1
|
Guo Y, Liu C, Wang Y, Ren S, Zheng X, Zhang J, Cheng T, Guo Z, Wang Z. Impact of Cavitation Jet on the Structural, Emulsifying Features and Interfacial Features of Soluble Soybean Protein Oxidized Aggregates. Foods 2023; 12:foods12050909. [PMID: 36900426 PMCID: PMC10000764 DOI: 10.3390/foods12050909] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/18/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
A cavitation jet can enhance food proteins' functionalities by regulating solvable oxidized soybean protein accumulates (SOSPI). We investigated the impacts of cavitation jet treatment on the emulsifying, structural and interfacial features of soluble soybean protein oxidation accumulate. Findings have shown that radicals in an oxidative environment not only induce proteins to form insoluble oxidative aggregates with a large particle size and high molecular weight, but also attack the protein side chains to form soluble small molecular weight protein aggregates. Emulsion prepared by SOSPI shows worse interface properties than OSPI. A cavitation jet at a short treating time (<6 min) has been shown to break the core aggregation skeleton of soybean protein insoluble aggregates, and insoluble aggregates into soluble aggregates resulting in an increase of emulsion activity (EAI) and constancy (ESI), and a decrease of interfacial tension from 25.15 to 20.19 mN/m. However, a cavitation jet at a long treating time (>6 min) would cause soluble oxidized aggregates to reaggregate through an anti-parallel intermolecular β-sheet, which resulted in lower EAI and ESI, and a higher interfacial tension (22.44 mN/m). The results showed that suitable cavitation jet treatment could adjust the structural and functional features of SOSPI by targeted regulated transformation between the soluble and insoluble components.
Collapse
|
2
|
Zheng C, Wang Z, Wang Q, Chen H, Wang C, Hou J, Shi L, Liu D, Zhang L. Effect of Fe(III) Species on the Stability of a Water-Model Oil Emulsion with an Anionic Sulfonate Surfactant as an Emulsifier. ACS OMEGA 2022; 7:36343-36353. [PMID: 36278041 PMCID: PMC9583334 DOI: 10.1021/acsomega.2c03984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
The stability of an emulsion has an important effect on enhancing oil recovery. However, the effect of ions with different valences on the stability of the emulsion emulsified by an ionic surfactant is not fully understood. In this study, the effects of Fe(III) species on the stability, microscopic morphology of droplets, interfacial properties, and rheological properties of water-model oil emulsions emulsified by sodium dodecyl benzenesulfonate (SDBS) were explored. The effect of Fe(III) species on the stability of a W/O crude oil emulsion was also explored. The stability experiment results show that the addition of the Fe(III) species impairs the stability of the model oil-in-water (O/W) emulsion, in which the O/W model oil emulsion is inverted to a water-in-model oil (W/O) emulsion at ∼99 ppm. With the increase of Fe(III) species concentration, stable W/O model oil and W/O crude oil emulsions are obtained. The rheological results indicated that the existence of the Fe(III) species has a remarkable effect on the viscosity and viscoelastic behaviors of the water-model oil emulsion. The calculation results based on Derjaguin-Landau-Verwey-Overbeek (DLVO) theory are in accord with the stability experiment results. Furthermore, the addition of EO groups makes the phase inversion point appear at a higher Fe(III) species concentration, forming a more stable W/O model oil emulsion and a more unstable O/W model oil emulsion. The experimental results are helpful to comprehensively understand the effect of Fe(III) species on the stability of an emulsion emulsified by an anionic sulfonate surfactant, which can help to enhance the oil recovery.
