TY - JOUR
T1 - Combining light strategies with recycled medium to enhance the economic feasibility of phycocyanin production with Spirulina platensis
AU - Ho, Shih Hsin
AU - Liao, Jing Fu
AU - Chen, Chun Yen
AU - Chang, Jo Shu
N1 - Publisher Copyright:
© 2017 Elsevier Ltd
PY - 2018
Y1 - 2018
N2 - C-phycocyanin (C-PC) produced from Spirulina platensis is of great commercial interest due to its healthcare properties. In this study, light sources and light-dark frequency were manipulated to enhance C-PC productivity of S. platensis. Using white LED resulted in higher C-PC production efficiency when compared to using fluorescent lamps and monochromatic LEDs. Proper adjustment of light-dark efficiency further increased C-PC production efficiency with relatively lower power consumption. In addition, using recycled medium in place of fresh medium proved to be an environmental-friendly and economic strategy for C-PC production with S. platensis. Optimal nitrate supplementation was also employed to improve the C-PC productivity. When grown under optimal culture conditions (i.e., light source, white LED; light-dark frequency, 30:30; recycled medium replacement, 50%; nitrate supplement, 45 mM), S. platensis could obtain the highest C-PC content (14.9%) and C-PC productivity (101.1 mg/L/d). This performance appears to be superior to that obtained from most related studies.
AB - C-phycocyanin (C-PC) produced from Spirulina platensis is of great commercial interest due to its healthcare properties. In this study, light sources and light-dark frequency were manipulated to enhance C-PC productivity of S. platensis. Using white LED resulted in higher C-PC production efficiency when compared to using fluorescent lamps and monochromatic LEDs. Proper adjustment of light-dark efficiency further increased C-PC production efficiency with relatively lower power consumption. In addition, using recycled medium in place of fresh medium proved to be an environmental-friendly and economic strategy for C-PC production with S. platensis. Optimal nitrate supplementation was also employed to improve the C-PC productivity. When grown under optimal culture conditions (i.e., light source, white LED; light-dark frequency, 30:30; recycled medium replacement, 50%; nitrate supplement, 45 mM), S. platensis could obtain the highest C-PC content (14.9%) and C-PC productivity (101.1 mg/L/d). This performance appears to be superior to that obtained from most related studies.
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U2 - 10.1016/j.biortech.2017.09.165
DO - 10.1016/j.biortech.2017.09.165
M3 - Article
C2 - 30060398
AN - SCOPUS:85030688740
SN - 0960-8524
VL - 247
SP - 669
EP - 675
JO - Bioresource technology
JF - Bioresource technology
ER -