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Adel F, Shaaban AFF, El-Dougdoug W, Tantawy AH, Metwally AM. Novel synthesized amide-incorporating copolymeric surfactants based on natural wastes as petro-dispersing agents: Design, synthesis, and characterizations. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wang N, Zhang Y, Li Y, Liu Y, Wang C, Xu B, Zhao L, Xu B. Interfacial rheological properties of cholesteryl-oligopeptide surfactants: Effects of hydrophilic group structure. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Guo J, Sun L, Zhang F, Sun B, Xu B, Zhou Y. Review: Progress in synthesis, properties and application of amino acid surfactants. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Zhang J, Li Q, Wang S, Zhang G, He S, Liu C, Wang C, Xu B. Preparation, surface activities, and aggregation behaviors of N-acyl oligopeptide surfactants based on glycylglycine and glycylglycylglycine. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mekkaoui A, Liu Y, Zhang P, Ullah S, Wang C, Xu B. Effect of Bile Salts on the Interfacial Dilational Rheology of Lecithin in the Lipid Digestion Process. J Oleo Sci 2021; 70:1069-1080. [PMID: 34248099 DOI: 10.5650/jos.ess21081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The effects of bile salts on the emulsifier adsorption layer play a crucial role in lipid digestion. The current study selected sodium cholate (NaCh) and lecithin as model compounds for bile salts and food emulsifiers, respectively. The interface dilational rheological and emulsification properties of NaCh and lecithin were carried out. The results showed that the NaCh molecules could quickly diffuse from the bulk to interface, which broke the tightly-arranged interfacial layer of lecithin and enhanced the viscoelasticity of interfacial film. As a result, the interfacial adsorption layer, which was originally dominated by the slow relaxation processes within the interface, was transformed into one controlled by the fast molecular diffusion exchange. This accelerated the exchange of materials between the bulk and interface, thereby creating suitable conditions for the interfacial adsorption of lipases, which promoted the digestion process. These results provided a mechanism for the promotion of lipid digestion by bile salts from the perspective of interfacial viscoelasticity and relaxation processes. A deeper understanding of the interfacial behavior of bile salts with emulsifiers would provide a basis for the rational design of interfacial layer for modulating lipid digestion.
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Affiliation(s)
- Aicha Mekkaoui
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Yang Liu
- School of Light Industry, Beijing Technology and Business University
| | - Pingping Zhang
- School of Light Industry, Beijing Technology and Business University
| | - Sana Ullah
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
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Li G, Yi X, Jiang J, Zhang Y, Li Y. Dynamic surface properties and dilational rheology of acidic and lactonic sophorolipids at the air-water interface. Colloids Surf B Biointerfaces 2020; 195:111248. [PMID: 32769061 DOI: 10.1016/j.colsurfb.2020.111248] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
This study analyzes the equilibrium and dynamic surface tension curves of acidic and lactonic sophorolipids (SLs). It also investigates the dilational properties of the surface adsorptive film. Given their high hydrophobicity, lactonic SLs have lower surface tension and critical micelle concentration (CMC) than acidic SLs. As cNaCl increases, the CMC values and the corresponding surface tension (γcmc) of acidic and lactonic SLs decrease gradually. For dynamic surface properties, lactonic SLs have a high diffusive rate from the bulk phase to the subsurface. At 0.05 CMC, the initial adsorption of acidic and lactonic SLs is diffusion-controlled. As csurfactant increases, the values of diffusion coefficient (D) show a downward trend, and the mechanism is mixed kinetic diffusion. Adding NaCl increases the D values of acidic and lactonic SLs, and the influence degree for acidic SLs is more considerable than that for lactonic SLs. As frequency (ω) increases (0.005∼0.5 Hz), the dilational elasticity increases, and the phase angle decrease. The dilational elasticity of acidic and lactonic SLs shows a low-frequency dependence. Compared with acidic SLs, lactonic SLs have better dynamic surface properties, which decrease the gradient of interfacial tension because of the interface deformation. Consequently, the lactonic SLs exhibit a relatively small dilational elasticity. At 0.1 Hz, the dilational elasticity of acidic and lactonic SLs reaches the maximum values at 0.05CMC and 0.075CMC, respectively. When csurfactant rises near CMC, the phase angle increases obviously, and the dilational elasticity further decreases. This result is attributed to the fast exchange of surfactant molecules between the interface and the micelles.
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Affiliation(s)
- Guofeng Li
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan Province 610059, China; College of Energy, Chengdu University of Technology, Chengdu, Sichuan Province 610059, China; Petro-Engineering Research Institute of North China Oil and Gas Branch, Sinopec, Zhengzhou, Henan Province 450006, China
| | - Xiangyi Yi
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan Province 610059, China; College of Energy, Chengdu University of Technology, Chengdu, Sichuan Province 610059, China; Petro-Engineering Research Institute of North China Oil and Gas Branch, Sinopec, Zhengzhou, Henan Province 450006, China.
| | - Jitao Jiang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan Province 610059, China; College of Energy, Chengdu University of Technology, Chengdu, Sichuan Province 610059, China
| | - Yu Zhang
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan Province 610059, China; College of Energy, Chengdu University of Technology, Chengdu, Sichuan Province 610059, China; Petro-Engineering Research Institute of North China Oil and Gas Branch, Sinopec, Zhengzhou, Henan Province 450006, China
| | - Yueli Li
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), Chengdu, Sichuan Province 610059, China; College of Energy, Chengdu University of Technology, Chengdu, Sichuan Province 610059, China; Petro-Engineering Research Institute of North China Oil and Gas Branch, Sinopec, Zhengzhou, Henan Province 450006, China
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