1
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Grella Miranda C, Speranza P, Carla Kawazoe Sato A. Cassava leaves as an alternative protein source: Effect of alkaline parameters and precipitation conditions on protein extraction and recovery. Food Res Int 2024; 192:114807. [PMID: 39147471 DOI: 10.1016/j.foodres.2024.114807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 07/12/2024] [Accepted: 07/21/2024] [Indexed: 08/17/2024]
Abstract
Alternative protein sources have been required to meet the significant plant protein demand. Agro-industrial by-products such as leaves have considerable potential as a source of macromolecules once they are mostly discarded as waste. The current study evaluated dried cassava leaves as a protein source. First, alkaline extraction parameters (solid-liquid ratio, pH, and temperature) were optimized and the run that result in the highest protein yield were acidified at pH 2.5 or 4. The influence of carbohydrate solubilized on protein precipitation was also evaluated by removing it via alcoholic extraction prior to precipitation. The experimental design showed that high pH and temperature conditions associated with a low solid-liquid ratio led to increased protein yields. The presence of carbohydrates in the supernatant significantly influenced protein precipitation. The protein concentrate had around 17.51% protein when it was obtained from a supernatant with carbohydrates, while protein content increased to 26.88% when it was obtained from carbohydrate-free supernatant. The precipitation pH also influenced protein content, whereas protein content significantly decreased when pH increased from 2.5 to 4. The natural interaction between carbohydrates and proteins from cassava leaves positively influenced the emulsion stability index and the foaming capacity and stability. Thus, the presented results bring insights into challenges in extracting and precipitation proteins from agro-industrial by-products.
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Affiliation(s)
- Cristiane Grella Miranda
- Department of Food Engineering, School of Food Engineering, University of Campinas (UNICAMP), Campinas, SP 13083-862, Brazil
| | - Paula Speranza
- Proverde Processos Sustentáveis - Parque Científico e Tecnológico da Unicamp - Laboratório de biocombustíveis (LIB), Campinas, SP 13083-836, Brazil
| | - Ana Carla Kawazoe Sato
- Department of Food Engineering, School of Food Engineering, University of Campinas (UNICAMP), Campinas, SP 13083-862, Brazil.
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2
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Zhang J, Cheng T, Sun M, Li Y, Zhang G, Hu Z, Wang D, Guo Z, Wang Z. Application of soy protein isolate-naringenin complexes as fat replacers in low-fat cream: Based on protein conformational changes, aggregation states and interfacial adsorption behavior. Int J Biol Macromol 2024; 274:133315. [PMID: 38914390 DOI: 10.1016/j.ijbiomac.2024.133315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 05/30/2024] [Accepted: 06/19/2024] [Indexed: 06/26/2024]
Abstract
In this study, changes in the structural and functional properties of soybean protein isolate (SPI)-naringenin (NG) complexes under different amounts of naringenin treatments were explored, elucidating the effect of the complexes as fat replacers at the 15 % substitution level on the properties of low-fat cream. Finally, the correlation between the structure and function of the complex and the properties of low-fat cream was further analyzed. The addition of NG promotes the increase of SPI aggregation and particle size, and reduces the interfacial tension of the complex. Meanwhile, at the mass ratio of 48:3, NG and SPI formed a dendritic network structure suitable for stabilizing cream. The fat properties of cream indicate that low-fat creams stabilized by appropriate proportions of SPI-NG complexes displayed small and dense fat crystal network structures. In addition, low-fat cream stabilized by the SPI-NG complexes have improved whipping time, overrun, firmness, storage stability and rheological properties compared to natural SPI. It is worth noting that the overall quality of the cream stabilized by the SPI-NG complex with a mass ratio of 48:3 was almost close to that of full-fat cream. Therefore, this study promotes the potential applications of protein-polyphenol complexes as fat replacers in the food industry.
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Affiliation(s)
- Jiayu Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Tianfu Cheng
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Mengya Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Yang Li
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Guofang Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Zhaodong Hu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Daoying Wang
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zengwang Guo
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
| | - Zhongjiang Wang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Kedong Yuwang Soybean Protein Food Co., Ltd, Qiqihaer, Heilongjiang 161000, China.
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3
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Yu W, Lo JHY. The peak viscosity of decaying foam with natural drainage and coarsening. SOFT MATTER 2024; 20:4964-4971. [PMID: 38873840 DOI: 10.1039/d4sm00498a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Studying the change in foam viscosity during foam decay, a spontaneous and inevitable process, is of fundamental and practical interest across many applications, ranging from the froth in a cup of coffee to the carbon sequestration in deep geological reservoirs. However, standard rheological measurements impose several experimental constraints, such as the narrow sample confinement and the long initial setup time, interfering with the natural conditions for foam decay. Here, we perform fast and in situ measurements on decaying foam immediately after its generation in a wide column, measuring the viscosity by vibrational probes and measuring the foam structure by optical imaging. We successfully capture the changes during the transition from the drainage-dominated stage to the coarsening-dominated stage. The viscosity reaches its maximum at the crossover point, elucidating the competing effects of drainage and coarsening. The viscosity peaks magnitude and position are influenced by the gas solubility and diffusion coefficient. The phenomena are quantitatively explained by the film-shearing model. Our findings provide the foundation for enhancing foam stability and performance, improving the efficiency of foam-based applications.
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Affiliation(s)
- Wei Yu
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
| | - Jack H Y Lo
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.
- Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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4
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Xu C, Zhang Y, Sharma V. Spatiotemporal mapping of nanotopography and thickness transitions of ultrathin foam films. SOFT MATTER 2024; 20:3719-3727. [PMID: 38654634 DOI: 10.1039/d4sm00048j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Freshly formed soap films, soap bubbles, or foam films display iridescent colors due to thin film interference that changes as squeeze flow drives drainage and a progressive decrease in film thickness. Ultrathin (thickness <100 nm) freestanding films of soft matter containing micelles, particles, polyelectrolyte-surfactant complexes, or other supramolecular structures or liquid crystalline phases display drainage via stratification. A fascinating array of thickness variations and transitions, including stepwise thinning and coexistence of thick-thin flat regions, arise in micellar foam films that undergo drainage via stratification. In this tutorial, we describe the IDIOM (interferometry digital imaging optical microscopy) protocols that combine the conventional interferometry principle with digital filtration and image analysis to obtain nanometer accuracy for thickness determination while having high spatial and temporal resolution. We provide fully executable image analysis codes and algorithms for the analysis of nanotopography and summarize some of the unique insights obtained for stratified micellar foam films.
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Affiliation(s)
- Chenxian Xu
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, IL, USA.
| | - Yiran Zhang
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, IL, USA.
| | - Vivek Sharma
- Department of Chemical Engineering, University of Illinois Chicago, Chicago, IL, USA.
