期刊
FOOD CHEMISTRY
卷 204, 期 -, 页码 326-333出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.02.143
关键词
Microencapsulation; Nigella sativa oleoresin; Powder; Spray drying; Nutraceutical applications
资金
- Polish Academy of Science
- Egyptian Academy of Scientific Research Technology
Oleoresin of Nigella sativa L. (Black cumin) was obtained from the seeds using hexane extraction at room temperature. The oleoresin was emulsified in an aqueous solution containing gum Arabic/maltodextrin (1:1 w/w) and then encapsulated in powder form by spray drying. The characteristics of the obtained powder including moisture content, bulk density, wettability, morphology, encapsulation efficiency were evaluated. The effect of the spray drying on the chemical composition of the volatile oil fraction of N. sativa oleoresin was also evaluated using gas chromatographic-mass spectroscopic analysis. Results indicated that the encapsulation efficiency of the whole oleoresin in the powder can range from 84.2 +/- 1.5% to 96.2 +/- 0.2% depending on the conditions of extracting the surface oil from the powder. On the other hand the encapsulation efficiency of the volatile oil fraction was 86.2% +/- 4.7. The formulated N. sativa L. oleoresin powder can be used in the fortification of processed food and nutraceuticals. (C) 2016 Elsevier Ltd. All rights reserved.
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