کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7090158 | 1460103 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Production of water-soluble β-carotene micellar formulations by novel emulsion techniques
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Production of water-soluble β-carotene micellar formulations by novel emulsion techniques Production of water-soluble β-carotene micellar formulations by novel emulsion techniques](/preview/png/7090158.png)
چکیده انگلیسی
β-Carotene is one of the most common pigments in nature. β-Carotene can easily suffer degradation processes in presence of light, heat and oxygen. β-Carotene formulations provide protection of the active compound and overcome the low bioavailability due to the low solubility in aqueous media. Moreover, the use of β-carotene as natural colorant in beverages requires an appropriate formulation in order to stabilize the particles of β-carotene in a water suspension and to provide the desired color. This work presents a comparative study of the production water-soluble β-carotene formulations using OSA-starch as carrier material preparing the emulsions by different techniques: Ultrasound emulsification, high-shear emulsification and precipitation from a pressurized emulsion. Formulations of β-carotene with encapsulating efficiencies of 30% and a micellar particle size less than 200 nm were obtained by ultrasound emulsification. Different parameters were investigated as time of application of ultrasound, amplitude, duty cycle and organic-water ratio. By high-shear emulsification, lower encapsulation efficiencies were obtained (below 8%), with micellar particle sizes in a similar range as with ultrasound emulsification (less than 240 nm). And regarding the precipitation from a pressurized emulsion, the encapsulation efficiencies achieved were much higher (70-80%), but micellar particle sizes increased to 400 nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 74, December 2013, Pages 90-96
Journal: Chemical Engineering and Processing: Process Intensification - Volume 74, December 2013, Pages 90-96
نویسندگان
Esther de Paz, Ángel MartÃn, Elvira Mateos, MarÃa José Cocero,