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5
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Enomoto K, Torisu T, Mizuguchi J, Tanoue R, Uchiyama S. Structure of Human Serum Albumin at a Foam Surface. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8774-8783. [PMID: 38587054 DOI: 10.1021/acs.jafc.3c09357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Proteins can be adsorbed on the air-water interface (AWI), and the structural changes in proteins at the AWI are closely related to the foaming properties of foods and beverages. However, how these structural changes in proteins at the AWI occur is not well understood. We developed a method for the structural assessment of proteins in the foam state using hydrogen/deuterium exchange mass spectrometry. Adsorption sites and structural changes in human serum albumin (HSA) were identified in situ at the peptide-level resolution. The N-terminus and the loop (E492-T506), which contains hydrophobic amino acids, were identified as adsorption sites. Both the structural flexibility and hydrophobicity were considered to be critical factors for the adsorption of HSA at the AWI. Structural changes in HSA were observed after more than one minute of foaming and were spread widely throughout the structure. These structural changes at the foam AWI were reversible.
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Affiliation(s)
- Kanta Enomoto
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tetsuo Torisu
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Junya Mizuguchi
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ryosuke Tanoue
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Susumu Uchiyama
- Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Exploratory Research Center on Life andLiving Systems, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
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6
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Si Y, Laidlaw FHJ, Li T, Clegg PS. Using cryo-SEM and EDS to investigate the stabilisation of oil-water interfaces in mixed aqueous-and-oil foams. SOFT MATTER 2024; 20:2212-2217. [PMID: 38379398 DOI: 10.1039/d3sm01699d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
For multi-phase soft matter systems, optical microscopy is frequently employed to distinguish the different phases. Unfortunately, optical microscopy does not succeed in all cases. Consequently, researchers sometimes require more advanced imaging techniques with superior resolution or sample penetration capabilities. One such complex system is a mixed aqueous-and-oil foam stabilised by colloidal particles, which is composed of two immiscible foams organised as the dispersed and continuous phases of an emulsion. While its morphology has been extensively studied using fluorescence confocal microscopy, not all questions have been answered. While the aqueous phase bubble interfaces are stabilised by silica particles and the oil phase bubble interfaces are stabilised by fluorinated particles, it remains to be seen how the aqueous-oil interfaces are stabilised. Hence, to gain insights into the role of the different particles at the interfaces, we employ cryogenic scanning electron microscopy (Cryo-SEM) and energy-dispersive X-ray spectroscopy (EDS). We find that the hydrophobic silica particles reside at both the aqueous-air and aqueous-oil interfaces. In contrast, the fluorinated particles, which exhibit hydrophobic and oleophobic properties simultaneously, are exclusively found at the oil-air interfaces.
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Affiliation(s)
- Yuchen Si
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.
| | - Fraser H J Laidlaw
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.
| | - Tao Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang, 325001, P. R. China
| | - Paul S Clegg
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.
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7
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Ashrafizadeh SN, Ganjizade A. Liquid foams: Properties, structures, prevailing phenomena and their applications in chemical/biochemical processes. Adv Colloid Interface Sci 2024; 325:103109. [PMID: 38367337 DOI: 10.1016/j.cis.2024.103109] [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: 08/11/2023] [Revised: 12/12/2023] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
Liquid foams are gas-liquid dispersions with flexible structures that provide high gas-liquid interfaces. This property nominates liquid foams as excellent gas-liquid contactors, systems that are widely used in the chemical and biochemical industries. However, challenges such as a lack of comprehensive understanding and foam instability have historically hindered their widespread industrial use in most applications. It was not until the recent development of nanofluidics, nanotechnology, surface science, and other related fields that the understanding, analysis, and control of foam phenomena improved. This led to the development of innovative stabilization techniques and foam-based unit operations in chemical and biochemical processes, each of which requires in-depth and exclusive reviews to fully comprehend their potential and limitations and to identify areas for further improvement and innovation. This paper reviews the foams, the common phenomena in them, the characteristics that make them suitable for chemical/biochemical engineering, reports on their current applications and recent developments in this field.
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Affiliation(s)
- Seyed Nezameddin Ashrafizadeh
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran.
| | - Ardalan Ganjizade
- Research Lab for Advanced Separation Processes, Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran
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8
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Hu X, Meng Z. An overview of edible foams in food and modern cuisine: Destabilization and stabilization mechanisms and applications. Compr Rev Food Sci Food Saf 2024; 23:e13284. [PMID: 38284578 DOI: 10.1111/1541-4337.13284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/26/2023] [Accepted: 11/30/2023] [Indexed: 01/30/2024]
Abstract
Foam, as a structured multi-scale colloidal system, is becoming increasingly popular in food because it gives a series of unique textures, structures, and appearances to foods while maintaining clean labels. Recently, developing green and healthy food-grade foaming agents, improving the stability of edible foams, and exploring the application of foam structures and new foaming agents have been the focus of foam systems. This review comprehensively introduces the destabilization mechanisms of foam and summarizes the main mechanisms controlling the foam stability and progress of different food-grade materials (small-molecular surfactants, biopolymers, and edible Pickering particles). Furthermore, the classic foam systems in food and modern cuisine, their applications, developments, and challenges are also underlined. Natural small-molecular surfactants, novel plant/microalgae proteins, and edible colloidal particles are the research hotspots of high-efficiency food-grade foam stabilizers. They have apparent differences in foam stability mechanisms, and each exerts its advantages. However, the development of foam stabilizers remains to be enriched compared with emulsions. Food foams are diverse and widely used, bringing unique enjoyment and benefit to consumers regarding sense, innovation, and health attributes. In addition to industrial inflatable foods, the foam foods in molecular gastronomy are also worthy of exploration. Moreover, edible foams may have greater potential in structured food design, 3D/4D printing, and controlled flavor release in the future. This review will provide a reference for the efficient development of functional inflatable foods and the advancement of foam technologies in modern cuisine.
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Affiliation(s)
- Xiangfang Hu
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
| | - Zong Meng
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, People's Republic of China
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9
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Hoch H, Pingel M, Voigt D, Wyss U, Gorb S. Adhesive properties of Aphrophoridae spittlebug foam. J R Soc Interface 2024; 21:20230521. [PMID: 38196374 PMCID: PMC10777165 DOI: 10.1098/rsif.2023.0521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/11/2023] [Indexed: 01/11/2024] Open
Abstract
Aphrophora alni spittlebug nymphs produce a wet foam from anal excrement fluid, covering and protecting themselves against numerous impacts. Foam fluid contact angles on normal (26°) and silanized glass (37°) suggest that the foam wets various substrates, including plant and arthropod surfaces. The pull-off force depends on the hydration state and is higher the more dry the fluid. Because the foam desiccates as fast as water, predators once captured struggle to free from drying foam, becoming stickier. The present study confirms that adhesion is one of the numerous foam characteristics resulting in multifunctional effects, which promote spittlebugs' survival and render the foam a smart, biocompatible material of biological, biomimetic and biomedical interest. The sustainable 'reuse' of large amounts of excrement for foam production and protection of the thin nymph integument suggests energetic and evolutionary advantages. Probably, that is why foam nests have evolved in different groups of organisms, such as spittlebugs, frogs and fish.
