West Java is rich in essential oil-producing plants, essential oils known to be responsible for some pharmacological activities among its antioxidant and antimicrobial. This research aims to know antimicrobial, antioxidant activity and identify the components of a compound essential oil of nutmeg (Myristica fragrans Houtt.). Components chemistry identified with GC-MS (Gas Chromatography-Mass pectrometer). Antioxidant activity measured by using the DPPH method (2 2-diphenyl-1-picrylhydrazyl) at 516 λ wavelength absorbance. Antimicrobial activity determined Minimum Inhibitory Concentrations (MIC) and Minimum Bactericidal Concentrations (MBC) using microdilution method. The result of GC-MS showed the highest component on nutmeg containing 22.22% myristicin. The antioxidant test showed nutmeg had IC50 at 3,16%, essential oil showed antibacterial activity against Gram positive and Gram negative bacteria. Minimum inhibitory concentrations of essential oils range from 0.313% to 10%. The content of essential oils of nutmeg plants that grow in the area of West Java Garut can be used to overcome the problems of antioxidants and antimicrobial.Key words: Antioxidant, Antibacterial, Pala (Myristica fragrans Houtt), Chemical Composition.

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Kencur (Kaempferia galanga L.) is a family of Zingiberaceae. Several studies have shown that kencur can help reduce inflammation because kencur is known to contain anti-inflammatory compounds, namely marker compounds from flavonoids, kaempferol. For the development of pharmaceutical preparations, research on anti-inflammatory plasters containing 96% ethanol extract, n-hexane extract, ethyl acetate extract and 70% ethanol extract from ginger rhizome with the addition of penetration enhancer (enhancer), namely propylene glycol. This anti-inflammatory plaster was tested for its activity in 5 groups of Wistar strain rat feet which had been induced 1% carrageenan (negative control); positive control (diclofenac sodium), ethanol96% extract, n-hexane extract, ethyl acetate extract and 70% ethanol extract from kencur rhizome and compared with plaster of kencur rhizome ethanol extract without enhancer. The results showed the effect of adding enhancers 30 minutes after administration. 96% ethanol extract and ethyl acetate extract had reduced inflammation by 79.99% in rat test animals compared to plaster ethanol extract of rhizome kencur without the addition of enhancers. Keywords :  Kaempferia galanga. L., patch, anti-inflammatory, enhancer, propylene glycol

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Secondary metabolite compounds from Morus nigra (MN), has been shown to have antioxidant and antimicrobial activities. moreover, phenolics and flavonoids contained in this species are partly responsible for those activities. This study aims to evaluate the mode of action of MN stem bark extract and its antibacterial activity against Streptococcus mutans. The stem bark of MN was macerated using ethanol as a solvent for 72 h. Furthermore, the antibacterial activities of the extract were evaluated using Agar diffusion and microdilution methods, by determining the zone of inhibition and the minimum inhibitory concentration (MIC). Scanning electron microscopy (SEM) was used to observe the morphological changes induced by the extract. The protein and ion leakage from the bacterial cells were analyzed spectrophotometrically. The extract exhibited antibacterial activity against Streptococcus mutans, at a MIC value of 8mg/mL. Furthermore, it discovered via SEM that at 4xMIC, this extract could damage the membrane cell of Streptococcus mutans. Finally, protein and ion leakage were observed in bacterial cells of Streptococcus mutans induced with this extract. MN stem bark extract is a potential herbal medicine, which has antibacterial activity against Streptococcus mutans.