The kinetics of the swelling process and the release mechanisms of Coriandrum sativum L. essential oil from chitosan/alginate/inulin microcapsules

被引：214

作者：

Dima, Cristian ^{[1
]}

Patrascu, Livia ^{[1
]}

Cantaragiu, Alina ^{[2
]}

Alexe, Petru ^{[1
]}

Dima, Stefan ^{[2
]}

机构：

[1] Univ Dunarea de Jos Galati, Fac Food Sci & Engn, RO-800201 Galati, Romania

[2] Univ Dunarea de Jos Galati, Fac Sci & Environm, RO-800201 Galati, Romania

来源：

FOOD CHEMISTRY | 2016年 / 195卷

关键词：

Microcapsules; Coriander essential oil; Spray drying; Kinetic swelling; Release mechanism; DRUG-RELEASE; CHITOSAN; ENCAPSULATION; MICROENCAPSULATION; ALGINATE; DELIVERY; OREGANO; MICROPARTICLES; STABILITY;

D O I：

10.1016/j.foodchem.2015.05.044

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The encapsulation by spray drying method of coriander essential oil (CEO) in various materials (chitosan, alginate, chitosan/alginate, chitosan/inulin) was studied. The viscoelastic properties of the oil-in-water (O/W) emulsions and the characteristics of CEO-loaded microcapsules like morphology, moisture, wettability, solubility, flowability properties, swelling and release mechanisms were investigated. The chitosan microcapsules had a brain-like structure while the alginate and chitosan/alginate microcapsules are spherical with a smooth surface. The Compressibility Index (Cl = 29.09-32.25%) and Hausner Ratio (HR = 1.38-1.44) values showed that all the microcapsules prepared correspond to the "poor" flowability powders group. The chitosan microcapsules exhibited the maximum release rate at pH 2.5 while the alginate microcapsules exhibited the maximum release rate at pH 6.5. Kinetics and mechanism of CEO release were studied using various mathematical models such as, zero order, first order, Higuchi model and Peppas model. The diffusional exponent (n) values of Peppas equation explains a non Fickian transport mechanism and diffusion or diffusion-swelling controlled process. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：39 / 48

页数：10

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