TY - JOUR
T1 - Sound Wave Exposure as a Strategy for Improving the Tubular Photobioreactor for Cultivating Synechococcus HS-9 as Biofuel Feedstock under Different Photoperiods
AU - Santoso, Yosua Adi
AU - Tambunan, Rubiantin Mesha Nauli
AU - Soekirno, Santoso
AU - Nasruddin, null
AU - Prihantini, Nining Betawati
N1 - Funding Information:
This study was funded by the Hibah Penelitian Dasar Unggulan Perguruan Tinggi (PDUPT) 2020 grant from the Ministry of Research and Technology/National Research and Innovation Agency (Kementerian Riset dan Teknologi/Badan Riset dan Inovasi Nasional) Indonesia to Dr. Nining Betawati Prihantini, M.Sc. grant no. NKB-2819/UN2.RST/HKP.05.00/2020.
Publisher Copyright:
© 2020, International Journal of Technology. All Rights Reserved
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - This study aimed to evaluate the effect of sound wave exposure in different photoperiods on Synechococcus HS-9 cell density and lipid content using tubular photobioreactors (PBRs). In this study, nine PBRs were used: three PBRs were exposed to a sine wave of 279.9 Hz for three hours during the day (A), three PBRs were exposed to a sine wave of 279.9 Hz for three hours during the night (B), and three PBRs remained unexposed to any sound wave to serve as a control (K). All PBRs were studied for 18 days. The results showed that the highest average cell densities of Synechococcus HS-9 in PBR A, B, and K respectively were 8.883×105 cells/mL, 7.242×105 cells/mL, and 6.175×105 cells/mL. The highest lipid percentage, which was 17%, was observed in PBR A; the percentage in PBR B was 16%, and in PBR K, 7%. However, Synechococcus HS-9 in PBR B showed a higher growth rate compared to PBR A and PBR K. Sound waves could have increased cell activity and metabolism which led to the increase in cell densities and lipid percentages in Synechococcus HS-9. The photoperiodic differences might have resulted in a lower photosynthetic rate and cell metabolism, but the sound wave could have helped promote the growth of Synechococcus HS-9 despite the lower photosynthetic rate.
AB - This study aimed to evaluate the effect of sound wave exposure in different photoperiods on Synechococcus HS-9 cell density and lipid content using tubular photobioreactors (PBRs). In this study, nine PBRs were used: three PBRs were exposed to a sine wave of 279.9 Hz for three hours during the day (A), three PBRs were exposed to a sine wave of 279.9 Hz for three hours during the night (B), and three PBRs remained unexposed to any sound wave to serve as a control (K). All PBRs were studied for 18 days. The results showed that the highest average cell densities of Synechococcus HS-9 in PBR A, B, and K respectively were 8.883×105 cells/mL, 7.242×105 cells/mL, and 6.175×105 cells/mL. The highest lipid percentage, which was 17%, was observed in PBR A; the percentage in PBR B was 16%, and in PBR K, 7%. However, Synechococcus HS-9 in PBR B showed a higher growth rate compared to PBR A and PBR K. Sound waves could have increased cell activity and metabolism which led to the increase in cell densities and lipid percentages in Synechococcus HS-9. The photoperiodic differences might have resulted in a lower photosynthetic rate and cell metabolism, but the sound wave could have helped promote the growth of Synechococcus HS-9 despite the lower photosynthetic rate.
KW - Audible sound
KW - Biomass
KW - Photobioreactor
KW - Photoperiodism
KW - Synechococcus
UR - http://www.scopus.com/inward/record.url?scp=85098583711&partnerID=8YFLogxK
U2 - 10.14716/ijtech.v11i7.4459
DO - 10.14716/ijtech.v11i7.4459
M3 - Article
AN - SCOPUS:85098583711
SN - 2086-9614
VL - 11
SP - 1406
EP - 1413
JO - International Journal of Technology
JF - International Journal of Technology
IS - 7
ER -