Scholarlink

<p>UV-C irradiation was evaluated as a strategy to enhance the dual-use potential of green microalgae <i>Desmodesmus quadricauda</i> and <i>Scenedesmus dimorphus</i> for functional food and biodiesel applications. Cultures were exposed to UV-C for 0–3&#xa0;h and cultivated for 14 days. Biomass production increased significantly, reaching maxima at 3&#xa0;h in <i>D. quadricauda</i> (1.63 ± 0.10&#xa0;g L<sup>−1</sup>) and at 1&#xa0;h in <i>S. dimorphus</i> (1.27 ± 0.05&#xa0;g L<sup>−1</sup>). UV-C irradiation markedly enhanced carotenoid content and increased protein levels by 1.2–1.3-fold, suggesting improved nutritional value. Lipid content and productivity peaked at 1&#xa0;h in both species, with 1.4–1.9-fold increases relative to controls. Fatty acid composition was modified under UV-C treatment, including increased oleic acid levels and the detection of docosahexaenoic acid (DHA), supporting potential functional food applications. Biodiesel properties, calculated from fatty acid methyl ester profiles, showed cetane numbers exceeding EN 14,214 minimum requirements, however, the cold-flow properties (CP and CFPP) of both species failed to meet the standard specifications. Overall, UV-C irradiation modulated biomass accumulation and metabolite composition, enhancing lipid productivity and altering fatty acid profiles, although further optimization is required to fully meet biodiesel fuel standards.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

UV-C irradiation enhances the dual-use potential of Desmodesmus quadricauda and Scenedesmus dimorphus for food and biodiesel production

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月19日

查看全文
  • Jiraporn Sirison,
  • Suneerat Ruangsomboon,
  • Pattanasak Chiwpreecha,
  • Buppha Jongput,
  • Duenrut Chonudomkul,
  • Kankanit Khwanpruk

摘要

UV-C irradiation was evaluated as a strategy to enhance the dual-use potential of green microalgae Desmodesmus quadricauda and Scenedesmus dimorphus for functional food and biodiesel applications. Cultures were exposed to UV-C for 0–3 h and cultivated for 14 days. Biomass production increased significantly, reaching maxima at 3 h in D. quadricauda (1.63 ± 0.10 g L−1) and at 1 h in S. dimorphus (1.27 ± 0.05 g L−1). UV-C irradiation markedly enhanced carotenoid content and increased protein levels by 1.2–1.3-fold, suggesting improved nutritional value. Lipid content and productivity peaked at 1 h in both species, with 1.4–1.9-fold increases relative to controls. Fatty acid composition was modified under UV-C treatment, including increased oleic acid levels and the detection of docosahexaenoic acid (DHA), supporting potential functional food applications. Biodiesel properties, calculated from fatty acid methyl ester profiles, showed cetane numbers exceeding EN 14,214 minimum requirements, however, the cold-flow properties (CP and CFPP) of both species failed to meet the standard specifications. Overall, UV-C irradiation modulated biomass accumulation and metabolite composition, enhancing lipid productivity and altering fatty acid profiles, although further optimization is required to fully meet biodiesel fuel standards.