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

  • 제39권10호
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  • Pages.1487-1494
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  • 2010
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  • 1226-3311(pISSN)
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  • 2288-5978(eISSN)
한국식품영양과학회 (The Korean Society of Food Science and Nutrition)
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Coconut Oil 분별유와 Palm 분별유로부터 효소적 Interesterification에 의한 코코아 버터 대체유지 합성

Synthesis of Cocoa Butter Alternative from Coconut Oil Fraction and Palm Oil Fractions by Lipase-Catalyzed Interesterification

  • Bae, Sang-Kyun (Dept. of Food Science and Technology, Chungnam National University) ;
  • Lee, Kyung-Su (Dept. of Food Science and Technology, Chungnam National University) ;
  • Lee, Ki-Teak (Dept. of Food Science and Technology, Chungnam National University)
  • 투고 : 2010.05.14
  • 심사 : 2010.10.04
  • 발행 : 2010.10.31
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초록

본 연구는 coconut oil 분별유를 사용하여 코코아 버터 대체유지를 개발하고자 하였으며, RP-HPLC 및 지방산 분석을 수행하여 그 결과를 commercial CBR와 비교하였다. TAG의 PN 분석결과, 코코아 버터 대체유지에서 전체 TAG의 93.08%가 PN=40~48에 포함되었고, commercial CBR는 94.11%이었다. 지방산조성 분석결과, commercial CBR와 코코아 버터 대체유지의 불포화지방산이 차지하는 비율은 각각 18.68%와 17.39%로 유사하였다. 두 유지 모두 지방산 중 가장 높은 비율을 차지하는 지방산은 palmitic acid로 코코아 버터 대체유지에서 46.03%, commercial CBR에서 47.75%이었으며, TAG의 sn-2 위치에서 불포화지방산의 비율은 각각 23.22%와 16.06%로 코코아 버터 대체유지가 높았다. 두 유지 모두 $30{\sim}45^{\circ}C$ 온도 구간에서 급격한 용융곡선을 가짐으로써 코코아 버터 대체유지로서의 특성을 가지고 있었다. Polymorphic form 분석결과, 제조된 코코아버터 대체유지와 commercial CBR에서 $4.24{\AA}$과 $3.83{\AA}$에서 short spacing을 나타내며, ${\beta}'$ 형태의 결정형을 나타내었다.

Structured lipid (SL) for cocoa butter alternative was synthesized by interesterification of coconut oil fraction and palm stearin (6:4 and 8:2, by weight) in a shaking water bath at $60^{\circ}C$ and 180 rpm. It was performed for various reaction times (1, 2, 3, and 6 hr). The reaction was catalyzed by sn-1,3 specific Lipozyme TLIM (immobilized lipase from Thermomyces lanuginosus). SL-solid part was obtained from acetone fractionation at $0^{\circ}C$. SL-solid part was blended with other palm oils and fractions for desirable property of cocoa butter alternative (SL-solid part : palm middle fraction : palm stearin solid : palm oil, 70.4:18.4:2.9:8.3, by weight). In reversed-phase HPLC analysis, triacylglycerol species of cocoa butter alternative had partition number of 40 (10.77%), 42 (13.06%), 44~46 (17.38%) and 48 (51.88%). Major fatty acids of cocoa butter alternative were lauric acid (16.5%), myristic acid (12.28%), palmitic acid (46.03%), and linoleic acid (14.75%). Solid fat content (SFC) and polymorphic form (${\beta}'$ form) of cocoa butter alternative prepared were similar to those of commercial cocoa butter replacer (CBR).

키워드

참고문헌

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피인용 문헌

  1. Regiospecific Positioning of Palmitic Acid in Triacylglycerol Structure of Enzymatically Modified Lipids Affects Physicochemical and In Vitro Digestion Properties vol.26, pp.13, 2010, https://doi.org/10.3390/molecules26134015