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Affiliation(s)
- Hannelore Hoch
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, 10115 Berlin, Germany
| | - Martin Pingel
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, 10115 Berlin, Germany
| | - Dagmar Voigt
- Botany, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Urs Wyss
- Entofilm, Dahlmannstraße 2a, 24103 Kiel, Germany
| | - Stanislav Gorb
- Department of Functional Morphology and Biomechanics, Zoological Institute, Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1–9, 24098 Kiel, Germany
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10
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Das R, Hoysall C, Rao L. Unveiling the origin, fate, and remedial approaches for surfactants in sewage-fed foaming urban (Bellandur) Lake. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 339:122773. [PMID: 37858701 DOI: 10.1016/j.envpol.2023.122773] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Foam formation in surface water bodies has become a global phenomenon, but the solutions to this crisis are often insufficient. Foam formation in water bodies is attributed to surfactants and requires a comprehensive assessment of various sources of surfactants to evolve mitigation strategies. The study is focused on thoroughly analyzing surfactants in the water and foam fractions of a large waterbody in Bangalore (India) spanning around 1000 acres (400 ha), which has been foaming for two decades. Results revealed that the key surfactants originate predominantly from anthropogenic sources with a small component emerging from naturogenic sources. Anthropogenic surfactants were found to be predominant (96.5%), with linear alkylbenzene sulphonates (LAS) of various C-chain lengths 12-20 being the most prevalent. Naturogenic surfactants derived from bacterial genera Pseudomonas exhibited significant microbial diversity, accounting for over 19% of total bacterial population in both the water and organic sediments of the lake. Modelling studies and field validation efforts were carried out to understand the fate of LAS in the foaming lake. The results indicated that these surfactants donot degrade under the prevailing conditions and timeframe as wastewater traverses through the lake, and their presence was also observed in the organic sludge sediment. Modeling the underlying processes revealed that a minimum dissolved oxygen (DO) concentration of 3.5 mg/l enables the degradation of over 90% of surfactants within the residence time of 8-10 days in Lake. Additionally, the process of desludging could contribute to an additional increase to the overall efficiency of surfactant removal, simultaneously removing legacy sorbed surfactants to sediments.
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Affiliation(s)
- Reshmi Das
- Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India.
| | - Chanakya Hoysall
- Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India
| | - Lakshminarayana Rao
- Centre for Sustainable Technologies, Indian Institute of Science, Bangalore, India
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11
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Yu W, Lo JHY, Kanj MY. Characterizing Aqueous Foams by In Situ Viscosity Measurement in a Foam Column. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14711-14717. [PMID: 37792909 DOI: 10.1021/acs.langmuir.3c02093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
Foam characterization is essential in many applications of foams, such as cleaning, food processing, cosmetics, and oil production, due to these applications' diversified requirements. The standard characterization method, the foam column test, cannot provide sufficient information for in-depth studies. Hence, there have been many studies that incorporated different characterization methods into a standard test. It should be enlightening and feasible to measure the foam viscosity, which is both of practical and fundamental interest during the foam column test, but it has never been done before. Here, we demonstrate a method to characterize aqueous foams and their aging behaviors with the simultaneous measurement of foam viscosity and foam height. Using a vibration viscometer, we integrate foam column experiments with in situ foam viscosity measurements. We studied the correlation among the foam structure, foam height, and foam viscosity during the foam decay process. We found a drastic decrease in foam viscosity in the early foam decay, while the foam height remained unchanged, which is explained by coarsening. This method is much more sensitive and time-efficient than conventional foam-height-based methods by comparing the half-life. This method successfully characterizes the stability of foams made of various combinations of surfactants and gases.
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Affiliation(s)
- Wei Yu
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Jack Hau Yung Lo
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Mazen Yousef Kanj
- Center for Integrative Petroleum Research (CIPR), College of Petroleum Engineering & Geosciences, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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12
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Boulogne F, Rio E, Restagno F. Evaporation-Induced Temperature Gradient in a Foam Column. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14256-14262. [PMID: 37774314 DOI: 10.1021/acs.langmuir.3c01463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
Various parameters affect foam stability: surface and bulk rheology of the solution, gravitational drainage, mechanical vibrations, bubble gas composition, and also evaporation. Evaporation is often considered through the prism of liquid loss but also induces a cooling effect due to the enthalpy of vaporization. In this study, we combine a theoretical and experimental approach to explore the temperature field in a foam column evaporating from the top. We show that a measurable temperature profile exists in this geometry, with temperatures at the interface lower than the environmental temperature by a few degrees. We demonstrate that the temperature profile is the result of a balance between the enthalpy of vaporization and heat fluxes originating from the thermal conduction of foam and air and thermal radiation. For small foam thicknesses compared to the radius, we found that the temperature gradient is established over the foam thickness, while for large aspect ratios, the gradient spans over a length scale comparable to the tube radius.
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Affiliation(s)
- François Boulogne
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Emmanuelle Rio
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
| | - Frédéric Restagno
- Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France
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13
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Timilsena YP, Phosanam A, Stockmann R. Perspectives on Saponins: Food Functionality and Applications. Int J Mol Sci 2023; 24:13538. [PMID: 37686341 PMCID: PMC10487995 DOI: 10.3390/ijms241713538] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023] Open
Abstract
Saponins are a diverse group of naturally occurring plant secondary metabolites present in a wide range of foods ranging from grains, pulses, and green leaves to sea creatures. They consist of a hydrophilic sugar moiety linked to a lipophilic aglycone, resulting in an amphiphilic nature and unique functional properties. Their amphiphilic structures enable saponins to exhibit surface-active properties, resulting in stable foams and complexes with various molecules. In the context of food applications, saponins are utilized as natural emulsifiers, foaming agents, and stabilizers. They contribute to texture and stability in food products and have potential health benefits, including cholesterol-lowering and anticancer effects. Saponins possess additional bioactivities that make them valuable in the pharmaceutical industry as anti-inflammatory, antimicrobial, antiviral, and antiparasitic agents to name a few. Saponins can demonstrate cytotoxic activity against cancer cell lines and can also act as adjuvants, enhancing the immune response to vaccines. Their ability to form stable complexes with drugs further expands their potential in drug delivery systems. However, challenges such as bitterness, cytotoxicity, and instability under certain conditions need to be addressed for effective utilization of saponins in foods and related applications. In this paper, we have reviewed the chemistry, functionality, and application aspects of saponins from various plant sources, and have summarized the regulatory aspects of the food-based application of quillaja saponins. Further research to explore the full potential of saponins in improving food quality and human health has been suggested. It is expected that this article will be a useful resource for researchers in food, feed, pharmaceuticals, and material science.
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Affiliation(s)
- Yakindra Prasad Timilsena
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, VIC 3030, Australia;
| | - Arissara Phosanam
- Department of Food Technology and Nutrition, Faculty of Natural Resources and Agro-Industry, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakhon Nakon 47000, Thailand;
| | - Regine Stockmann
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, VIC 3030, Australia;
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14
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Fu C, Lin H, Nere RN, Gharbi MA. Effect of airflow rate and drainage on the properties of 2D smectic liquid crystal foams. SOFT MATTER 2023; 19:6298-6304. [PMID: 37555339 DOI: 10.1039/d3sm00684k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
As a two-phase system, foams are widely applied in the industry and exist ubiquitously in our daily lives. For this reason, studying them and investigating the parameters that affect their properties is crucial for the development of new and improved foam-based products. In this paper, we create 2D foam using an ordered fluid, the smectic liquid crystal (LC), and discuss the experimental parameters that affect their fabrication, including temperature and confining conditions. Then, we examine the influence of the injected airflow rate and drainage on their structure, size, liquid fraction, and stability. Finally, we compare their behavior to that of low-viscosity liquid foams and discuss the difference between them. Our findings indicate that surface tension is the dominant parameter in LC foam systems. Despite the strong elasticity of LCs, surface tension plays a crucial role in determining the properties of elastic foams. These results provide valuable insights that can be applied to different industrial applications. For instance, they may find relevance in the fields of cosmetics, thermal insulation, oil recovery, and sensing, where the fabrication of foams with high-viscosity fluids is required.
