脂肪酸乙烯产品的减少酸值使用复杂的酶
Yuting Li1, Jingjing Guo1, Shangde Sun1
1Lipid Technology and Engineering, Henan University of Technology, Zhengzhou, China.
Frontiers in bioengineering and biotechnology
|February 23, 2024
概括
这项研究开发了一种复杂的酶方法,以减少从Semen Abutili种子油中取出的脂肪酸乙烯 (FAEE) 生物柴油的酸值. 优化的工艺成功地产生了符合生物柴油标准的高产FAEE,除了氧化稳定性.
科学领域:
- 生物催化剂和绿色化学
- 可再生能源可再生能源来源
- 脂肪酸的化 脂肪酸的化
背景情况:
- 酶生物柴油生产面临的挑战是最终产品中的高酸值.
- 精液 Abutili 种子油 (SASO) 具有生物柴油的潜力,但需要减少酸值.
- 脂肪酸乙烯 (FAEE) 是一种重要的生物柴油成分.
研究的目的:
- 开发一种复杂的酶催化方法,用于SASO的乙醇化.
- 为了降低从SASO生产的FAEE的酸值,以满足特定要求 (AV ≤0.5 mgKOH/g).
- 为了优化反应条件以最大限度地提高FAEE产量并最大限度地降低酸值.
主要方法:
- 酶成分,去水剂,时间,温度,酶负荷和基质比率的研究影响.
- 使用复杂的酶系统,包括液体脂酶Eversa® Transform和干粉CALB.
- 在乙醇化过程中使用4A-MS作为去水剂.
主要成果:
- 在优化条件下,获得了90.8%±1.5%的FAEE产量,酸值降至0.39±0.10 mgKOH/g.
- 最佳条件包括特定的酶度,35°C,9:1的酒精油比,24小时的反应时间.
- 生产的FAEE的物理化学性能符合ASTM D6751标准,但不包括氧化稳定性.
结论:
- 一种复杂的酶方法有效地降低了SASO的FAEE的酸性价值.
- 优化的工艺产生了高质量的FAEE,适用于生物柴油应用,等待氧化稳定性改进.
- 需要进一步的研究来提高来自SASO的FAEE的氧化稳定性.
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