Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Nutritional Components and Physicochemical Properties of Lipids Extracted from Forest Resources

산림자원에서 추출한 유지자원의 영양성분 및 이화학적 특성 검토

  • Kim, Mi-So (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Park, Joon Hyung (Southern Forest Resources Research Center, National Institute of Forest Science) ;
  • Lim, Ho-Jeong (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Kim, Da-Som (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Kim, Hoe-Sung (Department of Food Science, Gyeongnam National University of Science and Technology) ;
  • Lee, Kyoung-Tae (Southern Forest Resources Research Center, National Institute of Forest Science) ;
  • Park, Yong Bae (Southern Forest Resources Research Center, National Institute of Forest Science) ;
  • Shin, Eui-Cheol (Department of Food Science, Gyeongnam National University of Science and Technology)
  • 김미소 (경남과학기술대학교 식품과학부) ;
  • 박준형 (국립산림과학원 남부산림자원연구소) ;
  • 임호정 (경남과학기술대학교 식품과학부) ;
  • 김다솜 (경남과학기술대학교 식품과학부) ;
  • 김회성 (경남과학기술대학교 식품과학부) ;
  • 이경태 (국립산림과학원 남부산림자원연구소) ;
  • 박용배 (국립산림과학원 남부산림자원연구소) ;
  • 신의철 (경남과학기술대학교 식품과학부)
  • Received : 2017.02.13
  • Accepted : 2017.03.09
  • Published : 2017.04.30
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Abstract

Nutritional constituents and physicochemical properties of lipids of forest resources were studied in order to examine their practical utilization in the lipid industry. In this study, Garae, Dongback, Mougwi, and Muwhanja were chosen as sources of fat-soluble components. Fatty acid profiles of forest resources showed more than 80% polyunsaturated fatty acids in total fatty acids. For total tocopherol contents, Garae showed higher content than others; moreover, Dongback was a good source of ${\alpha}$-tocopherol. Phytosterols of forest resources ranged from $55.96{\pm}2.23$ to $194.94{\pm}21.42mg$/100 g, and Muwhanja showed the highest phytosterol contents. Chemical properties such as acid value, peroxide value, and p-anisidine value showed good oxidative stability of lipids of forest resources. For physical properties, browning intensity and color parameters were studied. Induction times, as an indicator of oxidative stability, were measured and ranged from $0.70{\pm}0.01$ to $18.40{\pm}1.02h$ in four forest resources. Taken together, contents of lipid constituents and physicochemical properties can be used as an important preliminary database for utilization of lipids of forest resources.

본 연구에서는 산림자원에서 추출한 유지자원의 이용에 대한 잠재력을 확인하고자 지용성 영양성분에 대한 연구와 이를 토대로 한 이화학적 특성을 확인해 보았다. 영양성분의 경우 높은 불포화 지방의 비율(>80%)을 보였고, 지용성 비타민인 tocopherols과 식물성 스테롤인 phytosterol의 다양한 함량 분포를 확인하였다. 이화학적인 특성을 볼 때 1차 산화생성물인 산가와 과산화물가의 값은 안정적인 값이었으며, 2차 산화생성물의 지표인 p-anisidine value의 값을 확인하였다. 갈변도와 색도의 경우 유지 자체의 색도를 포함한 값으로 인해 신선도를 판정하기에는 무리가 있으나 색도에 대한 정보를 통해 적용 분야를 적용할 수 있는 근거로써 이용이 가능할 것으로 보인다. 산화안정성의 지표인 산소유도기간에서도 불포화지방산과 지용성 항산화제인 ${\alpha}$-T의 함량에 따른 다양한 결과를 보였다. 본 연구는 영양성분 및 이화학적인 결과를 산림유지 자원의 이용을 위한 기초자료로서 활용이 가능다고 판단된다.

Keywords

References

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