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Affiliation(s)
- Changshuo Fu
- Department of Physics, University of Massachusetts, Boston, MA 02125, USA.
| | - Hongjie Lin
- Department of Physics, University of Massachusetts, Boston, MA 02125, USA.
| | - Rachel N Nere
- Department of Physics, University of Massachusetts, Boston, MA 02125, USA.
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15
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Si Y, Royer JR, Li T, Clegg PS. Mixed aqueous-and-oil foams in bulk. J Colloid Interface Sci 2023; 646:671-678. [PMID: 37224681 DOI: 10.1016/j.jcis.2023.05.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/30/2023] [Accepted: 05/10/2023] [Indexed: 05/26/2023]
Abstract
HYPOTHESIS Because particle-stabilised foams are extremely stable and have a yield stress, a particle-stabilised aqueous foam and a particle-stabilised oil foam can be mixed together to give a stable composite foam which brings together two immiscible liquids. EXPERIMENTS We have developed a mixed foam system comprised of an olive oil foam with bubbles stabilised using partially fluorinated particles and an aqueous foam with bubbles stabilised using hydrophobic silica particles. The aqueous phase is a mixture of water and propylene glycol. We have studied this system using bulk observations, confocal microscopy and rheology as we vary the proportions of the two foams, the silica particles and the propylene glycol, and the sample age. FINDINGS The composite foam resembles an emulsion of one foam within another and is stable for a week or more. The structure and flow properties depend on the proportions of the two phases and the quantities of both silica particles and propylene glycol. Inversion between water-in-oil and oil-in-water is observed, where both phases are foams, driven both by silica wettability and by adding increasing quantities of the dispersed foam. Composites formed at the inversion point are the least stable, showing significant phase separation in less than one week.
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Affiliation(s)
- Yuchen Si
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK
| | - John R Royer
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK
| | - Tao Li
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, PR China
| | - Paul S Clegg
- School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.
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16
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Kim DK, Ananth R. Spontaneous aqueous foaming with fluorosurfactants from a hydrocarbon liquid at ambient conditions. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Liang M, Zhao X, Wang J, Feng Y. A Comparative Study on CO2-Switchable Foams Stabilized by C22- or C18-Tailed Tertiary Amines. Molecules 2023; 28:molecules28062567. [PMID: 36985539 PMCID: PMC10052787 DOI: 10.3390/molecules28062567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
The CO2 aqueous foams stabilized by bioresource-derived ultra-long chain surfactants have demonstrated considerable promising application potential owing to their remarkable longevity. Nevertheless, existing research is still inadequate to establish the relationships among surfactant architecture, environmental factors, and foam properties. Herein, two cases of ultra-long chain tertiary amines with different tail lengths, N-erucamidopropyl-N,N-dimethylamine (UC22AMPM) and N-oleicamidopropyl-N,N-dimethylamine (UC18AMPM), were employed to fabricate CO2 foams. The effect of temperature, pressure and salinity on the properties of two foam systems (i.e., foamability and foam stability) was compared using a high-temperature, high-pressure visualization foam meter. The continuous phase viscosity and liquid content for both samples were characterized using rheometry and FoamScan. The results showed that the increased concentrations or pressure enhanced the properties of both foam samples, but the increased scope for UC22AMPM was more pronounced. By contrast, the foam stability for both cases was impaired with increasing salinity or temperature, but the UC18AMPM sample is more sensitive to temperature and salinity, indicating the salt and temperature resistance of UC18AMPM-CO2 foams is weaker than those of the UC22AMPM counterpart. These differences are associated with the longer hydrophobic chain of UC22AMPM, which imparts a higher viscosity and lower surface tension to foams, resisting the adverse effects of temperature and salinity.
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Affiliation(s)
- Meiqing Liang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China;
| | - Xuezhi Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China;
| | - Ji Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China;
- Tianfu Yongxing Laboratory, Chengdu 610217, China
- Correspondence: (J.W.); (Y.F.)
| | - Yujun Feng
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China;
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China;
- Correspondence: (J.W.); (Y.F.)
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18
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Pickering foams stabilized by protein-based particles: A review of characterization, stabilization, and application. Trends Food Sci Technol 2023. [DOI: 10.1016/j.tifs.2023.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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19
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Braun L, von Klitzing R. When Bulk Matters: Disentanglement of the Role of Polyelectrolyte/Surfactant Complexes at Surfaces and in the Bulk of Foam Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:111-118. [PMID: 36525629 DOI: 10.1021/acs.langmuir.2c02260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Foam films display exciting systems as on one hand they dictate the performance of macroscopic foams and on the other hand they allow studies of surface forces. With regard to surface forces, we attempt to disentangle the effect of the foam film surfaces and the foam film bulk. For that, we study the influence of salt (LiBr) on foam films formed by mixtures of oppositely charged polyelectrolyte and surfactant: anionic monosulfonated polyphenylene sulfone (sPSO2-220) and cationic tetradecyltrimethylammonium bromide (C14TAB). Adding a small amount of salt (≤10-3 M) decreases the foam film stability due to a weakened electrostatic net repulsion. In contrast, a large amount of salt (10-2 M) unexpectedly increases the foam film stability. Disjoining pressure isotherms reveal that the increased stability is due to an additional steric stabilization, which is attributed to sPSO2-220/C14TAB complexes in the film bulk. These bulk complexes also contribute to the measured apparent surface potential between the two air/water interfaces. We find, for the first time, the formation of Newton black films for mixtures of anionic polyelectrolytes and cationic surfactants.
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Affiliation(s)
- Larissa Braun
- Soft Matter at Interfaces, Department of Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289Darmstadt, Germany
| | - Regine von Klitzing
- Soft Matter at Interfaces, Department of Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289Darmstadt, Germany
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20
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Mu M, Shu Q, Xu Z, Zhang X, Liu H, Zhao S, Zhang Y. pH-responsive, salt-resistant, and highly stable foam based on a silicone-containing dynamic imine surfactant. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Sun L, Liu L, Wu M, Wang D, Shen R, Zhao H, Lu J, Yao J. Nanocellulose interface enhanced all-cellulose foam with controllable strength via a facile liquid phase exchange route. Carbohydr Polym 2023; 299:120192. [PMID: 36876806 DOI: 10.1016/j.carbpol.2022.120192] [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: 07/12/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 11/09/2022]
Abstract
The development of sustainable, biodegradable, non-toxic biomass foams with outstanding physical properties to replace traditional petroleum-based foams is urgent. In this work, we proposed a simple, efficient, and scalable approach to fabricate nanocellulose (NC) interface enhanced all-cellulose foam through ethanol liquid phase exchange and subsequent ambient drying. In this process, NCs served as reinforcer and binder were integrated with pulp fiber to improve cellulose interfibrillar bonding and interface adhesion between NCs and pulp microfibrils. The resultant all-cellulose foam displayed stable microcellular structure (porosity of 91.7-94.5 %), low apparent density (0.08-0.12 g/cm3), and high compression modulus (0.49-2.96 MPa) by regulating the content and size of NCs. Further, the strengthening mechanism of the structure and property of all-cellulose foam were investigated in detail. This proposed process enabled ambient drying, and is simple and feasible for low-cost, practicable, and scalable production of biodegradable, green bio-based foam without special apparatuses and other chemicals.
