Antioxidant and Antibacterial Activity of Local Ginger Rhizhome Extract from Panti Jember, East Java
DOI:
https://doi.org/10.62523/kalijaga.v3i1.57Keywords:
Ginger (Zingiber officinale), antioxidant, antibacterialAbstract
Ginger is a member of the Zingiberaceae family that has potential medicinal uses, such as antioxidants and antibacterial agents. The purpose of this study was to identify the antioxidant and antibacterial activities of ginger rhizome extract from Jember, East Java. The method used in the antioxidant test used a DPPH solution as a negative control and a UV-VIS spectrophotometer with a wavelength of 517 nm to measure the % inhibition or inhibition value against DPPH. The antibacterial test was conducted on S. aureus pathogen isolates, with ginger rhizome extract concentrations of 25%, 50%, 75%, and 100% and antibiotics as a positive control. The results of this study showed that the antioxidant activity obtained was 70.6% inhibition, which is classified as strong. The antibacterial test results at concentrations of 25% and 50% did not show antibacterial activity, while at a concentration of 75%, a clear zone of 13.2 mm was obtained, which is classified as strong, and at a concentration of 100%, a clear zone of 46.2 mm was obtained, which is classified as very strong. The antioxidant and antibacterial activities are due to the phytochemical compounds in ginger rhizomes, such as zingiberene, curcumene, shogaol, and gingerol.
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