Lutein production by Muriellopsis sp in an outdoor tubular photobioreactor
Lutein production by Muriellopsis sp in an outdoor tubular photobioreactor
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DOI：
10.1016/s0168-1656(00)00380-1
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发表时间：
2001-02-23
影响因子：
4.1
通讯作者：
Guerrero, MG
中科院分区：
文献类型：
--
作者：
Del Campo, JA;Rodríguez, H;Guerrero, MG
在室外管式光生物反应器中，研究了稀释率、混合和每日太阳周期对绿色单细胞拟海桑（Muriellopsis sp.）叶黄素和生物量生产率的影响。最高的生产力值，叶黄素（约180毫克米（-2）每天）和生物量（约40克（干重）米（-2）每天）在5月和7月实现。最佳稀释率的值各不相同，5月（0.06 h（-1））低于11月（0.09 h（-1））。全年记录的光合效率值（约4%）相似，表明每个实验期都实现了培养条件的优化。在沿着太阳活动周期中，Muriellopsis sp.的叶黄素含量在白天的早些时候迅速增加，中午时叶黄素含量达到最大值（约6 mg（g干重）（-1）），之后缓慢下降。在建立最大叶黄素/叶绿素比率后观察到细胞生长的增加，这可能表明叶黄素在保护细胞免受光损伤中的作用。(C)2001 Elsevier Science B.V. Al版权所有。
The effect of dilution rate, mixing and daily solar cycles on lutein and biomass productivity of the green unicellular alga Muriellopsis sp. has been studied, throughout the year, in an outdoor tubular photobioreactor. Highest productivity values, for both lutein (about 180 mg m(-2) per day) and biomass (about 40 g (dry weight) m(-2) per day) were achieved on May and July. Values for the optimal dilution rate varied, being lower in May (0.06 h(-1)) than in November (0.09 h(-1)). Similar values for photosynthetic efficiency (about 4%) were recorded throughout the year, indicating that optimization of culture conditions was achieved for each experimental period. Along the daily solar cycle, there was a fast increase of lutein content of Muriellopsis sp. in response to irradiance during the early hours of daytime, with maximal lutein content (about 6 mg (g dry weight)(-1)) being recorded at noon, and decreasing slowly, thereafter. An increase in cell growth was observed following the establishment of maximum lutein/chlorophyll ratio, which might indicate a role for lutein in protecting cells from photodamage. (C) 2001 Elsevier Science B.V. Al rights reserved.