화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.18, No.2, 191-199, June, 2012
Export Citation
초임계 이산화탄소 처리 공정에 의한 다시마 유래 이취성분 제거
Removal of Off-flavor from Laminaria Japonica by Treatment Process of Supercritical Carbon Dioxide
박정남, 김령희, 우희철1, 전병수†
  • 부경대학교 식품공학과, 608-737 부산광역시 남구 용소로 45
  • 1부경대학교 화학공학과, 608-739 부산광역시 남구 신선로 365
Jung-Nam Park, Ryoung-Hee Kim, Hee Chul Woo1, and Byung-Soo Chun†
  • Department of Food Science and Technology, Pukyong National University, 608-737, 45 Yongso-ro, Nam-Gu, Busan, Korea
  • 1Department of Chemical Engineering, Pukyong National University, 608-739, 365 Sinseon-ro, Nam-Gu, Busan, Korea
E-mail:
초록
다시마 유래 이취 및 휘발성 유기 성분을 효과적으로 저감 또는 제거하기 위하여, 초임계 이산화탄소의 연속적인 처리 공정이 실험적으로 적용되었다. 다시마 시료는 동결 건조 후 710 μm의 크기로 균질화하여 사용하였으며, 초임계 이산화탄소 처리에 의한 효과를 평가하기 위하여 다양한 압력(10~25 MPa) 및 온도(35~55 ℃) 조건에서 실험을 수행하였다. 한편, 실험에 사용된 이산화탄소의 유입 유속은 26.81 g/min으로 일정하게 고정하였다. 초임계 이산화탄소 처리 전과 후, 다시마 유래 이취 및 휘발성 유기 성분은 기체 크로마토그래피-질량분석기에 의하여 동정되었으며, 다시마 원료에서 알코올, 알데하이드, 에스터 및 산, 케톤, 할로젠 화합물 그리고 탄화수소계를 주 성분으로 하는 총 47종의 이취 및 휘발성 유기 성분이 동정되었다. 초임계 이산화탄소 처리 후 모든 실험 조건에서 이취 및 휘발성 유기 성분이 저감 또는 제거되었고, 그 중 25 MPa, 55 ℃ 의 실험 조건에서 87.48%로 가장 높은 제거율을 보여주었다.
In order to reduce or remove off-flavor and volatile organic compounds (VOCs) from Laminaria japonica effectively, continuous treatment process by supercritical carbon dioxide (SC-CO2) was applied. After freeze-drying, Laminaria japonica powdered with 710 μm was used. Experiments were carried out at temperature range from 35 to 55 ℃, and pressure range from 10 to 25 MPa for evaluation of SC-CO2 treatment effect. Flow rate of carbon dioxide used in this reseach was constantly fixed at 26.81 g/min. Before and after treatment of SC-CO2, off-flavor and VOCs from Laminaria japonica were analyzed by gas chromatography-mass spectrometry detector (GC-MSD). Total 47 VOCs emitted from Laminaria japonica were identified before treatment of SC-CO2, major components of seaweed smell (ordor) in Laminaria japonica were identified as alcohols, aldehydes, ester and acids, ketone, halogenated compounds and hydrocarbon. Off-flavor and VOCs in all experimental conditions was reduced or removed after SC-CO2 treatment. Among the experimental conditions, the highest removal yield was at 25 MPa and 55 ℃.
Keywords:Supercritical carbon dioxide;Laminaria japonica;Volatile organic compounds;Off-flavor;GC-MSD
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