Collapse
Affiliation(s)
- Cailing Zheng
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao, Shandong266555, People’s Republic of China
| | - Zi Wang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao, Shandong266555, People’s Republic of China
| | - Qiuxia Wang
- China
National Offshore Oil Corporation China Ltd., Tianjin Branch, Tianjin300459, People’s Republic of China
| | - Hongju Chen
- Northwest
Oilfield Branch, SINOPEC, Urumqi830011, People’s Republic of China
| | - Chuangye Wang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao, Shandong266555, People’s Republic of China
| | - Jian Hou
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, Shandong266555, People’s Republic of China
| | - Lina Shi
- College
of Science, China University of Petroleum
(East China), Qingdao, Shandong266555, People’s Republic of China
| | - Dexin Liu
- China University
of Petroleum (East China), No. 66, Changjiang West Road, Huangdao District, Qingdao, Shandong266555, People’s Republic of China
| | - Longli Zhang
- College
of Chemistry and Chemical Engineering, China
University of Petroleum (East China), Qingdao, Shandong266555, People’s Republic of China
| |
Collapse
|
3
|
DHAHIR RK, AL-NIMA AM, AL-BAZZAZ F. Nanoemulsions as Ophthalmic Drug Delivery Systems. Turk J Pharm Sci 2021; 18:652-664. [PMID: 34708428 PMCID: PMC8562122 DOI: 10.4274/tjps.galenos.2020.59319] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 06/22/2020] [Indexed: 12/19/2022]
Abstract
Nanoemulsions are liquid-in-liquid dispersion with a droplet size of about 100 nm. They have a transparent appearance, high rate of bioavailability, and increased shelf life. Nanoemulsions mainly consist of oil, water, surfactant, and cosurfactant and can be prepared by high- and low-energy methods. Diluted nanoemulsions are utilized for the delivery of ophthalmic drugs due to their capability to penetrate the deep layers of the ocular structure, provide a sustained release effect, and reduce the frequency of administration and side effects. These nanoemulsions are subjected to certain tests, such as safety, stability, pH profile, rheological studies, and so on. Cationic nanoemulsions are prepared for topical ophthalmic delivery of active ingredients from cationic agents to increase the drug residence time on the ocular surface, reducing their clearance from the ocular surface and improving drug bioavailability. This review article summarizes the main characteristics of nanoemulsions, ophthalmic nanoemulsions, and cationic nanoemulsions and their components, methods of preparation, and the evaluation parameters for ophthalmic nanoemulsions.
Collapse
Affiliation(s)
- Rasha Khalid DHAHIR
- Department of Pharmaceutics, College of Pharmacy, University of Mosul, Mosul, Iraq
| | | | - Fadia AL-BAZZAZ
- Department of Pharmaceutics, College of Pharmacy, University of Mosul, Mosul, Iraq
| |
Collapse
|
4
|
Sekeri SH, Ibrahim MNM, Umar K, Yaqoob AA, Azmi MN, Hussin MH, Othman MBH, Malik MFIA. Preparation and characterization of nanosized lignin from oil palm (Elaeis guineensis) biomass as a novel emulsifying agent. Int J Biol Macromol 2020; 164:3114-3124. [PMID: 32853611 DOI: 10.1016/j.ijbiomac.2020.08.181] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/18/2020] [Accepted: 08/22/2020] [Indexed: 12/01/2022]
Abstract
A study was carried out to determine the effectiveness of lignin, extracted from oil palm (Elaeis guineensis) biomass as water-in-oil (W/O) emulsifying agent. To achieve this goal, soda lignin (SL) was extracted via soda pulping process and a series of nanosized soda lignin (NSL) were prepared using homogenizer at three different speed i.e. 10,400 rpm (NSL 10), 11,400 rpm (NSL 11) and 12,400 rpm (NSL 12) for one hour. All prepared samples were characterized by FT-IR, UV-Vis spectroscopy, thermogravimetric analysis (TGA), zeta potential analyser, Transmission Electron Microscope (TEM) and Extreme High Resolution Field Emission Scanning Electron Microscope (XHR-FESEM). The result of FTIR showed that there is no prominent change occurred in spectra of all samples while a good stability was reflected by TGA curves. The percentage of creaming index and visual observations of all samples demonstrated that NSL 12 and dosage 2 g (out of 1 g, 1.5 g and 2 g) were found to be the best among all samples. Furthermore, the results of IFT indicate that NSL 12 was proven to be more stable than the commercial product. Therefore, NSL 12 is selected for toxicological studies and was found safe in both, in vitro and in vivo studies.
Collapse
Affiliation(s)
- Siti Hajar Sekeri
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Mohamad Nasir Mohamad Ibrahim
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Khalid Umar
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Asim Ali Yaqoob
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Mohamad Nurul Azmi
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - M Hazwan Hussin
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Muhammad Bisyrul Hafi Othman
- Materials Technology Research Group (MaTRec), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | | |
Collapse
|