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reparation of virgin coconut oil microcapsules by complex coacervation |
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KeyWord:coconut oil microcapsule complex coacervation |
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Abstract: |
With gelatin and arabic gum as wall materials, virgin coconut oil microcapsules were prepared by complex coacervation. With transglutaminase(TG) as cross-linking agent, and embedding rate as the main evaluation index, the preparation process of virgin coconut oil microcapsules were optimized by orthogonal experiment on the basis of single factor experiment. The effects of pH, mass concentration of wall material, ratio of core material to wall material and reaction temperature on the preparation of virgin coconut oil microcapsules were mainly investigated, and the basic properties of virgin coconut oil microcapsule products were analyzed. The results showed that the optimal preparation conditions of virgin coconut oil microcapsules were obtained as follows: pH 3.5, mass concentration of wall material 20 g/L, ratio of core material to wall material 2∶?1 and reaction temperature 40?℃. Under these conditions, the moisture content, surface oil content, embedding rate and average particle size of virgin coconut oil microcapsules were (2.88±0.31)%, (4.20±0.05)%, (93.75±0.28)% and 413 μm, respectively. |
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