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논문 기본 정보

자료유형
학술저널
저자정보
Joon-Sun Hong (Chungnam National University) Jung-Ah Shin (Chungnam National University) Ki-Teak Lee (Chungnam National University)
저널정보
충남대학교 농업과학연구소 Korean Journal of Agricultural Science Korean Journal of Agricultural Science Vol.45 No.2
발행연도
2018.6
수록면
265 - 282 (18page)

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초록· 키워드

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The purpose of this research was to produce symmetric (Saturated–Unsaturated–Saturated, SUS) triacylglycerol (TAG) using palm stearin fraction oil (PSFO) and high oleic sunflower oil (HOSO) as substrates to replace cocoa butter. PSFO was blended with HOSO (1 : 2 weight ratio), and lipozyme<SUP>®</SUP> TLIM (20 weight % of the substrate) was added. Interesterification was carried out in a shaking water bath at 55℃ at 220 rpm for 6 hours. The response surface methodology (RSM) through the central composite face design was employed to observe the optimized SUSTAG. The independent factors were the reaction temperature (X1: 65, 75 and 85℃), reaction time (X₂: 1, 3 and 5 hours) and ratio of TLIM (X₃: 10, 15 and 20 weight %). The dependent variables were Y₁ = Saturated–Unsaturated–Unsaturated (SUU, area %), Y₂ = SUS (area %), Y₃ = Saturated–Saturated–Unsaturated (SSU, area %), Y₄ = Unsaturated–Unsaturated–Unsaturated (UUU, area %), and Y₅ = sn-2 unsaturated fatty acid (area %). The optimal conditions from the central composite face design minimized acyl migration while maximizing the presence of unsaturated fatty acid at the sn-2 position (73.43 area %). The optimal conditions were X₁ = 65℃, X₂ = 1 hour, and X₃ = 20 weight%. As a result of the response surface analysis, the lack of fits was found as Y₁ = 0.622, Y₂ = 0.438, Y₃ = 0.264, Y₄ = 0.526, and Y₅ = 0.215, and their R² were 0.897, 0.944, 0.826, 0.857, and 0.867, respectively.

목차

Abstract
Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2018-520-003133059