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Affiliation(s)
- Longfei Sun
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing 312000, China
| | - Lin Liu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing 312000, China.
| | - Mingbang Wu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Dengfeng Wang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Rongsheng Shen
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hanfei Zhao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China; Zhejiang Provincial Innovation Center of Advanced Textile Technology, Shaoxing 312000, China
| | - Jing Lu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Juming Yao
- School of Materials Science and Chemical Engineering, Ningbo University, 818 Fenghua Road, Ningbo 315211, China.
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22
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Lai N, Zhang C, Wang J, Tang L, Ye Z. Effects of Different Gases on the Molecular Behavior of Alkyl Glycosides at Gas/Liquid Interface and Foam Stability. ChemistrySelect 2022. [DOI: 10.1002/slct.202203090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Nanjun Lai
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province Southwest Petroleum University Chengdu 610500 People's Republic of China
- The key laboratory of well stability and fluid & rock mechanics in Oil and gas reservoir of Shaanxi Province Xi'an Shiyou University Xi'an 710065 People's Republic of China
| | - Chengbin Zhang
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 People's Republic of China
| | - Junqi Wang
- The key laboratory of well stability and fluid & rock mechanics in Oil and gas reservoir of Shaanxi Province Xi'an Shiyou University Xi'an 710065 People's Republic of China
| | - Lei Tang
- Sichuan Ruidong Technology Co., LTD People's Republic of China
| | - Zhongbin Ye
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province Southwest Petroleum University Chengdu 610500 People's Republic of China
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23
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Rabajczyk A, Zielecka M, Gniazdowska J. Application of Nanotechnology in Extinguishing Agents. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8876. [PMID: 36556682 PMCID: PMC9783549 DOI: 10.3390/ma15248876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/04/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Extinguishing agents are a very important tool in the field of security, both in terms of private and social aspects. Depending on the type of burning substance and place of fire, appropriately prepared and developed solutions should be used. We can distinguish, among others, materials, powders or foaming agents. Modifications introduced into them, including ones based on the achievements in the field of nanotechnology, can improve their safety of use and extend their service life. Such amendments also reduce the costs of production and neutralization of the area after a fire, and increase the fire extinguishing effectiveness. The introduction of nanoparticles allows, e.g., shortening of the fire extinguishing time, reduction of the risk of smoke emission and the toxic substances contained in it, and an increase in the specific surface of particles and thus increasing the sorption of pollutants. The elaborations use metal nanoparticles, e.g., NP-Ag, metal oxides such as NP-SiO2, as well as particles of substances already present in extinguishing agents but treated and reduced to nanosize. It should be noted, however, that all changes must lead to obtaining a tool that meets the relevant legal requirements and has appropriate approvals.
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24
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Lamolinairie J, Dollet B, Bridot JL, Bauduin P, Diat O, Chiappisi L. Probing foams from the nanometer to the millimeter scale by coupling small-angle neutron scattering, imaging, and electrical conductivity measurements. SOFT MATTER 2022; 18:8733-8747. [PMID: 36341841 DOI: 10.1039/d2sm01252a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Liquid foams are multi-scale structures whose structural characterization requires the combination of very different techniques. This inherently complex task is made more difficult by the fact that foams are also intrinsically unstable systems and that their properties are highly dependent on the production protocol and sample container. To tackle these issues, a new device has been developed that enables the simultaneous time-resolved investigation of foams by small-angle neutron scattering (SANS), electrical conductivity, and bubbles imaging. This device allows the characterization of the foam and its aging from nanometer up to centimeter scale in a single experiment. A specific SANS model was developed to quantitatively adjust the scattering intensity from the dry foam. Structural features such as the liquid fraction, specific surface area of the Plateau borders and inter-bubble films, and thin film thickness were deduced from this analysis, and some of these values were compared with values extracted from the other applied techniques. This approach has been applied to a surfactant-stabilized liquid foam under free drainage and the underlying foam destabilization mechanisms were discussed with unprecedented detail. For example, the information extracted from the image analysis and SANS data allows for the first time to determine the disjoining pressure vs. thickness isotherm in a real, draining foam.
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Affiliation(s)
- Julien Lamolinairie
- Institut Max von Laue - Paul Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France.
| | - Benjamin Dollet
- Université Grenoble Alpes, CNRS, LIPhy, 38000 Grenoble, France
| | | | - Pierre Bauduin
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | - Olivier Diat
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | - Leonardo Chiappisi
- Institut Max von Laue - Paul Langevin (ILL), 71 Avenue des Martyrs, 38042 Grenoble, France.
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25
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Song N, Li Z, Wang S, Xiong Y. Preparation and Application of Foaming Agent Based on the Compound System of Short-Chain Fluorocarbon and Soybean Residue Protein. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7384. [PMID: 36295450 PMCID: PMC9609923 DOI: 10.3390/ma15207384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
This study provides a new idea for the design of an advanced foaming agent with soybean residue protein (SRP) as a potential protein source. In order to achieve the most effective foaming performance, we employed the novel approach of response surface methodology (RSM) to improve important process parameters in a hot-alkali experiment. The experimental results showed that the optimum reaction parameters of pH and temperature were pH 10.2 and 50.5 °C, respectively, which, when continued for 3 h, led to the highest foaming property of the SRP foaming agent (486 mL). Based on the scheme, we also designed an experiment whereby we incorporated 1.0g/L FS-50 into the SRP foaming agent (SRP-50) to achieve higher foaming capacity compared with the commercial foaming agent. This foaming agent was cheaper than commercial vegetable protein foaming agents (12 USD/L) at 0.258 USD/L. Meanwhile, the properties of foam concrete prepared using SRP-50 were studied in comparison with a commercial vegetable protein foaming agent (PS). The results demonstrated that the foam prepared using SRP-50 had better stability, and the displacement of the foam decreased by 10% after 10 min. During the curing period, the foam concrete possesseda compressive strength of 5.72 MPa after 28 days, which was an increase from 2.95 MPa before. The aperture of the foam ranged from 100 to 500 μm with the percentage increasing up to 71.5%, which indicated narrower pore-size distribution and finer pore size. In addition, the shrinkage of the foam concrete was also improved. These findings not only achieve the utilization of waste but also provide a new source for protein foaming agents.
