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논문 기본 정보

자료유형
학술저널
저자정보
Park, Sung Hee (Department of Marine Food Science and Technology, Gangneung-Wonju National University) Min, Sang-Gi (Department of Bioindustrial Technologies, Konkuk University) Jo, Yeon-Ji (Department of Bioindustrial Technologies, Konkuk University) Chun, Ji-Yeon (Department of Food Bioengineering, Jeju National University)
저널정보
한국축산식품학회 한국축산식품학회지 한국축산식품학회지 제35권 제5호
발행연도
2015.1
수록면
630 - 637 (8page)

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In the dairy industry, natural plant-based powders are widely used to develop flavor and functionality. However, most of these ingredients are water-insoluble; therefore, emulsification is essential. In this study, the efficacy of high pressure homogenization (HPH) on natural plant (chocolate or vanilla)-based model emulsions was investigated. The particle size, electrical conductivity, Brix, pH, and color were analyzed after HPH. HPH significantly decreased the particle size of chocolate-based emulsions as a function of elevated pressures (20-100 MPa). HPH decreased the mean particle size of chocolate-based emulsions from 29.01 μm to 5.12 μm, and that of vanilla-based emulsions from 4.18 μm to 2.44 μm. Electrical conductivity increased as a function of the elevated pressures after HPH, for both chocolate- and vanilla-based model emulsions. HPH at 100 MPa increased the electrical conductivity of chocolate-based model emulsions from 0.570 S/m to 0.680 S/m, and that of vanilla-based model emulsions from 0.573 S/m to 0.601 S/m. Increased electrical conductivity would be attributed to colloidal phase modification and dispersion of oil globules. Brix of both chocolate- and vanilla-based model emulsions gradually increased as a function of the HPH pressure. Thus, HPH increased the solubility of plant-based powders by decreasing the particle size. This study demonstrated the potential use of HPH for enhancing the emulsification process and stability of the natural plant powders for applications with dairy products.

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