Utilization Of Rice Waste Water on Biomass and Carotenoid Pigment Arthrospira platensis

Arthrospira platensis culture requires macro and micronutrients. The nutrients needed by according to Agustina Herman (2021) are macronutrients consisting of nitrogen (N), phosphorus (P), potassium (K), sulfur (S), iron (Fe), magnesium (Mg), silicon (Si), calcium (Ca). Micronutrients consist zinc (Zn), cobalt (Co), molybdenum (Mo), boron (B), copper (Cu). Rice-washing wastewater contains micronutrients for the growth platensis. Almost all found in wastewater, except Co. Previous studies have shown that rice-washing can be used culture, but rate is still higher than Walne fertilizer 0.5 ml/L. Zarrouk as a standard medium shows this has better results Urea NPK fertilizers. This research was conducted determine effect nutrient source media or combination so it increase biomass carotenoid pigments Factorial Completely Randomized Design (CRD) with 12 treatments 3 replications. quality test carried out testing dry content. ANOVA showed study's treatment had significant on content highest carotenoids obtained 1.5 ml/L