Scholarlink

<p>Coconut meal, a by-product of coconut milk production, is rich in medium-chain fatty acids (MCFAs), but remains underutilized. This study assessed supercritical carbon dioxide (CO<sub>2</sub>) extraction as a sustainable alternative to hexane extraction. Key parameters investigated were pressure (20−30&#xa0;MPa), temperature (60–80&#xa0;°C), CO<sub>2</sub> flow rate (5–15&#xa0;g/min), and particle size (&lt; 500–1400&#xa0;μm). The highest yield (24%) was achieved at 70&#xa0;°C, 25&#xa0;MPa, 10&#xa0;g/min, and particle size of 500–850&#xa0;μm, which was slightly lower than that obtained by hexane extraction. Oil extracted using larger particles via supercritical CO<sub>2</sub> extraction exhibited the highest MCFA content (79%). Both total phenolic content (TPC) and antioxidant activity (DPPH) increased with pressure, with the highest values of 35.5&#xa0;µg GAE/g oil and 125.2&#xa0;µg Trolox/g oil, respectively. These findings highlight supercritical CO<sub>2</sub> extraction as an environmentally friendly method to produce oil enriched in MCFAs and antioxidants from coconut meal.</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

Yield and quality optimization in supercritical CO2 extraction of oil from coconut meal

  • 期刊论文

  • 发表日期：

    2025年7月14日

查看全文
  • Thussanee Plangklang,
  • Pramote Khuwijitjaru,
  • Saeid Baroutian

摘要

Coconut meal, a by-product of coconut milk production, is rich in medium-chain fatty acids (MCFAs), but remains underutilized. This study assessed supercritical carbon dioxide (CO2) extraction as a sustainable alternative to hexane extraction. Key parameters investigated were pressure (20−30 MPa), temperature (60–80 °C), CO2 flow rate (5–15 g/min), and particle size (< 500–1400 μm). The highest yield (24%) was achieved at 70 °C, 25 MPa, 10 g/min, and particle size of 500–850 μm, which was slightly lower than that obtained by hexane extraction. Oil extracted using larger particles via supercritical CO2 extraction exhibited the highest MCFA content (79%). Both total phenolic content (TPC) and antioxidant activity (DPPH) increased with pressure, with the highest values of 35.5 µg GAE/g oil and 125.2 µg Trolox/g oil, respectively. These findings highlight supercritical CO2 extraction as an environmentally friendly method to produce oil enriched in MCFAs and antioxidants from coconut meal.