Biomass Production of Subang Isolated Scenedesmus in Tube-shaped Photobioreactor with the Exposure of Audible Sound (Music): Photobioreactor Improvement Strategy

Abstract

The cultivation of Subang Isolated Scenedesmus in tube-shaped photobioreactors (PBRs) with the exposure of audible sound (music) was done. The study was done to know the effect of different music to the growth and culture appearance of Subang Isolated Scenedesmus. Subang Isolated Scenedesmus itself is Indonesia’s indigenous microalgae from Subang, West Java. This study was using three groups of Subang Isolated Scenedesmus PBRs. One group was control group and not exposed to any sound (Control-PBR), one group was exposed to music called “Blues for Elle” (PBR-A), and another group was exposed to music called “Bloom” (PBR-B). Based on 8 days of observation, it is known that Subang isolated Scenedesmus in PBR-A has the highest average cell density at the peak phase (1.81±0.16 x 105 cells/mL), highest growth rate (26.22 % per day), and most intense green color compared to Subang isolated Scenedesmus in PBR-B and Control-PBR. Related-Samples Friedman’s Two-Way ANOVA by Ranks test has proven that the average cell density value of Subang isolated Scenedesmus in Control-PBR, PBR-A, and PBR-B are not the same (α = 95%, sig = 0.013). Therefore, different audible sound (music) with certain intensity and frequency may affect the growth of Subang Isolated Scenedesmus differently