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首页> 外文期刊>Energy Conversion & Management >Effect of media composition and light supply on biomass, lipid content and FAME profile for quality biofuel production from Scenedesmus abundans
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Effect of media composition and light supply on biomass, lipid content and FAME profile for quality biofuel production from Scenedesmus abundans

机译：培养基组成和光源供应对丰富景物生物燃料生产中生物质，脂质含量和FAME分布的影响

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摘要

Microalgae have a potential to serve as a renewable feedstock for synthesis of biodiesel, rich in saturated and unsaturated fatty acids and valuable biomolecules. Role of several parameters such as nutrient composition, light intensity, photoperiod and pH on growth and lipid productivity was investigated. A freshwater green microalga Scenedesmus abundans was selected as a potential candidate for production of biodiesel and its growth conditions were optimized for enhanced lipid accumulation. The lipid content of the strain has been increased up to about 48% when grown in modified Fogg's medium at pH 8 with light intensity of 40.5 mu mol m(-2) s(-1) and photoperiod of 16 h light:8 h dark. Lipids were transesterified and the fatty acid methyl esters (FAME) thus obtained were analyzed by GC-MS. They possess more than 80% of C-16 to C-13 fatty acids, which are major precursors for biodiesel production. The FAME consisted of saturated (47.83%), monounsaturated (26.38%) and polyunsaturated (25.20%) fatty acids. Several important biodiesel quality parameters were predicted and compared to the corresponding specifications in the American and European biodiesel standards. The study opens up new vistas for utilization of the micro alga, S. abundans for efficient production of biodiesel. (C) 2016 Elsevier Ltd. All rights reserved.
机译：微藻有潜力用作合成生物柴油的可再生原料，富含饱和和不饱和脂肪酸以及有价值的生物分子。研究了诸如养分组成，光强度，光周期和pH等几个参数对生长和脂质生产力的作用。选择淡水绿色微藻场景藻作为生物柴油生产的潜在候选者，并对其生长条件进行了优化，以增强脂质的积累。当在改良的Fogg's培养基中于pH 8，光强度为40.5μmol m（-2）s（-1），光照时间为16 h光照：8 h黑暗时，该菌株的脂质含量已增加至约48％ 。脂质被酯交换并通过GC-MS分析由此获得的脂肪酸甲酯（FAME）。它们拥有超过80％的C-16至C-13脂肪酸，这是生物柴油生产的主要前体。 FAME由饱和脂肪酸（47.83％），单不饱和脂肪酸（26.38％）和多不饱和脂肪酸（25.20％）组成。预测了几个重要的生物柴油质量参数，并将其与美国和欧洲生物柴油标准中的相应规范进行了比较。这项研究开辟了新的前景，可以利用微藻，丰产链球菌有效生产生物柴油。 （C）2016 Elsevier Ltd.保留所有权利。

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  • 来源
    《Energy Conversion & Management》 |2017年第6期|85-92|共8页
  • 作者

    Rai Monika Prakash; Gupta Shivani;

  • 作者单位

    Amity Univ, Amity Inst Biotechnol, Sect 125, Noida Gautam Budh Nagar 201313, UP, India;

    Amity Univ, Amity Inst Biotechnol, Sect 125, Noida Gautam Budh Nagar 201313, UP, India|Int Ctr Genet Engn & Biotechnol, Bioenergy Ctr, Aruna Asaf Ali Marg, New Delhi, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Microalgae; S. abundans; Light intensity; Photoperiod; Lipid; Biofuel;

    机译：微藻;S。丰度;光强度;光周期;脂质;生物燃料;

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