Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel

Rheology properties of structured fluids, such as emulsion, are closely associated with their microstructure arrangements. Investigation of the rheology behaviour and microstructure of emulsion system provides a more profound understanding of its physical characteristics and potential application. S...

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Main Author: Ariyani, Novenia Oerip
Other Authors: Lim Sierin
Format: Final Year Project
Language:English
Published: 2018
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Online Access:http://hdl.handle.net/10356/75593
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-755932023-03-03T15:32:07Z Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel Ariyani, Novenia Oerip Lim Sierin School of Chemical and Biomedical Engineering DRNTU::Engineering::Bioengineering Rheology properties of structured fluids, such as emulsion, are closely associated with their microstructure arrangements. Investigation of the rheology behaviour and microstructure of emulsion system provides a more profound understanding of its physical characteristics and potential application. Self-assembled E2-protein nanocage has been successfully employed as a Pickering emulsifier in an oil-in-water emulsion system. A specific oil/water ratio composition of the Pickering emulsion produced an emulsion gel with viscoelastic behaviour that is desirable in cosmetic formulation. However, there has been no further characterisation of the Pickering emulsion gel dynamic physical properties and microstructure. In this project, we performed a deeper investigation of the emulsion gel rheological properties using dynamic mechanical analysis and microstructure formation through electron microscopy observation. Experiments were conducted on the Pickering emulsion gel with different oil/water ratio compositions or various storage gelation temperatures. All formulated E2-stabilised Pickering emulsion gels demonstrated shear thinning and solid-like behaviour that is similar to the viscoelastic characteristic of commercialised creams and lotions. Network connection among the dispersed droplets of the emulsion gel system was also observed in the electron microgram obtained using Transmission Electron Microscopy (TEM) and Field Emission Scanning Electron Microscopy (FESEM) to confirm the solid-like structure of the system. These characteristics of the Pickering emulsion gel are of potential benefits in cosmetic products. Our study provides as a foundation for optimisation of E2-stabilised Pickering emulsion gel application in cosmetic formulation. Bachelor of Engineering (Chemical and Biomolecular Engineering) 2018-06-05T02:09:06Z 2018-06-05T02:09:06Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/75593 en Nanyang Technological University 67 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Bioengineering
spellingShingle DRNTU::Engineering::Bioengineering
Ariyani, Novenia Oerip
Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
description Rheology properties of structured fluids, such as emulsion, are closely associated with their microstructure arrangements. Investigation of the rheology behaviour and microstructure of emulsion system provides a more profound understanding of its physical characteristics and potential application. Self-assembled E2-protein nanocage has been successfully employed as a Pickering emulsifier in an oil-in-water emulsion system. A specific oil/water ratio composition of the Pickering emulsion produced an emulsion gel with viscoelastic behaviour that is desirable in cosmetic formulation. However, there has been no further characterisation of the Pickering emulsion gel dynamic physical properties and microstructure. In this project, we performed a deeper investigation of the emulsion gel rheological properties using dynamic mechanical analysis and microstructure formation through electron microscopy observation. Experiments were conducted on the Pickering emulsion gel with different oil/water ratio compositions or various storage gelation temperatures. All formulated E2-stabilised Pickering emulsion gels demonstrated shear thinning and solid-like behaviour that is similar to the viscoelastic characteristic of commercialised creams and lotions. Network connection among the dispersed droplets of the emulsion gel system was also observed in the electron microgram obtained using Transmission Electron Microscopy (TEM) and Field Emission Scanning Electron Microscopy (FESEM) to confirm the solid-like structure of the system. These characteristics of the Pickering emulsion gel are of potential benefits in cosmetic products. Our study provides as a foundation for optimisation of E2-stabilised Pickering emulsion gel application in cosmetic formulation.
author2 Lim Sierin
author_facet Lim Sierin
Ariyani, Novenia Oerip
format Final Year Project
author Ariyani, Novenia Oerip
author_sort Ariyani, Novenia Oerip
title Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
title_short Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
title_full Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
title_fullStr Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
title_full_unstemmed Investigation on the stability, microstructure, and rheology of E2 protein-stabilised pickering emulsion gel
title_sort investigation on the stability, microstructure, and rheology of e2 protein-stabilised pickering emulsion gel
publishDate 2018
url http://hdl.handle.net/10356/75593
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