Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Identification of Characteristic Aroma-active Compounds from Burnt Beef Reaction Flavor Manufactured by Extrusion

압출성형에 의해 제조된 구운 쇠고기 반응향의 특징적인 향기성분 동정

  • Kim, Ki-Won (Department of Food Engineering, Dankook University) ;
  • Seo, Won-Ho (Department of Food Engineering, Dankook University) ;
  • Baek, Hyung-Hee (Department of Food Engineering, Dankook University)
  • 김기원 (단국대학교 식품공학과) ;
  • 서원호 (단국대학교 식품공학과) ;
  • 백형희 (단국대학교 식품공학과)
  • Published : 2006.10.01
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Abstract

To characterize aroma properties of burnt beef reaction flavor manufactured by extrusion, volatile flavor compounds and aroma-active compounds were analyzed by simultaneous steam distillation and solvent extraction (SDE)-gas chromatography-mass spectrometry-olfactometry (GC-MS-O). Hydrolyzed vegetable protein (HVP) was successfully extruded with precursors (glucose, cystine, furaneol, thiamin, methionine, garlic powder, and lecithin) at $160^{\circ}C$, screw speed of 45 rpm, and feed rate of 38 kg/hr. Sixty eight volatile flavor compounds were found in burnt beef reaction flavor. The number of volatile flavor compounds decreased significantly when HVP was extruded either with furaneol-free precursors or without precursors. Twenty seven aroma-active compounds were detected in burnt beef reaction flavor. Of these, methional and 2-methyl-3-furanthiol were the most intense aroma-active compounds. It was suggested that furaneol played an important role in the formation of burnt beef reaction flavor.

압출성형에 의해 제조된 구운 쇠고기 반응향의 향특성을 알아보기 위해 휘발성 성분 및 aroma-active화합물을 SDE-GC-MS-O법을 이용하여 분석하였다. HVP에 ribose, cysteine, furaneol, thiamin, methionine, 마늘 분말 및 인지질 등의 전구문질을 넣고 최적 압출성형 조건인 $160^{\circ}C$, 스크루 속도 45 rpm 및 윈료공급 속도 38 kg/hr에서 압출성형하였다. 압출성형에 의해 제조된 구운 쇠고기 반응향에서 모두 68개 의 휘발성 성분이 검출되었으며, 그 숫자는 furaneol을 빼고 압출성형 시킨 반응향과 HVP만 압출성형 시킨 시료에서 크게 줄어들었다. GC-O결과 구운 쇠고기 반응향에서 27개의 aroma-active 화합물이 검출되었으며, methional과 2-methyl-3-furanthiol이 가장 중요한 aroma-active화합물로 밝혀졌다. Furaneol이 구운 쇠고기 반응향 생성에 있어서 중요한 역할을 할 것으로 생각되어 진다.

Keywords

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