High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels
The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ul...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ni, Yang [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Constructing heterogeneous conductive network with core-shell AgFe - Jiang, Tao ELSEVIER, 2022, Amsterdam |
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| Übergeordnetes Werk: |
volume:125 ; year:2022 ; pages:0 |
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| DOI / URN: |
10.1016/j.foodhyd.2021.107395 |
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ELV056469659 |
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| 520 | |a The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. | ||
| 520 | |a The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. | ||
| 650 | 7 | |a Pickering high internal phase emulsion |2 Elsevier | |
| 650 | 7 | |a Nanocellulose hydrogel |2 Elsevier | |
| 650 | 7 | |a Ultrasound |2 Elsevier | |
| 650 | 7 | |a Small-angle X-ray scattering |2 Elsevier | |
| 700 | 1 | |a Wu, Jingjing |4 oth | |
| 700 | 1 | |a Jiang, Yanting |4 oth | |
| 700 | 1 | |a Li, Jinwei |4 oth | |
| 700 | 1 | |a Fan, Liuping |4 oth | |
| 700 | 1 | |a Huang, Shengquan |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Jiang, Tao ELSEVIER |t Constructing heterogeneous conductive network with core-shell AgFe |d 2022 |g Amsterdam |w (DE-627)ELV008810036 |
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10.1016/j.foodhyd.2021.107395 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001640.pica (DE-627)ELV056469659 (ELSEVIER)S0268-005X(21)00811-0 DE-627 ger DE-627 rakwb eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Ni, Yang verfasserin aut High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. Pickering high internal phase emulsion Elsevier Nanocellulose hydrogel Elsevier Ultrasound Elsevier Small-angle X-ray scattering Elsevier Wu, Jingjing oth Jiang, Yanting oth Li, Jinwei oth Fan, Liuping oth Huang, Shengquan oth Enthalten in Elsevier Jiang, Tao ELSEVIER Constructing heterogeneous conductive network with core-shell AgFe 2022 Amsterdam (DE-627)ELV008810036 volume:125 year:2022 pages:0 https://doi.org/10.1016/j.foodhyd.2021.107395 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 125 2022 0 |
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10.1016/j.foodhyd.2021.107395 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001640.pica (DE-627)ELV056469659 (ELSEVIER)S0268-005X(21)00811-0 DE-627 ger DE-627 rakwb eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Ni, Yang verfasserin aut High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. Pickering high internal phase emulsion Elsevier Nanocellulose hydrogel Elsevier Ultrasound Elsevier Small-angle X-ray scattering Elsevier Wu, Jingjing oth Jiang, Yanting oth Li, Jinwei oth Fan, Liuping oth Huang, Shengquan oth Enthalten in Elsevier Jiang, Tao ELSEVIER Constructing heterogeneous conductive network with core-shell AgFe 2022 Amsterdam (DE-627)ELV008810036 volume:125 year:2022 pages:0 https://doi.org/10.1016/j.foodhyd.2021.107395 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 125 2022 0 |
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10.1016/j.foodhyd.2021.107395 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001640.pica (DE-627)ELV056469659 (ELSEVIER)S0268-005X(21)00811-0 DE-627 ger DE-627 rakwb eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Ni, Yang verfasserin aut High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. Pickering high internal phase emulsion Elsevier Nanocellulose hydrogel Elsevier Ultrasound Elsevier Small-angle X-ray scattering Elsevier Wu, Jingjing oth Jiang, Yanting oth Li, Jinwei oth Fan, Liuping oth Huang, Shengquan oth Enthalten in Elsevier Jiang, Tao ELSEVIER Constructing heterogeneous conductive network with core-shell AgFe 2022 Amsterdam (DE-627)ELV008810036 volume:125 year:2022 pages:0 https://doi.org/10.1016/j.foodhyd.2021.107395 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 125 2022 0 |
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10.1016/j.foodhyd.2021.107395 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001640.pica (DE-627)ELV056469659 (ELSEVIER)S0268-005X(21)00811-0 DE-627 ger DE-627 rakwb eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Ni, Yang verfasserin aut High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. Pickering high internal phase emulsion Elsevier Nanocellulose hydrogel Elsevier Ultrasound Elsevier Small-angle X-ray scattering Elsevier Wu, Jingjing oth Jiang, Yanting oth Li, Jinwei oth Fan, Liuping oth Huang, Shengquan oth Enthalten in Elsevier Jiang, Tao ELSEVIER Constructing heterogeneous conductive network with core-shell AgFe 2022 Amsterdam (DE-627)ELV008810036 volume:125 year:2022 pages:0 https://doi.org/10.1016/j.foodhyd.2021.107395 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 125 2022 0 |
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10.1016/j.foodhyd.2021.107395 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001640.pica (DE-627)ELV056469659 (ELSEVIER)S0268-005X(21)00811-0 DE-627 ger DE-627 rakwb eng 670 530 660 VZ 33.68 bkl 35.18 bkl 52.78 bkl Ni, Yang verfasserin aut High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. Pickering high internal phase emulsion Elsevier Nanocellulose hydrogel Elsevier Ultrasound Elsevier Small-angle X-ray scattering Elsevier Wu, Jingjing oth Jiang, Yanting oth Li, Jinwei oth Fan, Liuping oth Huang, Shengquan oth Enthalten in Elsevier Jiang, Tao ELSEVIER Constructing heterogeneous conductive network with core-shell AgFe 2022 Amsterdam (DE-627)ELV008810036 volume:125 year:2022 pages:0 https://doi.org/10.1016/j.foodhyd.2021.107395 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 35.18 Kolloidchemie Grenzflächenchemie VZ 52.78 Oberflächentechnik Wärmebehandlung VZ AR 125 2022 0 |
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High-internal-phase pickering emulsions stabilized by ultrasound-induced nanocellulose hydrogels |
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The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. |
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The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. |
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The present work applied nanocellulose hydrogels for the first time to stabilize high internal phase emulsions (HIPEs, oil-in-water) with a 75% oil phase. Nanocellulose hydrogels are easily fabricated by ultrasonic treatments based on the physical entanglement between slender nanocelluloses. This ultrasound-induced hydrogel had reversible gelation properties. Small-angle X-ray scattering measurements revealed that ultrasonic treatments reduced the interfibrillar distance of hydrogels from 86.81 to 6.05 nm with increasing ultrasonic time from 10 to 90 min. Hydrogels with small interfibrillar distances showed the stronger gel strength. The influence of the hydrogel/water ratio (ranging from 2:8–8:2, w/w) in the aqueous phase on the formation and stability of HIPEs was investigated. Stable HIPEs could be prepared using hydrogel ratios ranging from 3 to 7. Nevertheless, the gel behavior of HIPEs depended on the hydrogel ratio level. HIPEs with strong gel strength showed the better physical and storage stability. The stabilization mechanism was clearly exhibited by the three-dimensional image from confocal laser scanning microscopy (CLSM): gaps between oil droplets were fully filled with the continuous network structure which was re-formed by dispersed hydrogels due to its reversible gelation property. This continuous network structure effectively solidified the surrounding oil droplets, preventing oil droplet aggregation and coalescence. The findings could extend the applications of unmodified nanocellulose in emulsion formulations in the food and pharmaceutical fields. |
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