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Affiliation(s)
- Ning Song
- Agricultural Engineering, School of Agricultural Engineering and Food Science, Shandong Research Center of Engineering and Technology for Clean Energy, Shandong University of Technology, Zibo 255000, China
| | - Zhihe Li
- Agricultural Engineering, School of Agricultural Engineering and Food Science, Shandong Research Center of Engineering and Technology for Clean Energy, Shandong University of Technology, Zibo 255000, China
| | - Shaoqing Wang
- Agricultural Engineering, School of Agricultural Engineering and Food Science, Shandong Research Center of Engineering and Technology for Clean Energy, Shandong University of Technology, Zibo 255000, China
| | - Yuanliang Xiong
- Structural Engineering, School of Civil Engineering, Yantai University, Yantai 264000, China
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26
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Ritacco HA. Polyelectrolyte/Surfactant Mixtures: A Pathway to Smart Foams. ACS OMEGA 2022; 7:36117-36136. [PMID: 36278099 PMCID: PMC9583308 DOI: 10.1021/acsomega.2c05739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 09/26/2022] [Indexed: 05/10/2023]
Abstract
This review deals with liquid foams stabilized by polyelectrolyte/surfactant (PS) complexes in aqueous solution. It briefly reviews all the important aspects of foam physics at several scales, from interfaces to macroscopic foams, needed to understand the basics of these complex systems, focusing on those particular aspects of foams stabilized by PS mixtures. The final section includes a few examples of smart foams based on PS complexes that have been reported recently in the literature. These PS complexes open an opportunity to develop new intelligent dispersed materials with potential in many fields, such as oil industry, environmental remediation, and pharmaceutical industry, among others. However, there is much work to be done to understand the mechanism involved in the stabilization of foams with PS complexes. Understanding those underlying mechanisms is vital to successfully formulate smart systems. This review is written in the hope of stimulating further work in the physics of PS foams and, particularly, in the search for responsive foams based on polymer-surfactant mixtures.
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27
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Taki K, Menale M, Pisante G, Di Maio E. A design tool for core‐back timing in foam injection molding. J Appl Polym Sci 2022. [DOI: 10.1002/app.53121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kentaro Taki
- School of Mechanical Engineering, College of Science and Engineering Kanazawa University Kanazawa Japan
| | - Marco Menale
- Department of Mathematics and Physics University of Campania "Luigi Vanvitelli" Caserta Italy
| | - Giovanni Pisante
- Department of Mathematics and Physics University of Campania "Luigi Vanvitelli" Caserta Italy
| | - Ernesto Di Maio
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale University of Naples Federico II Naples Italy
- Foamlab University of Naples Federico II Naples Italy
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28
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Gas marbles: ultra-long-lasting and ultra-robust bubbles formed by particle stabilization. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2180-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Wang J, Luo X, Rogers S, Li P, Feng Y. Stabilization of CO2 aqueous foams at high temperature and high pressure: Small-angle neutron scattering and rheological studies. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Xie D, Jiang Y, Song B, Yang X. Switchable Pickering foams stabilized by mesoporous nanosilica hydrophobized in situ with a Gemini surfactant. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Zhao M, Zhang Y, Yang Q, Li T, Yuan C, Li J, Liang L, Nishinari K, Cui B. Foam properties and interfacial behavior of the heteroprotein complex of type-A gelatin/sodium caseinate. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Fan X, Guan X, Zhang M, Liu Y, Li Y. Aqueous foam synergistically stabilized by the composite of lignin nanoparticles and surfactant. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Dai T, McClements DJ, Hu T, Chen J, He X, Liu C, Sheng J, Sun J. Improving foam performance using colloidal protein-polyphenol complexes: Lactoferrin and tannic acid. Food Chem 2022; 377:131950. [PMID: 34998155 DOI: 10.1016/j.foodchem.2021.131950] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 12/22/2021] [Accepted: 12/22/2021] [Indexed: 11/30/2022]
Abstract
In this study, colloidal complexes were prepared from bovine lactoferrin (BLF) and tannic acid (TA) and then their ability to form and stabilize foams was characterized. The molecular interactions between BLF and TA were studied using fluorescence and molecular docking analysis, which suggested that hydrophobic forces were primarily involved in holding the complexes together. The production of colloidal BLF-TA complexes was supported by increases in turbidity and mean particle diameter, quenching of intrinsic fluorescence, decrease in surface hydrophobicity, and change in conformation. When used alone, BLF exhibited good foam formation but poor foam stability properties. In contrast, BLF-TA complexes exhibited good foam stability but poor foamability properties. The change in foaming properties of the proteins was closely related to their interactions with the polyphenols. These findings may be useful for the development of novel functional ingredients to construct food foams with good physicochemical and nutritional attributes.
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Affiliation(s)
- Taotao Dai
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China; Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Nanning, Guangxi, 530007, China; State Key Laboratory of Food Science and Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, China
| | | | - Ting Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, China
| | - Jun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, China
| | - Xuemei He
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China.
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, No. 235 Nanjing East Road, Nanchang 330047, China
| | - Jinfeng Sheng
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Jian Sun
- Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, China; Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Nanning, Guangxi, 530007, China.
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Zhang H, Xi H, Lin X, Liang L, Li Z, Pan X, Luo X. Biodegradable antifreeze foam stabilized by lauryl alcohol for radioactive surface decontamination. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08349-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Leander P, Stathis G, Casal-Dujat L, Boman K, Adnerhill I, Marsal J, Böök O, Fork T. A novel food-based negative oral contrast agent compared with two conventional oral contrast agents in abdominal CT: a three-arm parallel blinded randomised controlled single-centre trial. Eur Radiol Exp 2022; 6:15. [PMID: 35378633 PMCID: PMC8980139 DOI: 10.1186/s41747-022-00267-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 02/01/2022] [Indexed: 11/24/2022] Open
Abstract
Background A negative oral contrast agent (OCA) has been long sought for, to better delineate the bowel and visualise surrounding structures. Lumentin® 44 (L44) is a new OCA formulated to fill the entire small bowel. The aim of this study was to compare L44 with positive and neutral conventional OCA in abdominal computed tomography (CT). Methods Forty-five oncologic patients were randomised to receive either L44 or one of the two comparators (MoviPrep® or diluted Omnipaque®). Abdominal CT examinations with intravenous contrast agent were acquired according to standard protocols. The studies were read independently by two senior radiologists. Results The mean intraluminal Hounsfield units (HU)-values of regions-of-interest (ROIs) for each subsegment of small bowel and treatment group were -404.0 HU for L44, 166.1 HU for Omnipaque®, and 16.7 HU for MoviPrep® (L44 versus Omnipaque, p < 0.001: L44 versus MoviPrep p < 0.001; Omnipaque versus MoviPrep, p = 0.003). Adverse events, only mild, using L44 were numerically fewer than for using conventional oral contrast agents. Visualisation of abdominal structures beyond the small bowel was similar to the comparators. Conclusions L44 is a negative OCA with luminal radiodensity at approximately -400 HU creating a unique small bowel appearance on CT scans. The high bowel wall-to-lumen contrast may enable improved visualisation in a range of pathologic conditions. L44 showed a good safety profile and was well accepted by patients studied. Trial registration EudraCT (2017-002368-42) and in ClinicalTrials.gov (NCT03326518). Supplementary Information The online version contains supplementary material available at 10.1186/s41747-022-00267-z.
