1
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Bai D, Wang Z, Xiao Y, Liu T, Pu Y, Sun H, Wang M, Guo C, Zhang J. Transdermal delivery of elastin peptide assisted by betaine-based deep eutectic solvent to ameliorate skin photoaging. BIOMATERIALS ADVANCES 2024; 163:213965. [PMID: 39053386 DOI: 10.1016/j.bioadv.2024.213965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/10/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
The unique amino acid composition of elastin peptide (EP) makes it an excellent resource to obtain antioxidant peptides. It exhibits high elastase inhibitory activity with the potential to resist skin aging and is currently used in a many cosmetic products. However, the inherent low permeability of the skin limits its ability to penetrate the skin. To address this issue, a deep eutectic solvent (SAB) with excellent bioactivity was synthesized from betaine and succinic acid and used as a permeation enhancer to improve the absorption and utilization of EP in this paper. The results showed that low SAB concentrations significantly increased the transdermal delivery of EP. The 3D epidermal skin model (EpiKutis®) demonstrated that SAB/EP induced the synthesis of hyaluronic acid (HA) and filaggrin (FLG), accelerated skin barrier repair, and reduced water loss. Additionally, the zebrafish embryonic model showed that SAB/EP could reduce melanin secretion, decrease melanin deposition, and have an ameliorative effect on skin photoaging. Cellular experiments proved that SAB/EP can stimulate human skin fibroblasts to secrete procollagen I and elastin, improving skin elasticity and anti-wrinkle. The combination of EP and DES is a new attempt that is expected to be used as a safe and effective anti-wrinkle cosmetic material.
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Affiliation(s)
- De Bai
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen 518055, PR China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, PR China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China
| | - Zhenyuan Wang
- Shenzhen Shinehigh Innovation technology LTD., Shenzhen 518055, PR China
| | - Yuan Xiao
- Guangdong Marubi Biotechnol Co Ltd, Guangzhou 510700, PR China
| | - Tianqi Liu
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen 518055, PR China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, PR China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China
| | - Yan Pu
- Guangdong Marubi Biotechnol Co Ltd, Guangzhou 510700, PR China
| | - Huaiqing Sun
- Guangdong Marubi Biotechnol Co Ltd, Guangzhou 510700, PR China
| | - Mi Wang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen 518055, PR China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, PR China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China.
| | - Chaowan Guo
- Guangdong Marubi Biotechnol Co Ltd, Guangzhou 510700, PR China.
| | - Jiaheng Zhang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen 518055, PR China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, PR China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, PR China; Shenzhen Shinehigh Innovation technology LTD., Shenzhen 518055, PR China.
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2
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Yin H, You M, Shi X, Yu H, Chen Q. New insights into pure zwitterionic hydrogels with high strength and high toughness. MATERIALS HORIZONS 2024; 11:3946-3960. [PMID: 38874530 DOI: 10.1039/d4mh00164h] [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
Zwitterionic hydrogels are electrically neutral materials with both cationic and anionic groups that impart excellent anti-fouling properties and ion channel orientations. However, pure zwitterionic hydrogels generally exhibit low strength and toughness. In this study, it has been discovered that polymerizable zwitterionic monomers in aqueous solution exhibit a unique liquid-liquid phase separation phenomenon at a high monomer concentration of ≥50 wt%, resulting in pure and commercial zwitterionic hydrogels with high compressive strength (6.5 MPa) and high toughness (2.12 kJ m-2). This phase separation and the corresponding aggregations might be caused by strong dipole-dipole interactions among residual zwitterionic monomers under the lack of free-water condition. The synergistic effect of liquid-liquid phase separation and polymer entanglement enhances the mechanical strength, toughness, self-recovery, and anti-freezing properties of pure polyzwitterionic hydrogels. Moreover, the high fracture energy of highly elongated yet tough polyzwitterionic hydrogels facilitates the development of high crack propagation resistance, which supports an expanded role in tissue engineering, soft flexible devices, and electronics applications with improved durability. A wide range of applications for the proposed polyzwitterionic hydrogels is demonstrated by the development and testing of a strain sensor and a triboelectric nanogenerator device. Our findings provide novel insights into the network structure of pure polyzwitterionic hydrogels.
