期刊
FOOD CHEMISTRY
卷 279, 期 -, 页码 294-302出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.11.132
关键词
Astaxanthin; Supramolecular solvents; Extraction; Encapsulation; Nanostructured lipid carriers; Haematococcus pluvialis
资金
- Spanish MINECO [CTQ2017-83823-R, FPU13/03796]
- FEDER
The interest of food industry to merchandise natural astaxanthin is growing up. However, it confronts scientific and technological challenges mainly related to its poor water solubility and chemical instability. Here, we present a new quick and efficient green process to simultaneously extract, encapsulate and stabilize astaxanthin from Haematococcus pluvialis. The process is based on the hitherto unexplored combination of supramolecular solvents (SUPRAS), nanostructured liquids generated from amphiphiles through sequential self-assembly and coacervation, and nanostructured lipid carriers (NLCs). These novel nanosystems were characterized by means of dynamic light scattering, AFM and cryoSEM, revealing spherical particles of similar to 100 nm. Their antioxidant activity was measured by ORAC (20.6 +/- 3.9 mu M TE) and alpha-TEAC (2.92 +/- 0.58 mu M alpha-TE) assays and their in vitro capacity to inhibit ROS by DHE probe. Results showed that the SUPRAS-NLCs proposed yield high extraction and encapsulation efficiencies (71 +/- 4%) in combination with a remarkable time stability (180 d, 4 degrees C).
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