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Whey protein microgels for stabilisation of foams. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Organic pollutant collection and electrochemical CO2 reduction promoted by pH-Responsive surfactants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Pickering foams and parameters influencing their characteristics. Adv Colloid Interface Sci 2022; 301:102606. [PMID: 35182930 DOI: 10.1016/j.cis.2022.102606] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/20/2022] [Accepted: 01/26/2022] [Indexed: 11/21/2022]
Abstract
Pickering foams are available in many applications and have been continually gaining interest in the last two decades. Pickering foams are multifaceted, and their characteristics are highly dependent on many factors, such as particle size, charge, hydrophobicity and concentration as well as the charge and concentration of surfactants and salts available in the system. A literature review of these individual studies at first might seem confusing and somewhat contradictory, particularly in multi-component systems with particles and surfactants with different charges in the presence of salts. This paper provides a comprehensive overview of particle-stabilized foams, also known as Pickering foams and froths. Underlying mechanisms of foam stabilization by particles with different morphology, surface chemistry, size and type are reviewed and clarified. This paper also outlines the role of salts and different factors such as pH, temperature and gas type on Pickering foams. Further, we highlight recent developments in Pickering foams in different applications such as food, mining, oil and gas, and wastewater treatment industries, where Pickering foams are abundant. We conclude this overview by presenting important research avenues based on the gaps identified here. The focus of this review is limited to Pickering foams of surfactants with added salts and does not include studies on polymers, proteins, or other macromolecules.
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Xia B, Wang Y, Jiang J, Zhang X, Li T, Ma P, Chen M, Dong W. Effects of dicumyl peroxide on cross‐linking pure poly(butylene succinate) foaming materials for high expansion and high mechanical strength. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bihua Xia
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Yang Wang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Jie Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Xuhui Zhang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Ting Li
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Piming Ma
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Mingqing Chen
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
| | - Weifu Dong
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi China
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Cojocaru R, Mannix O, Capron M, Miller CG, Jouneau PH, Gallet B, Falconet D, Pacureanu A, Stukins S. A biological nanofoam: The wall of coniferous bisaccate pollen. SCIENCE ADVANCES 2022; 8:eabd0892. [PMID: 35138906 PMCID: PMC8827650 DOI: 10.1126/sciadv.abd0892] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 12/15/2021] [Indexed: 06/01/2023]
Abstract
The outer layer of the pollen grain, the exine, plays a key role in the survival of terrestrial plant life. However, the exine structure in different groups of plants remains enigmatic. Here, modern and fossil coniferous bisaccate pollen were examined to investigate the detailed three-dimensional structure and properties of the pollen wall. X-ray nanotomography and volume electron microscopy are used to provide high-resolution imagery, revealing a solid nanofoam structure. Atomic force microscopy measurements were used to compare the pollen wall with other natural and synthetic foams and to demonstrate that the mechanical properties of the wall in this type of pollen are retained for millions of years in fossil specimens. The microscopic structure of this robust biological material has potential applications in materials sciences and also contributes to our understanding of the evolutionary success of conifers and other plants over geological time.
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Affiliation(s)
- Ruxandra Cojocaru
- ESRF—The European Synchrotron, 71 Avenue des Martyrs, Grenoble, France
| | - Oonagh Mannix
- ESRF—The European Synchrotron, 71 Avenue des Martyrs, Grenoble, France
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Marie Capron
- ESRF—The European Synchrotron, 71 Avenue des Martyrs, Grenoble, France
- Partnership for Soft Condensed Matter, ESRF–The European Synchrotron, 71 Avenue des Martyrs, Grenoble, France
| | - C. Giles Miller
- Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | | | - Benoit Gallet
- Univ. Grenoble Alpes, CNRS, CEA, IRIG-IBS, Grenoble, France
| | - Denis Falconet
- Univ. Grenoble Alpes, CNRS, CEA, INRAE, IRIG-LPCV, Grenoble, France
| | | | - Stephen Stukins
- Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
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Karnakov P, Litvinov S, Koumoutsakos P. Computing foaming flows across scales: From breaking waves to microfluidics. SCIENCE ADVANCES 2022; 8:eabm0590. [PMID: 35108038 PMCID: PMC8809540 DOI: 10.1126/sciadv.abm0590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
Crashing ocean waves, cappuccino froths, and microfluidic bubble crystals are examples of foamy flows. Foamy flows are critical in numerous natural and industrial processes and remain notoriously difficult to compute as they involve coupled, multiscale physical processes. Computations need to resolve the interactions of the bubbles separated by stable thin liquid films. We present the multilayer volume-of-fluid method (Multi-VOF) that advances the state of the art in simulation capabilities of foamy flows. The method introduces a scheme to handle multiple bubbles that do not coalesce. Multi-VOF is verified and validated with experimental results and complemented with open-source software. We demonstrate capturing of crystalline structures of bubbles in realistic microfluidics devices and foamy flows involving tens of thousands of bubbles in a waterfall. The present technique extends the classical volume-of-fluid methodology and allows for large-scale predictive simulations of flows with multiple interfaces.
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Affiliation(s)
- Petr Karnakov
- Computational Science and Engineering Laboratory, ETH Zurich, Clausiusstrasse 33, Zurich CH-8092, Switzerland
- Computational Science and Engineering Laboratory, School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA 02138, USA
| | - Sergey Litvinov
- Computational Science and Engineering Laboratory, ETH Zurich, Clausiusstrasse 33, Zurich CH-8092, Switzerland
| | - Petros Koumoutsakos
- Computational Science and Engineering Laboratory, ETH Zurich, Clausiusstrasse 33, Zurich CH-8092, Switzerland
- Computational Science and Engineering Laboratory, School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street, Cambridge, MA 02138, USA
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42
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Mardani M, Yeganehzad S, Niazmand R. Structure-function relationship of licorice (Glycyrrhiza glabra) root extract-xanthan/guar gum mixture in a high sugar content system. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1056-1065. [PMID: 34312850 DOI: 10.1002/jsfa.11441] [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: 04/24/2021] [Revised: 07/04/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Foam-gels are one of the most important multicomponent-model systems in aerated confectionery, and an investigation of their microstructure is desirable. In this research, the structure-function relationship of xanthan gum/guar gum (XG/GG) and licorice (Glycyrrhiza glabra) root extract powder (LEP) was investigated in a high-sugar medium. Foam-gel systems were prepared at 4:10% to 8:20% ratios of LEP to biopolymer. RESULTS The results show that increasing the LEP content reduced both the melting point and enthalpy, probably due to higher overrun and weaker junctions. Boosting the XG/GG ratio led the enhancement of mechanical properties, whereas increasing the LEP concentration weakened all textural parameters, which could be due to the poor structure of the network in the presence of the foaming agent, increased moisture content and overrun. In the whipped mixture samples containing 10 g kg-1 XG/GG, higher foaming capacity was observed. By increasing the level of biopolymers, smaller and more uniform air cells were formed according to a scanning electron microscopical study. At higher concentration of LEP, smaller bubbles and increased porosity were seen, which could be attributed to the availability of surfactant in the interfacial layer. CONCLUSION Maximum structural strength was achieved at a 4:20 ratio of LEP to XG/GG. In rheological experiments, pseudoplastic behavior was seen in all samples. Generally, this model system can be simulated for other herbal extracts containing natural surfactants such as saponins. Achieving a more detailed understanding of these structures and their interactions could help in formulating novel food products. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Marieh Mardani
- Department of Food Processing, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
| | - Samira Yeganehzad
- Department of Food Processing, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
| | - Razieh Niazmand
- Department of Food Chemistry, Research Institute of Food Science and Technology (RIFST), Mashhad, Iran
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Garrido PF, Bastos M, Velázquez-Campoy A, Amigo A, Dumas P, Piñeiro Á. Unsupervised bubble calorimetry analysis: Surface tension from isothermal titration calorimetry. J Colloid Interface Sci 2022; 606:1823-1832. [PMID: 34507173 DOI: 10.1016/j.jcis.2021.08.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 11/18/2022]
Abstract
HYPOTHESIS The injection of air into the sample cell of an isothermal titration calorimeter containing a liquid provides a rich-in-information signal, with a periodic contribution arising from the creation, growing and release of bubbles. The identification and analysis of such contributions allow the accurate determination of the surface tension of the target liquid. EXPERIMENTS Air is introduced at a constant rate into the sample cell of the calorimeter containing either a pure liquid or a solution. The resulting calorimetric signal is analyzed by a new algorithm, which is implemented into a computational code. FINDINGS The thermal power generated by our experiments is often noisy, thus hiding the periodic signal arising from the bubbles' formation and release. The new algorithm was tested with a range of different types of calorimetric raw data, some of them apparently being just noise. In all cases, the contribution of the bubbles to the signal was isolated and the corresponding period was successfully determined in an automated way. It is also shown that two reference measurements suffice to calibrate the instrument at a given temperature, regardless the injection rate, allowing the direct determination of surface tension values for the liquid contained in the sample cell.
