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Updated: Jun 12, 2025

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A Tripeptide-Stabilized Nanoemulsion of Oleic Acid
Published on: February 27, 2019
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脂酶催化酸的合成及其作为多功能乳化剂的表征
Jihoon Kim1, Yoonseok Choi2,3, Hyunjong Yu4
1Department of Agricultural Biotechnology, Seoul National University, Gwanak-gu, Republic of Korea.
Journal of food science
|September 26, 2024
概括
一种新型的乳化剂 - - 酸 (EO) 用环保的酶制过程合成. 这种多功能成分表现出强大的抗氧化和抗菌特性,非常适合保存基于乳液的食品.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 基于乳液的食品容易发生氧化化和细菌腐烂,需要有效的保存策略.
- 具有多功能性质的新型乳化剂是为了提高食品安全和延长保质期而寻求的.
研究的目的:
- 通过脂酶催化化合成和表征一种新型乳化剂 - - 红烯酸 (EO),一种新型乳化剂.
- 评估合成的EO的抗氧化,抗菌和接口特性.
- 评估EO在稳定基于乳液的食品系统中的潜在应用.
主要方法:
- 脂酶催化了红酸和油酸的无溶剂化,以产生EO.
- 使用HPLC,ESI-MS,H NMR和C NMR进行EO的化学识别和量化.
- 对抗氧化活性 (DPPH,ABTS),抗菌活性 (MIC),界面张力,临界菌度,乳液滴滴大小,多分散性指数和泽塔潜力的测定.
主要成果:
- 被成功合成并确定为6-O-oleoyl-erythorbic acid,其产量为30.75±1.65毫米.
- 乙醇表现出相当大的抗氧化活性,与红甲酸相美,以及对*Bacillus cereus*和*Staphylococcus aureus*有强大的抗菌作用.
- 氧化表现出优异的界面特性,有效稳定油在水乳液,具有理想的液滴大小,低多分散性和负表面电荷.
结论:
- 酸是一种多功能乳化剂,具有有前途的抗氧化和抗菌活性.
- 无溶剂的酶合成提供了一个环保的生产方法.
- 具有在基于乳液的食品中应用的显著潜力,可以同时抑制脂质氧化和微生物生长,从而延长保质期和提高安全性.
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