Comparison of Extraction Methods, Antioxidant Activities, Total Phenol in Seeds and Seed Shells of Kabau (Archidendron bubalinum (Jack) I.C. Nielsen) From Lampung and South Sumatra

Background: Kabau is one of the famous plants in Lampung and South Sumatra. Kabau is usually used as an ingredient to increase the aroma of cooking. Kabau is a plant belongs to the same genus with Archidendron pauciflorium (Benth.) IC. Nielsen and in the same family with Leucaena leucocephala L. Objective: The purpose of this research was to compare the total phenolic content and the antioxidant activity between seed and fruit carp (shell) of kabau grown in Lampung and South Sumatra. Method: Kabau seeds and the shells were obtained from Lampung and South Sumatra. Extractions were conducted by maceration and a continuous extraction using Soxhlet apparatus with ethanol as the solvent. Phenolic content and the antioxidant activity of the extract were then measured. Results: The antioxidant activity and high phenol levels were found in kabau shell extract obtained by maceration method with IC-50 value of seed shell from Lampung 17.61 μg/mL and 44, 7 μg / mL for those from South Sumatra. Phenol content of seed shell from Lampung 11.74 g GAE / 100 g and South Sumatra 5.88 g GAE / 100 g. Conclusion: Based on the research that has been done, it can be concluded that high antioxidant activity and high levels of total phenol were found in shell extract obtained by maceration of shell from Lampung and South Sumatra.