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Affiliation(s)
- Pablo F Garrido
- Departamento de Fisica de Aplicada, Facultade de Fisica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
| | - Margarida Bastos
- CIQ-UP, Departamento de Quimica e Bioquimica, Faculdade de Ciencias da Universidade do Porto, R. Campo Alegre 687, P-4169-007 Porto, Portugal
| | - Adrián Velázquez-Campoy
- Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, Universidad de Zaragoza, Zaragoza 50018, Spain; Department of Biochemistry and Molecular and Cell Biology, Universidad de Zaragoza, 50009 Zaragoza, Spain; Aragon Institute for Health Research (IIS Aragon), 50009 Zaragoza, Spain; Biomedical Research Networking Centre for Liver and Digestive Diseases (CIBERehd), 28029 Madrid, Spain; Fundacion ARAID, Government of Aragon, 50018 Zaragoza, Spain
| | - Alfredo Amigo
- Departamento de Fisica de Aplicada, Facultade de Fisica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Philippe Dumas
- IGBMC, Dept of Integrative Biology, Strasbourg University, F67404 Illkirch CEDEX, France
| | - Ángel Piñeiro
- Departamento de Fisica de Aplicada, Facultade de Fisica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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Ye Z, Yang J, Su H, Lian C, Shang Y, Liu H. Flow effects on the surface properties of surfactant foam films. Phys Chem Chem Phys 2021; 23:26761-26767. [PMID: 34846391 DOI: 10.1039/d1cp03279h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The surface electrostatic properties of liquid foam, involving the electrokinetic (EK) phenomena in the liquid-gas interface, have significant effects on the stability of the foam. Here, we established a theoretical model for ion transport in liquid films by combining the liquid flow and surface reaction. We found that the surface electrostatic properties of liquid foams were influenced unexpectedly by the pressure-induced flow. The liquid flow will induce the potential and concentration differences in the flow direction. When the pressure drop increases to a certain high value, the induced potential and salt concentration difference increases, leading to the change of the surface electrostatic properties such as zeta potential and the surface charge density. This change shows that the surface electrostatic properties of foam films depend on the coupling of various factors including ion distribution and pressure drop, which deepens our understanding of the electrostatic properties of the foam films.
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Affiliation(s)
- Zhicheng Ye
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Jie Yang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Haiping Su
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Cheng Lian
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China. .,State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yazhuo Shang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Honglai Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China. .,State Key Laboratory of Chemical Engineering, Shanghai Engineering Research Center of Hierarchical Nanomaterials, East China University of Science and Technology, Shanghai 200237, P. R. China
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Lin F, Ng JK, Huang Y, Huang C, Zeng H. Formation and stability of oil‐laden foam: Effect of surfactant and hydrocarbon solvent. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Feng Lin
- Natural Resources Canada CanmetENERGY Devon Alberta Canada
| | - Jason K. Ng
- Natural Resources Canada CanmetENERGY Devon Alberta Canada
| | - Yueying Huang
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Charley Huang
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
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Batool Z, Hu G, Xinyue H, Wu Y, Fu X, Cai Z, Huang X, Ma M. A comprehensive review on functional properties of preserved eggs as an excellent food ingredient with anti-inflammatory and anti-cancer aspects. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101347] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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47
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Hu N, Zhang K, Li Y, Hou T, Zhang Z, Li H. Glycine betaine enhanced foam separation for recovering and enriching protein from the crude extract of perilla seed meal. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118712] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Kumar RS, Sinha A, Sharma H, Sharma T. High performance carbon dioxide foams of nanocomposites of binary colloids for effective carbon utilization in enhanced oil recovery applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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F Garrido P, Rodríguez-Dafonte P, García-Río L, Piñeiro Á. Simple ApproximaTion for Aggregation Number Determination by Isothermal Titration Calorimetry: STAND-ITC. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11781-11792. [PMID: 34570499 DOI: 10.1021/acs.langmuir.1c01727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A new proposal to obtain aggregation numbers from isothermal titration calorimetry dilution experiments is described and tested using dodecyl trimethyl ammonium bromide, dodecyl methylimidazolium chloride, dodecyl methylimidazolium sulfonate, and didecyl methylimidazolium chloride aqueous solutions at different temperatures. The results were compared to those obtained from fluorescence measurements and also with data from the literature. In addition to the aggregation number, the molar free energy to transfer a solute molecule from the aggregate to the bulk solution, the enthalpy corresponding to the formation of the self-assembled suprastructures, the molar heat corresponding to the dilution of monomers and aggregates, and an offset parameter to account for unpredictable external contributions are simultaneously obtained using the same method. The new equations are compared to those obtained from previous proposals, and they are also analyzed in detail to assess the impact of each fitting parameter in the profile of the calorimetric isotherm. This new approach has been implemented in a computational code that automatically determines the fitting parameters as well as the corresponding statistical uncertainties for the large variety of calorimetric profiles that have been tested. Given the high sensitivity of the dilution experiments to the aggregation number for relatively small assemblies, our approach is proposed also to quantify the oligomerization state of biomolecules such as proteins and peptides.
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Affiliation(s)
- Pablo F Garrido
- Departamento de Fisica de Aplicada, Facultade de Fisica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Pedro Rodríguez-Dafonte
- CIQUS, Departamento de Quimica Física, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Luis García-Río
- CIQUS, Departamento de Quimica Física, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| | - Ángel Piñeiro
- Departamento de Fisica de Aplicada, Facultade de Fisica, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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50
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Zhang H, Xi H, Li Z, Pan X, Wang Y, Chen C, Lin X, Luo X. The stability and decontamination of surface radioactive contamination of biomass-based antifreeze foam. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126774] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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