Abstract :
Black Cumin (Nigella Sativa L.) contains thymoquinone and thymohydroquinone
which function as immunostimulants. Nanotechnology can improve drug quality by
increasing drug bioavailability, increasing physical stability, and increasing
absorption by reducing pasticle size and extending the surface. The purpose of this
study was to determine the characteristics of black cumin (Nigella Sativa L.)
nanoemulsion with various concentrations of surfactant Tween 80 and cosurfactant
PEG 400. The variation in the concentration of Tween 80 and PEG 400 in the black
cumin extract nanoemulsion preparation which had good physical properties was
formula 4 with a ratio of 4.5 and 1.5. The nanoemulsion was made from the oil
phases of virgin coconut oil, surfactant tween 80 and polyethylenglycol
cosurfactant. The nanoemulsion formulations were tested for organoleptic, pH,
viscosity,% transmittance, and droplet size. The result of nanoemulsion production
has the organoleptic form in bright brown color and has a distinctive odor. The
results of the physical quality and stability test of the black cumin extract
nanoemulsion preparation showed a difference in pH values, namely the higher the
PEG 400 concentration in the nanoemulsion formula, the lower the pH of the
preparation. In the droplet size test with the selection of the best formula with a
ratio of 4,5 : 1,5 of Tween 80 and PEG 400, the results obtained meet the droplet
size criteria range, namely the range of 20-500 nm with a polydispersity index of
1,2.