Alpha-linolenic acid-loaded oil/water microemulsion: Effects of phase behaviour simulation and environmental stress on phase stabilizing and anti-oxidation capacity

•Dynamic phase behaviour was simulated using dissipative particle dynamics.•Effect of environmental stresses on phase stability of microemulsion was investigated.•ALA-loaded microemulsion manifested good anti-oxidation stability in environmental stresses.•The feasibility of applying ALA-loaded micro...

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Bibliographic Details
Published in:Food chemistry 2018-08, Vol.256, p.311-318
Main Authors: Hou, Mengna, Liu, Tiankuo, Zhang, Bo, Chen, Boru, Li, Qing, Liu, Xiaoxue, Lu, Chao, Wang, Zhanzhong, Dang, Leping
Format: Article
Language:English
Subjects:
ALA-loaded microemulsion
alpha-Linolenic Acid - chemistry
Anti-oxidant stability
Dissipative particle dynamics (DPD)
Emulsions
Environment
Functional foods
Models, Theoretical
Oils - chemistry
Oxidation-Reduction
Pseudo-ternary phase diagram
Stress, Physiological
Water - chemistry
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Summary:•Dynamic phase behaviour was simulated using dissipative particle dynamics.•Effect of environmental stresses on phase stability of microemulsion was investigated.•ALA-loaded microemulsion manifested good anti-oxidation stability in environmental stresses.•The feasibility of applying ALA-loaded microemulsion into aqueous-based foods was confirmed. α-Linolenic acid (ALA)-loaded microemulsion (ME) was prepared from isoamyl acetate, polyoxyethylene ether 35 (EL-35), ethanol and water. The dynamic phase behaviour was simulated using dissipative particle dynamics (DPD), which showed that spherical ME was formed at water/oil ratios of 1:9 and 9:1, while a lamellar structure with distinctive water-course and oil layer appeared at ratios of 3:7, 5:5, and 7:3. Phase stabilizing and anti-oxidation effect of environmental stresses on ALA-loaded microemulsion were investigated. Results showed that the ME region was large and had good environmental tolerance. Subsequently, the investigation of anti-oxidation stability revealed that more than 60% ALA of ALA-loaded ME could be protected from oxidation under environmental stresses. Furthermore, ALA-loaded ME was applied in aqueous-based foods. The transparency, precipitate, stratification and phase separation were used to evaluate influence of ME on product properties, confirming great feasibility and stability of ALA-loaded ME for practical applications.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2018.02.100