Production of biomass and nutraceutical compounds by Spirulina platensis under different temperature and nitrogen regimes
Production of biomass and nutraceutical compounds by Spirulina platensis under different temperature and nitrogen regimes
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DOI：
10.1016/j.biortech.2005.09.030
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发表时间：
2007-05-01
影响因子：
11.4
通讯作者：
Vieira Costa, Jorge Alberto
中科院分区：
文献类型：
--
作者：
Colla, Luciane Maria;Reinehr, Christian Oliveira;Vieira Costa, Jorge Alberto
蓝藻螺旋藻因其营养和可能的药用作用而被人类使用。我们的研究评估了温度和培养基中氮浓度对蓝藻生物量的影响，以及生物量中蛋白质、脂质和酚类化合物的组成。我们发现，在35℃时，对生物量产生负面影响，但对蛋白质、脂质和酚类物质的产生有积极影响，这些化合物的最高水平是在含有1.875或2.500 gl（-1）硝酸钠的Zarrouk培养基中获得的。与35℃相比，30℃条件下获得了更高的生物量密度和生产力，但氮浓度似乎对蛋白质、脂质或酚类物质的数量没有影响，这表明在30℃条件下，Zarrouk培养基中硝酸钠的浓度（2.50 g l(-1)）可以降低而不损失生产力，这是大规模栽培中重要的成本节约因素。(c) 2005 Elsevier Ltd版权所有。
The cyanobacterium Spirulina platensis has been used by humans because of its nutritional and possibly medicinal effects. Our study evaluated the influence of temperature and nitrogen concentration in the medium on the production of biomass by this cyanobacterium and the biomass composition in protein, lipid and phenolic compounds. We found that at 35 degrees C there was a negative effect on biomass production but a positive effect on the production of protein, lipids and phenolics, the highest levels of these compounds being obtained in Zarrouk's medium containing 1.875 or 2.500 gl(-1) sodium nitrate. Higher biomass densities and productivity were obtained at 30 degrees C than at 35 degrees C, but nitrogen concentration appeared to have no effect on the amount of protein, lipid or phenolics, indicating that at 30 degrees C the concentration of sodium nitrate in Zarrouk's medium (2.50 g l(-1)) can be reduced without loss of productivity, an important cost-saving factor in large-scale cultivation. (c) 2005 Elsevier Ltd. All rights reserved.