EFFECT OF PH AND LIGHT INTENSITY ON THE GROWTH AND BIOMASS PRODUCTIVITY OF MICROALGAE SCENEDESMUS SP.Radin Maya Saphira Radin Mohamed, Najeeha Apandi, Muhammad Safwan Miswan, Paran Gani, Adel Ali Saeed Al-Gheethi, Amir Hashim Mohd. Kassim and Nurina Fitriani
The effect of growth rate and biomass productivity for microalgae Scenedesmus sp. grown in Boltâs 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 Î¼mol 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 40.5Ã104 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 (38.44Ã104 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 73.9Ã104 cell/mL/day. The significant in different pH and photoperiod on the growth and biom.
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