کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5768745 | 1628519 | 2017 | 10 صفحه PDF | دانلود رایگان |
- Phase inversion for emulsion with avocado phospholipids occurs between 60 and 70% of oil.
- Avocado phospholipids form stable emulsions with high concentration of small droplets.
- Emulsions with avocado phospholipids are pseudoplastic fluids and present gel behavior.
- Avocado phospholipids can be used as emulsifier in oil-in-water emulsions.
Avocado lipid fraction is rich in phospholipids; however these compounds are frequently discarded with the residual pulp during industrial oil extraction processes. In this study, emulsions were prepared using phospholipids from avocado pulp oil and characterized. First, emulsions were prepared with 1Â wt% phospholipids and between 20 and 70Â vol% oil phase. Then, emulsions with different phospholipid concentrations (1 and 2Â wt%) and pH levels (3 and 7) were prepared. Emulsions prepared with 1Â wt% phospholipids present phase inversion between 60 and 70Â vol% oil phase. The emulsions with 50 and 60Â vol% oil phase have higher stability against creaming than the others. Phospholipid concentration presented a higher influence on stability and droplet size distribution than pH. Emulsions with 2Â wt% phospholipids are pseudo-plastic fluids and present typical gel-like behavior. Therefore, the avocado phospholipids can be used as emulsifier to form stable oil-in-water emulsions.
Journal: LWT - Food Science and Technology - Volume 79, June 2017, Pages 42-51