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Yu SJ, Hu SM, Zhu YZ, Zhou S, Dong S, Zhou T. Pickering emulsions stabilized by soybean protein isolate/chitosan hydrochloride complex and their applications in essential oil delivery. Int J Biol Macromol 2023; 250:126146. [PMID: 37544563 DOI: 10.1016/j.ijbiomac.2023.126146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/18/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
In this work, fabrication of soybean protein isolate (SPI)/chitosan hydrochloride (CHC) composite particles stabilized O/W Pickering emulsions using soybean oil as an oil phase was optimized by examining the effects of pH, SPI/CHC mass ratio, SPI/CHC composite particle concentration and oil phase fraction on the stability of the emulsions. The results showed that under the conditions of SPI/CHC mass ratio 1:1, pH 4 and particle concentration 2 %, the SPI/CHC composite particles could stabilize the emulsions with oil phase fraction up to 80 %. At an oil phase fraction of 60 %, the emulsions had a minimum particle size. The microstructure, storage and oxidation stabilities and rheological properties of the emulsions were determined. Using this SPI/CHC composite particle-stabilized Pickering emulsion template, citrus essential oil (CEO) Pickering emulsion (CEOP) was prepared. CEOP was found to markedly inhibit two food-related microorganisms, Staphylococcus aureus and Escherichia coli. In addition, the CEOP emulsion dilution (containing 4500 μL CEO/L) not only improved the water solubility of CEO, but also effectively retarded the browning and bacterial growth of fresh-cut apple. The SPI/CHC-stabilized Pickering emulsion template constructed in this work provides a promising alternative for the delivery of antimicrobial essential oils in the food industry.
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Affiliation(s)
- Si-Jia Yu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Shu-Min Hu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Yu-Zhu Zhu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Shaobo Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China; School of Science, Faculty of Engineering and Science, University of Greenwich, Central Avenue, Chatham ME4 4TB, UK
| | - Shuai Dong
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China
| | - Tao Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Xiasha, Hangzhou, Zhejiang 310018, PR China.
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Xie X, Yan J, Wu Q, Wang T, Chu F, Yang S. Rapid and efficient oil removal from O/W emulsions by hydrophobic porous polystyrene microspheres embedded with hydrophilic surface micro-regions. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128898. [PMID: 35460994 DOI: 10.1016/j.jhazmat.2022.128898] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/22/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Inspired by Namib Desert beetle's back which is patterned with different wetting properties, hydrophobic porous polystyrene microspheres embedded with hydrophilic surface micro-regions (HPHs) were designed and fabricated by the radical copolymerization in the W1/O/W2 double Pickering emulsions with high internal water phase. The synergistic effect of the hydrophobic surface and the hydrophilic surface micro-regions results in HPHs exhibiting superior performances for separating both surfactant-free and surfactant-stabilized O/W emulsions. After 60 s hand-shaking, the oil was absorbed and stored within HPHs which could be separated from the water using a 600-mesh sieve, and the TOC values of purified water could be reduced to 2.06 ± 0.06-67.38 ± 2.02 ppm when the initial oil content was 1 vol%. Meanwhile, HPHs could be recovered and reused through a simple treatment. The excellent oil removal efficiency was kept even after 50 cycles. High oil removal efficiency, general applicability, easy operation and excellent recyclability endow HPHs with great potential for practical applications. And this work provides a facile and general way to prepare porous polymer microspheres with wettability contrast surfaces.
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Affiliation(s)
- Xiaomin Xie
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Jingfan Yan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Qiong Wu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Tianyu Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Fumin Chu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Sen Yang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China.
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Murugan P, Bhuvaneshwari S, Vidhyeswari D. The extraction and process optimization of Cu (II) and Cd (II) using Pickering emulsion liquid membrane. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1863-1877. [PMID: 33905358 DOI: 10.2166/wst.2021.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the present study, the extraction of divalent heavy metals like copper [Cu (II)] and cadmium [Cd (II)] using a Pickering Emulsion Liquid Membrane (PELM) has been investigated by using three different surfactants such as Amphiphilic silica nanowires (ASNWs), Aluminum oxide nanoparticles (Alumina) and Sorbitan monooleate (SPAN 80). The influence of the process parameters such as pH, the stripping phase concentration, the agitation speed, and the carrier concentration on the extraction efficiency have been examined to find the optimum conditions at which the maximum recovery of Cu (II) and Cd (II) could take place. At optimum conditions, the extraction efficiency of 89.77% and 91.19% for Cu (II) and Cd (II) ions were achieved. Non-edible oils were used as diluent in this present study to reduce the need for toxic organic solvents in preparing PELM. The impact of each process factor on the extraction efficiency of Cu (II) and Cd (II) ions has been verified using analysis of variance (ANOVA). The higher values of F and lower values of P (less than 0.05) indicate pH is the most significant parameter on the percentage extraction of Cu (II) and Cd (II) using the Taguchi design approach.
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Affiliation(s)
- P Murugan
- Department of Petrochemical Engineering, SVS College of Engineering, Coimbatore, Tamilnadu 642109, India
| | - S Bhuvaneshwari
- Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode, Kerala 673 601, India E-mail:
| | - D Vidhyeswari
- Department of Chemical Engineering, National Institute of Technology Calicut, Kozhikode, Kerala 673 601, India E-mail:
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The combination of starch nanoparticles and Tween 80 results in enhanced emulsion stability. Int J Biol Macromol 2020; 163:2048-2059. [PMID: 32961176 DOI: 10.1016/j.ijbiomac.2020.09.111] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 02/03/2023]
Abstract
In this work, we aimed to investigate the effect of the combination of starch nanoparticles (SNPs) and Tween 80 (TW) on the stability of oil-in-water emulsions. The emulsions prepared under different SNPs/TW ratios and different oil fraction values were characterized by means of photography, optical microscopy, laser particle size analysis, rheological measurement, quartz crystal microbalance analysis, and confocal laser scanning microscopy. At an oil fraction value of 0.4, the emulsions with a 3: 1 ratio of SNPs (1.5%, w/v) to TW (0.5%, w/v) exhibited excellent storage stability over a long period of 30 d, which was significantly better than the 2% TW stabilized emulsion and the 2% SNPs stabilized emulsion. Compared with the SNPs stable emulsions, the presence of TW decreased the emulsion droplets size, which was beneficial to reduce the aggregation of droplets. Emulsions co-stabilized by SNPs and TW can maintain good performance under harsh conditions. The results of quartz crystal microbalance analysis and isothermal titration calorimetry revealed non-covalent interactions between SNPs and TW. The results showed that SNPs and TW co-existed at the oil-water interface and improved the performance of the emulsion.
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Overview on petroleum emulsions, formation, influence and demulsification treatment techniques. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2018.11.014] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Yang X, Li D, Zhai J, Wang F, Xue B, Zhu J, Li Y. Pickering emulsion prepared by bi-functional graphene oxide as efficient catalyst for aqueous nucleophilic substitution reactions. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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