Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effects of Seed Germination on Oil Oxidation and Tocopherol Stability of Perilla Oil

들깨의 발아가 들깨유의 산화 및 토코페롤 안정성에 미치는 영향

  • 황현숙 (인하대학교 식품영양학과) ;
  • 최은옥 (인하대학교 식품영양학과)
  • Received : 2010.12.06
  • Accepted : 2011.03.18
  • Published : 2011.06.30
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Abstract

Auto- and photo-oxidative stability of oil extracted from germinated perilla seeds during storage at $60^{\circ}C$ for 4 days was studied by determining peroxide and conjugated dienoic acid values. Tocopherol contents during oil oxidation were also monitored by high performance liquid chromatography. Perilla oil was oxidized and tocopherols were degraded during storage at $60^{\circ}C$ regardless of the presence of light. Light increased oil oxidation and tocopherol degradation. Seeds germinated for 12 h had increased tocopherol contents in the oil and improved the auto- and photo-oxidative stability of the perilla oil. Tocopherol played a more important role as an antioxidant in the presence of light than in the absence of light.

본 연구에서는 비발아들깨와 12, 36, 48시간 발아시킨 들깨로 부터 유지를 추출한 후 $60^{\circ}C$의 빛이 차단된 상태 또는 빛의 존재 하에 4일 동안 저장하면서 가속조건에서의 유지 산화 및 토코페롤 안정성을 평가하였다. 들깨유의 과산화물값과 공액이중산 값은 저장기간이 증가함에 따라 유의하게 증가하였으며, 비발아 들깨유에 비해 발아들깨유에서 낮은 경향을 보였다. 또한 빛이 차단된 조건에 비해 빛 존재 하에서 들깨유의 산화와 토코페롤 분해가 더 많이, 더 빨리 진행되었다. 들깨유 중 12시간 발아시킨 들깨로부터 추출한 들깨유는 유의하게 낮은 공액이중산값과 토코페롤의 낮은 분해속도 등에 기인하여 가장 높은 자동산화, 광산화 안정성을 보여주었다.

Keywords

References

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