부형제 조성비에 따른 오징어 간유의 미세캡슐화 특성
Effect of Microcapsule Wall Materials and Mixing Ratios on the Characteristics of Microcapsules Containing Squid Liver Oil
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초록
불포화지방산의 함량이 많은 오징어 간유의 미세캡슐화 공정을 최적화하기 위하여 부형제 조성을 달리하여 미세캡슐화 특성을 살펴본 결과, 모든 조성비에서 유화액의 점도는 유사한 경향을 나타내었고, Na-caseinate의 함량이 높을수록 유화안정성이 증가하였다. 미세캡슐화 효율은 Na- caseinate와 cyclodextrin의 비율이 4:6 > 6:4 > 5:5 > 3:7 > 7:3의 순으로 4:6 비율이 가장 높게 나타났으나 미세캡슐화된 분말의 흡습성은 cyclodextrin의 함량이 높을수록 증가하였으며, 수분함량과 입도크기는 모든 실험구가 유사하게 나타나 큰 영향이 없었다. 지방산 조성은 모든 조성비에서 고도불포화지방산이 50% 이상으로 나타났으며, Na-caseinate와 cyclodextrin의 혼합비가 4:6으로 제조된 분말의 포화지방산에 대한 고도불포화지방산의 비율이 2.11로 높게 나타났다.
Abstract
This study investigated the effects of microcapsule wall materials and mixing ratios on the characteristics of microcapsules containing squid liver oil. Emulsion stability was increased as Na-caseinate levels rose. Changes in mixing ratios of Na-caseinate and cyclodextrin caused microencapsulation efficiencies to rise, fall, and then rise again. The particle size and moisture content of microencapsulated powders were not affected by the mixing ratios of wall materials. As the cyclodextrin content rose, water uptake was increased. The polyunsaturated fatty acid composition was shown to be higher than 50% in all powders, and the ratio of polyunsaturated fatty acid composition to saturated fatty acid composition was 2.11 when the Na-caseinate and cyclodextrin mixing ratio was 4:6.
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