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Sheng L, Li S, Wang K, Chang Y, Deng J, Luo G. Gas–Liquid Microfluidics: Transition Hysteresis Behavior between Parallel Flow and Taylor Flow. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lin Sheng
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing 102201, China
| | - Kai Wang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yu Chang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jian Deng
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Guangsheng Luo
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Jiao Y, Zhao Y, Chang Y, Ma Z, Kobayashi I, Nakajima M, Neves MA. Enhancing the Formation and Stability of Oil-In-Water Emulsions Prepared by Microchannels Using Mixed Protein Emulsifiers. Front Nutr 2022; 9:822053. [PMID: 35711552 PMCID: PMC9196885 DOI: 10.3389/fnut.2022.822053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/24/2022] [Indexed: 11/18/2022] Open
Abstract
Although natural emulsifiers often have many drawbacks when used alone, their emulsifying ability and stability can usually be improved unexpectedly when used in combination. In this study, monodisperse emulsions stabilized by combining two natural protein emulsifiers, i.e., whey protein isolate (WPI) and sodium caseinate (SC), in different proportions were prepared using microchannel (MC) emulsification. The influences of temperature, pH, ionic strength, and storage time on the microstructure and stability of the emulsions were examined. Analysis of the microstructure and droplet size distribution revealed that the WPI-, SC-, and mixed protein-stabilized emulsions exhibited uniform droplet distribution. The droplet size and ξ-potential of the MC emulsions stabilized by mixed protein emulsifiers were higher than those of the emulsions stabilized by WPI or SC separately. The emulsions stabilized by the two types of proteins and mixed emulsifiers had better stability under high salt concentrations than the synthetic emulsifier Tween 20. WPI-SC-stabilized emulsions were more resistant to high temperatures (70–90°C) and exhibited excellent stabilization than those stabilized by WPI and SC, which was attributed to the more sufficient coverage provided by the two types of protein emulsifier layers and better protein adsorption at the oil-water interface. These results indicate that WPI-SC is a potential stabilizer for MC emulsion requirements. This study provides a basis for the formulation of monodisperse and stable natural emulsion systems.
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Affiliation(s)
- Yan Jiao
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.,College of Food and Biological Engineering, Qiqihar University, Qiqihar, China
| | - Yuntai Zhao
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Ying Chang
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, China
| | - Zhaoxiang Ma
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.,Biobased Chemistry and Technology, Wageningen University and Research, Wageningen, Netherlands
| | - Isao Kobayashi
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Mitsutoshi Nakajima
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.,Alliance for Research on Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Japan
| | - Marcos A Neves
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.,Alliance for Research on Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Japan
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