Lucky Adiguna, 080151382227111. Optimization of Reducing Sugar Production through Acid Hydrolysis with Variations in HCl Concentration on Porphyridium cruentum Biomass from Independent Cultures (Supervisors : Dr. Riris Aryawati, S.T., M.Si and Dr. Muhammad Hendri, S.T., M.Si.) The increasing demand for renewable energy has encouraged the utilization of microalgae as a sustainable feedstock for …