TY - JOUR
T1 - Synergistic enhancement of glycogen production in Arthrospira platensis by optimization of light intensity and nitrate supply
AU - Aikawa, Shimpei
AU - Izumi, Yoshihiro
AU - Matsuda, Fumio
AU - Hasunuma, Tomohisa
AU - Chang, Jo Shu
AU - Kondo, Akihiko
N1 - Funding Information:
The authors thank Ms. Mami Matsuda for her technical assistance. This work was supported by Core Research for Evolutional Science and Technology (CREST) of Promoting Globalization on Strategic Basic Research Programs of the Japan Science and Technology Agency . The support by a top university project of NCKU (under Taiwan’s second-phase 5-year 50-billion grant) is also appreciated.
PY - 2012/3
Y1 - 2012/3
N2 - Arthrospira (Spirulina) platensis, a fast-growing halophilic cyanobacterium able to accumulate glycogen, was investigated for its feasibility to serve as feedstock for fermentative production of biofuels and chemicals. The culture conditions most appropriate for glycogen production were identified. Glycogen production was maximized by the depleting nitrate source under a high light intensity of 700μmol photons m -2s -1. With optimal control of both light intensity and nitrate supply, glycogen production of A. platensis reached nearly 1.03gL -1 (a glycogen productivity of 0.29gL -1d -1), which is, to the best of our knowledge, the highest α-polyglucan (glycogen or starch) production performance ever reported in microalgae. The outcome of this work supports A. platensis as a promising carbohydrate source for biorefinery.
AB - Arthrospira (Spirulina) platensis, a fast-growing halophilic cyanobacterium able to accumulate glycogen, was investigated for its feasibility to serve as feedstock for fermentative production of biofuels and chemicals. The culture conditions most appropriate for glycogen production were identified. Glycogen production was maximized by the depleting nitrate source under a high light intensity of 700μmol photons m -2s -1. With optimal control of both light intensity and nitrate supply, glycogen production of A. platensis reached nearly 1.03gL -1 (a glycogen productivity of 0.29gL -1d -1), which is, to the best of our knowledge, the highest α-polyglucan (glycogen or starch) production performance ever reported in microalgae. The outcome of this work supports A. platensis as a promising carbohydrate source for biorefinery.
UR - http://www.scopus.com/inward/record.url?scp=84857234262&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857234262&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2012.01.004
DO - 10.1016/j.biortech.2012.01.004
M3 - Article
C2 - 22277210
AN - SCOPUS:84857234262
SN - 0960-8524
VL - 108
SP - 211
EP - 215
JO - Bioresource technology
JF - Bioresource technology
ER -