Characterization of the Lipid Components in <i>Desmodesmus</i>and <i>Scenedesmus</i>Strains: Lipid Content, Lipid Classes and Fatty Acid Profile

• 作者: Carolina Vieira Viegas Gisel Chenard Díaz Leonardo Brantes Bacellar Mendes Yordanka Reyes Cruz
• 来源期刊: 美国植物学期刊(英文)
• 学科: 数学
• 关键词: MICROALGAE Desmodesmus sp. Scenedesmus sp.
• 年，卷（期）: mgzwxqkyw_2020,（12）
• 页码范围: 2103-2121
• 页数: 19页
• 分类号: O17

摘要

The lipid composition in terms of the amount of neutral lipids, free fatty acids and polar lipid content is of great importance to make full use possible of this fraction and to define the suitability of its application, either as a raw material for fuel production, nutraceutical purposes or feed. In addition to the fatty components present in the lipid extract, other components may be included, such as: carotenoids, pigments and sterols. The microalgae studied in this work, <i><span style="font-family:Verdana;">Scenedesmus</span></i><span style="font-family:Verdana;"> sp. and </span><i><span style="font-family:Verdana;">Desmodesmus</span></i><span style="font-family:Verdana;"> sp., were subjected to the same growth conditions and evaluated for lipid content, quantification and diversity of lipid components as well as its fatty acid profile. For lipid determination two extraction methods were compared: the </span><i><span style="font-family:Verdana;">J</span></i><span style="font-family:Verdana;">:</span><i><span style="font-family:;" "=""> </span></i><i><span style="font-family:Verdana;">Schmid-Bondzynski-Ratzlaff</span></i><span style="font-family:;" "=""><span style="font-family:Verdana;"> and </span><i><span style="font-family:Verdana;">Bligh</span></i><span style="font-family:Verdana;"> & </span><i><span style="font-family:Verdana;">Dyer</span></i><span style="font-family:Verdana;"> method. For </span><i><span style="font-family:Verdana;">Desmodesmus</span></i><span style="font-family:Verdana;"> sp. 5.43% ± 0.41% and 9.18% ± 0.33% of lipids were obtained on an ash-free dry weight basis and for </span><i><span style="font-family:Verdana;">Scenedesmus</span></i><span style="font-family:Verdana;"> sp. 12.46% ± 0.38% and 8.16% ± 0.42% of lipids were obtained on an ash-free dry weight basis using for both methods </span><i><span style="font-family:Verdana;">J</span></i><span style="font-family:Verdana;">:</span></span><i><span style="font-family:;" "=""> </span></i><i><span style="font-family:Verdana;">Schmi