodontitis. Semendo arabica coffee is rich of tannins, flavonoids, and polyphenol compounds that can neutralize free radicals. Semendo arabica coffee extract was reported to have antioxidant activity, therefore in this study it was developed into a jelly candy. Aim: This study aimed to evaluate the antioxidant activity of Semendo arabica coffee jelly candy. Method: This study was an in vitro experimental laboratory design. The sample groups for this study were Semendo arabica coffee jelly candy and jelly candy without Semendo arabica coffee. The antioxidant activity was tested using the DPPH method with a spectrophotometer UV-Vis at a wavelength of 517 nm. The inhibition percentage value was calculated based on the difference in absorbance between the sample and the control. Data were analyzed by parametric independent T-test. Result: Semendo arabica coffee jelly showed that the average inhibition percentage value of 80,176% compared to jelly candy without Semendo arabica coffee of 26,191%, with a significant difference (p