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단백질-안정화 에멀션의 이화학적 특성 분석 및 지방 대체 소재로서의 활용 KCI 등재

Physicochemical Characterization of Protein-Stabilized Emulsions and Their Utilization as a Fat Replacer

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산업식품공학 (Food Engineering Progress)
한국산업식품공학회 (Korean Society for Food Engineering)
초록

The physicochemical properties of the emulsions prepared with four different proteins (pea protein isolate, whey protein isolate, soy protein concentrate, and soy protein isolate) were characterized in terms of particle size, rheological property, and freeze-thaw stability, while the feasibility of the protein-stabilized emulsions as a fat replacer was evaluated. Confocal laser scanning microscopic analysis showed that O/W emulsions were successfully prepared with all the proteins; however, the smallest particle size and excellent syneresis were observed in the WPI-stabilized emulsions. The use of WPI-stabilized emulsions as an alternative for shortening up to 50% level did not lead to differences in the muffin batters’ specific gravity and viscoelastic properties. After baking, the substitution of shortening with the WPI emulsions at up to 50% by weight did not significantly affect the muffins’ specific volume and texture characteristics.

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저자
  • 김민효(세종대학교 식품생명공학과 및 탄수화물소재연구소) | Minhyo Kim (Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University)
  • 양근혁(세종대학교 식품생명공학과 및 탄수화물소재연구소) | Geunhyuk Yang (Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University)
  • 이수용(세종대학교 식품생명공학과 및 탄수화물소재연구소) | Suyong Lee (Department of Food Science & Biotechnology and Carbohydrate Bioproduct Research Center, Sejong University) Corresponding author