The Effect of Roselle (Hibiscus sabdariffa) Extract on Malondialdehyde Level in Rat Liver

Abstract

Rosella (Hibiscus sabdariffa L.) is one of the ornamental plants including herbaceous plants are useful to prevent various diseases such as controlling blood pressure, blood circulation, and launched a bowel movement. Petals are bright red can be dried into dried rosella known by the public as red tea. The red color of rosella caused by the rosella contains anthocyanin pigments that can act as antioxidants. The research objective was to determine the effect of differences drying method on characteristics and antioxidant activity of dried rosella (red tea). Research methods include drying temperature at 50 ºC, 60 ºC, 70 ºC with a cabinet dryer, drying with sunlight for 1 day and 2 days, compared with dried rosella from the market. The parameters were observed including yield, moisture content, levels of anthocyanins, total phenols, total antioxidant, reducing power, free radical trapping capacity (DPPH). The data obtained were analyzed using analysis of variance (ANOVA) and further test DMRT (Duncant Multiple Range Test). The best results from these study was the drying method of rosella at the temperature of 50 ºC, the yield of dried rosella 99.22%, 9.42% moisture content, 7.91% anthocyanin content, 22.01% of total phenol, 99.05% total antioxidant, 0,0557% reducing power and free radical quencing capacity (DPPH) 83.94 ppm.