Synergistic enhancement of glycogen production in Arthrospira platensis by optimization of light intensity and nitrate supply
Synergistic enhancement of glycogen production in Arthrospira platensis by optimization of light intensity and nitrate supply
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DOI：
10.1016/j.biortech.2012.01.004
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发表时间：
2012-03-01
影响因子：
11.4
通讯作者：
Kondo, Akihiko
中科院分区：
文献类型：
--
作者：
Aikawa, Shimpei;Izumi, Yoshihiro;Kondo, Akihiko
研究了钝顶节旋藻作为发酵生产生物燃料和化学品原料的可行性。确定了最适合糖原生产的培养条件。在700 μ mol photons m（-2）s（-1）的高光强下，通过消耗硝酸盐源使糖原产量最大化。在优化控制光照强度和硝酸盐供应的条件下，A.钝顶螺旋藻达到接近1.03 g L-1（糖原生产率为0.29 g L-1 d（-1）），据我们所知，这是微藻中报道的最高的α-聚葡聚糖（糖原或淀粉）生产性能。这项工作的结果支持了A. Platensis作为生物精炼的有前途的碳水化合物来源。(C)2012爱思唯尔有限公司保留所有权利。
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 700 mu mol photons m(-2) s(-1). With optimal control of both light intensity and nitrate supply, glycogen production of A. platensis reached nearly 1.03 g L-1 (a glycogen productivity of 0.29 g L-1 d(-1)), which is, to the best of our knowledge, the highest alpha-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. (C) 2012 Elsevier Ltd. All rights reserved.