کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5132413 1492048 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micro-emulsification/encapsulation of krill oil by complex coacervation with krill protein isolated using isoelectric solubilization/precipitation
ترجمه فارسی عنوان
میکرو-امولسیون / کپسوله کردن روغن کریل با استفاده از کوآکورس مجتمع شده با پروتئین کریل جدا شده با استفاده از حلال ایزوالکتریک / رسوب
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


- Commercially available krill oil was microencapsulated with krill protein isolate.
- Krill protein was isolated with isoelectric solubilization/precipitation.
- Krill oil microcapsules were high in phospholipids and EPA/DHA.

This study determined feasibility of krill protein isolated with isoelectric solubilization/precipitation (ISP) as wall material to microencapsulate krill oil by freeze-drying. Effects of krill oil/krill protein ratio on properties of microcapsules were investigated. With increased ratio, crude protein of microcapsules decreased, while total lipid increased. Although microcapsule oil loading capacity increased, loading and encapsulation efficiencies decreased. Thin layer chromatography (TLC) confirmed abundance of phospholipids, which are amphiphilic; and thus, resulted in stable emulsion (emulsion stability index). Microcapsules contained ω-3 polyunsaturated fatty acids (PUFAs) at 43-60, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) at 28-41 and 9-11 g/100g of total FAs, respectively. SDS-PAGE electrophoresis revealed proteolysis of ISP krill protein, probably causing reduced loading and encapsulation efficiencies. SEM showed that krill oil/krill protein ratio affected surface microstructure. ISP krill protein showed potential as a wall material to microencapsulate krill oil; and thus, expand application of krill oil/protein for human consumption.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 244, 1 April 2018, Pages 284-291
نویسندگان
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