Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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The influence of the way of fat recovery from fleshing scrap on the acid value and fatty acid composition

플레싱 스크랩으로부터 유지 회수 방법이 산가 및 지방산 조성에 미치는 영향

  • 신수범 (한국신발 피혁연구소 피혁연구센터) ;
  • 민병욱 (한국신발 피혁연구소 피혁연구센터) ;
  • 양승훈 (한국신발 피혁연구소 피혁연구센터) ;
  • 박민석 (한국신발 피혁연구소 피혁연구센터) ;
  • 양영곤 (쓰리엠안전개발(주)) ;
  • 백두현 (충남대학교 섬유공학과) ;
  • 김해성 (명지대학교 화학공학과)
  • Published : 2007.12.31
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Abstract

Fleshing scrap is a kind of wastes produced during leather making process and used in the test of manufacturing biodiesel. The early step of manufacturing biodiesel is fat recovery from fleshing scrap. Hence, we investigated the influence of the way of fat recovery on the fatty acid composition. We used three different recovery ways, that is chemical method by protein decomposition with acid/fat recovering, physical method by protein denaturalization with heat and vacuum/fat pressing, and biodiesel method by protein decomposition/fat recovering. The biological method yielded the best results in terms of appearance transparency. It was most effective to lower acid value. Also the recovered fat by biological method would be favorable methyl-ester reaction raw material for biodiesel because it contains more than 5% of oleic acid among unsaturated fatty acid.

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References

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