Aktivitas Antioksidan Ekstrak Daun Jambu Biji (Psidium guajava L.)
AbstractAntioxidant has an important role in healing some kind of dieses caused by excessive oxidation reactions in human body. That leaf has benefit to resist diarrhea, anti inflammation, and anti mutagenic. It is assumed it could be used as antioxidant. The research was aimed to know the antioxidant activity of the extract of Psidium guajava leaf. The local leaf was from Bantar Kambing area in Bogor. The methods were thiocyanate method and thiobarbituric acid (TBA) method. The result showed that the leaf wich had the best antioxidant potential was the white local Psidium guajava leaf extracted by ethanol 70% in a maceration manner. In the tyochianate method, the extract of white Psidium guajava leaf had protective factor near to Vitamin E or tocopherol, that is 1.10 and tocoferol was 1.16. antioxidative evaluation using the TBA method showed that the highest activity was from ethanol extract of white Psidium guajava leaf could obstruct it up to 94.19% toward the control, however the actif constituents are unknown. Phytochemical evaluation result showed that the Psidium guajava leaf are contained tannin, phenol, flavonoid, quinon, and steroid.
This journal is published under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License. Authors who publish with this journal agree to the following terms: Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. NonCommercial — You may not use the material for commercial purposes.