Radin Maya Saphira Radin Mohamed, Najeeha Apandi, Muhammad Safwan Miswan, Paran Gani, Adel Ali Saeed Al-Gheethi, Amir Hashim Mohd. Kassim and Nurina Fitriani
Abstract
The effect of growth rate and biomass productivity for microalgae Scenedesmus sp. grown in Boltââ¬â¢s Basal Medium (BBM) under the influence of pH (6.5, 7.0, 7.5, 8.0, 8.5, and 9.0) and light intensity (36, 100, 180, 245, and 326 ümol m-2s-1) was analyzed in batch culture. The highest specific growth rate of Scenedesmus sp. was 0.86 day-1 and biomass productivity was 40.5Ãâ104 cell/mL/day, when the medium was maintained at a constant pH value of 7.5. Similarly, Scenedesmus sp. also achieved higher growth rate (0.79 day-1) and biomass productivity (38.44Ãâ104 cell/mL/day) at pH 8.0. The great effect in photoperiod in terms of growth was at 18:6 hours with a maximum specific growth of 0.75 day-1 and highest biomass productivity of 73.9Ãâ104 cell/mL/day. The significant in different pH and photoperiod on the growth and biom.