Korean Journal of Plant Resources (한국자원식물학회지)

The Plant Resources Society of Korea (한국자원식물학회)
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Analysis of Fatty Acid Compositions and Biodiesel Properties of Seeds of Woody Oil Plants in Korea

국내 목본 유지식물 종자의 지방산 조성 및 바이오디젤 특성 분석

  • Kim, Kwang Soo (Bioenergy Crop Research Center, National Institute of Crop Science, RDA) ;
  • Lee, Yong Hwa (Bioenergy Crop Research Center, National Institute of Crop Science, RDA) ;
  • Jang, Young Seok (Bioenergy Crop Research Center, National Institute of Crop Science, RDA) ;
  • Choi, In Hu (Bioenergy Crop Research Center, National Institute of Crop Science, RDA)
  • 김광수 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 이영화 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 장영석 (농촌진흥청 국립식량과학원 바이오에너지작물센터) ;
  • 최인후 (농촌진흥청 국립식량과학원 바이오에너지작물센터)
  • Received : 2013.08.02
  • Accepted : 2013.10.22
  • Published : 2013.10.31
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Abstract

In order to evaluate their potential as sources of biodiesel, oil content and fatty acid composition of seeds and fatty acid methyl ester (FAME) properties from seven woody oil plants in Korea were analysed. The oil content of seed of all woody plant species ranged from 15.1 (Ligustrum lucidum) to 70.3% (Camellia japonica) by dry weight. Fatty acid composition consisted mainly of oleic acid, linoleic acid, linolenic acid, palmitic acid and stearic acid, with oleic acid being the most abundant. The content of unsaturated fatty acids of all species was higher than saturated fatty acids. Oxidation stability of seed oils of all woody plants ranged from 2.25 to 8.62 hours/$110^{\circ}C$. Fatty acid methyl ester of Styrax japonica has been found to have the highest iodine value, indicating that unsaturated fatty acid content is higher than other seed oils. Cold filter plug point(CFPP) was varied over a wide range from $0^{\circ}C$ to $-13^{\circ}C$. The cold fluidity of FAME of Chionanthus retusa were excellent.

국내에 자생하는 기름생산이 가능한 목본식물의 바이오디젤 원료로서의 이용가능성을 구명하기 위해 기름함량, 지방산 조성 및 전이에스테르화를 통해 생산된 바이오디젤의 특성분석을 실시하였다. 목본 기름식물의 종자 내 기름함량은 15.1 ~ 70.3%로 다양하였으며, 지방산조성은 주로 올레산, 리놀레산, 리놀렌산, 팔미트산 및 스테아르산 등 이였으며 올레산의 함량이 가장 높았고 모든 식물에서 불포화지방산이 포화지방산보다 많았다. 지방산메틸에스테르의 산화안정성은 2.25 ~ 8.62 hours/$110^{\circ}C$로 나타났고, 요오드가는 때죽나무 기름이 가장 높았으며 이는 불포화지방산의 함량이 다른 식물 종보다 높기 때문이다. 저온 필터막힘점은 $0^{\circ}C$ to $-13^{\circ}C$로 다양하게 나타났으며 이팝나무 지방산메틸에스테르가 저온유동성이 가장 우수하였다. 기름함량, 지방산조성, 바이오디젤 특성 등을 종합하였을 때 동백나무, 이팝나무 및 때죽나무의 종자에서 추출한 기름이 바이오디젤로의 이용 가능성이 비교적 높은 것으로 생각된다.

Keywords

References

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