橄油的增强热弹性:脂肪酸动力学与多醇补充
Taha Mehany1, José M González-Sáiz1, Consuelo Pizarro1
1Department of Chemistry, University of La Rioja, 26006 Logroño, Spain.
Foods (Basel, Switzerland)
|June 26, 2025
概括
补充氧醇 (HTyr) 在深时增强了特级初橄油和其他食用油的氧化稳定性. HTyr 保存脂肪酸,特别是单不和脂肪酸,改善油的质量和营养价值.
科学领域:
- 食品科学与技术 食品科学与技术
- 营养生物化学 营养生物化学
- 农业化学 农业化学
背景情况:
- 油炸使食用油受到热应力,导致脂肪酸的降解和氧化稳定性的降低.
- 额外处女橄油 (EVOO) 具有固有的抗氧化特性,但在长时间的高温加工过程中可以进一步提高其稳定性.
- 橄油中主要的多醇氧 (HTyr) 以其抗氧化能力而闻名.
研究的目的:
- 调查氧醇 (HTyr) 补充剂在长时间的油炸过程中对各种食用油的脂肪酸概况和氧化稳定性的影响.
- 评估HTyr在热应力下保存单不和脂肪酸 (MUFA),多不和脂肪酸 (PUFA) 和和脂肪酸 (SFAs) 的有效性.
- 分析HTyr补充剂和深后脂肪酸成分和氧化抵抗的特定品种变化.
主要方法:
- 在多种EVOO品种和其他食用油中分析脂肪酸概况 (MUFAs,PUFAs,SFAs),在170-210°C下进行深3-6小时.
- 具有和没有氧醇 (HTyr) 补充剂的油的比较.
- 主要成分分析 (PCA) 的应用,以区分油类型,并根据脂肪酸成分识别特定品种标记.
主要成果:
- 补充HTyr显著保留单不和脂肪酸 (MUFA),特别是油酸,并减少了各种油类型的PUFA和SFAs的降解 (p <0.05).
- 特定的EVOO品种,如Manzanilla和Hojiblanca,表现出优越的氧化抵抗力,具有高的MUFA含量保留.
- PCA揭示了基于脂肪酸特征的油类型的独特聚类,某些品种与特定脂肪酸 (如酸) 具有独特的关联.
结论:
- 氧醇 (HTyr) 作为一种强大的天然抗氧化剂,在油炸过程中显著提高食用油的热稳定性和营养质量.
- 脂肪酸成分受到油品种,HTyr处理和油炸条件的显著影响,突出显示了油品质的复杂性.
- 丰富油为和工业应用提供了有前途的潜力,促进可持续实践和提高食品质量.
关键词:
化学测量方法 化学测量方法深度炸的方法额外处女橄油 橄油脂肪酸概况 脂肪酸概况气相色谱是一种气相色谱.氧铁醇补充剂的使用方法橄油质量 橄油质量主要组件分析的主要组件分析热稳定性的热稳定性植物油 植物油更多相关视频
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