Journal of Fisheries and Marine Sciences Education (수산해양교육연구)

The Korean Society for Fisheries and Marine Sciences Education (한국수산해양교육학회)
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Quality Characterization of Salmon Oil Microencapsulated with Various Wall Materials

다양한 피복물질을 이용한 연어 오일의 미세캡슐화 및 품질 특성

  • Received : 2015.08.10
  • Accepted : 2015.09.19
  • Published : 2015.10.31
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Abstract

The aim of this study was to investigate the quality characterization of salmon oil microencapsulated with maltodextrin (MD), cyclodextrin (CD), sodium caseinate (SC), arabic gum (AG) and WPI. After spray drying to ambient temperature, the salmon oil powders were packed (single package) and placed at room temperature ($25^{\circ}C$) for 30 day. The quality characterization of salmon oil powder including total oil (%), extractable oil (%), encapsulation efficiency (%), fatty acid, SEM, pH, acid value (AV), peroxide value(POV) were investigated. Salmon oil was microencapsulated with a high power yield (> 80%); including the formulation MD/SC and MD/SC/WPI. The microencapsules of MD/SC/WPI presented spherical shapes, smooth texture and non-porous surfaces. The pH of MD/SC/WPI varied from 6.11 to 5.99 (p>0.05). The AV of MD/SC/WPI varied from 4.74 to 4.61 (p>0.05). The pH and AV were not significantly different. The POV of MD/SC/WPI increased with storage day (p<0.05). It was concluded that MD/SC/WPI could delay lipid oxidation and high yield (82.55%) of salmon oil powder.

본 연구에서는 연어 오일의 미세캡슐화를 위해 다양한 피복물질을 사용해 보았다. 피복물질의 종류가 미세캡슐화 수율에 큰 영향을 미쳤으며, 피복물질로 사용한 MD/SC/WPI 혼합 처리구에서 수율이 82.55%로 가장 우수한 성능을 보였다. SEM 분석 결과 입자의 분포가 균일하고 섬유 표면의 질감이 매끄럽게 나타났으며, 저장성 실험결과 pH, 산가, 과산화물가에서 안정한 수치를 나타내었기에 제품화 시 유통기한 30일까지는 실온저장에서 안전할 것으로 사료된다. 또한 MD/SC/WPI를 이용하여 분말화 한 연어 오일은 유화안정성이 높고, 제품의 취급이 쉽게 이용 될 수 있을 것이다. 이에 본 연구에서의 캡슐화 방법이 연어 오일과 유사한 특성을 지닌 물질의 캡슐화에 응용 될 수 있을 것이다.

Keywords

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