The purpose of this research was to investigate the effect of light intensity (30, 40, 50 and 100%) on growth, chemical composition, antioxidant capacity and nutritive value of Artemisia lactiflora. The experiment was performanced in Completely Randomized Design: (CRD) with three replications. The results showed that the treatment with light intensity at 40% was given a highest of plant height, length of branch, size of canopy, fresh and dry weight. Whereas, the tiller number was highest in the treatment with 100% of light intensity.
The composition of essential oil was analyzed by using GC-MS. The main composition detected were ?-farnesene, caryophyllene, santolina triene, ?-sesquiphellandrene and germacrene D. The treatment with light intensity at 50% was interned to give a highest of ?-farnesene, ?-sesquiphellandrene and germacrene D. Whereas, the treatment with 100% and 40% of light intensity were interned to give a highest of caryophyllene and santolina triene, respectively.
The total phenolic content was highest at 50% of light intensity and found to be 13.24 ? 0.64 mgGAE/ g DW. The DPPH and ABTS radical scavenging activities were highest at thetreatment with light intensity at 50% and 40%, respectively. The IC50 were to be
45.45 ? 1.88 and 38.00 ? 2.60 mg/mL, respectively.
The nutritive value of Artemisia lactiflora showed that crude fiber, carbohydrate and energy were highest in the treatment with 40% of light intensity. Moisture and fat were highest at the treatment with light intensity at 30%. Whereas, protein and ash were not different significant at light intensity.