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Affiliation(s)
- Haiyan Yin
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Min You
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Xinlei Shi
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Hui Yu
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
| | - Qiang Chen
- Joint Research Center of Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo, Zhejiang 315700, China.
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 352001, Zhejiang, China.
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3
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Yang Q, Yang W, Wang Z, Chen R, Li M, Qin C, Gao D, Chen W. Strong and Tough Antifreezing Hydrogel Sensor via the Synergy of Coordination and Hydrogen Bonds. ACS APPLIED MATERIALS & INTERFACES 2023; 15:51684-51693. [PMID: 37874370 DOI: 10.1021/acsami.3c10205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Hydrogel sensors are fascinating as flexible sensors and electronic skin due to their excellent biocompatibility and structure controllability. However, developing conductive hydrogels possessing both excellent mechanical and antifreezing properties for environmental-adaptive sensors remains a challenge. Herein, a strategy of combining betaine and metal ions to construct poly(acrylic acid) (PAA)-based high-conductive hydrogels has been reported. PAA-Al3+/betaine hydrogels with high toughness and antifreezing property were prepared by a one-step UV curing method. Their high toughness is attributed to the coordination of metal ions with the carboxylic groups in PAA, the interaction of betaine with PAA, and the formation of hydrogen bonds between them and water molecules. Moreover, the significant antifreezing property is due to the reduction of free water in the hydrogel. This, in turn, is attributed to the hydration of metal ions and the synergistic hydrogen bonding between betaine and water. The experiments demonstrate that the hydrogel has excellent mechanical property, high conductivity, superior transparency, antiswelling property, antipuncture as well as shape memory properties, and especially, low cytotoxicity. It can be used as a sensor for motion detection and information recognition. This work provides new insights into the application of flexible sensors and human-machine interfaces in multienvironmental conditions.
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Affiliation(s)
- Qin Yang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Wenjing Yang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhen Wang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Rong Chen
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Mingzi Li
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Chuanjian Qin
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Dahang Gao
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Wei Chen
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130021, China
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4
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Frolov NE, Shishkina AV, Vener MV. Specific Proton-Donor Properties of Glycine Betaine. Metric Parameters and Enthalpy of Noncovalent Interactions in its Dimer, Water Complexes and Crystalline Hydrate. Int J Mol Sci 2023; 24:12971. [PMID: 37629150 PMCID: PMC10455243 DOI: 10.3390/ijms241612971] [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: 07/24/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Trimethylglycine (glycine betaine, GB) is an important organic osmolyte that accumulates in various plant species in response to environmental stresses and has significant potential as a bioactive agent with low environmental impact. It is assumed that the hydration of GB is playing an important role in the protective mechanism. The hydration and aggregation properties of GB have not yet been studied in detail at the atomistic level. In this work, noncovalent interactions in the GB dimer and its complexes with water and crystalline monohydrate are studied. Depending on the object, periodic and non-periodic DFT calculations are used. Particular attention is paid to the metric parameters and enthalpies of intermolecular hydrogen bonds. The identification of noncovalent interactions is carried out by means of the Bader analysis of periodic or non-periodic electron density. The enthalpy of hydrogen bonds is estimated using the Rosenberg formula (PCCP 2 (2000) 2699). The specific proton donor properties of glycine betaine are due to its ability to form intermolecular C-H∙∙∙O bonds with the oxygen atom of a water molecule or the carboxylate group of a neighboring GB. The enthalpy of these bonds can be significantly greater than 10 kJ/mol. The water molecule that forms a hydrogen bond with the carboxylate group of GB also interacts with its CH groups through lone pairs of electrons. The C-H∙∙∙O bonds contribute up to 40% of the total entropy of the GB-water interaction, which is about 45 kJ/mol. The possibility of identifying C-H∙∙∙O bonds by the proton nuclear magnetic resonance method is discussed.
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Affiliation(s)
- Nikita E. Frolov
- V. M. Gorbatov Federal Research Center for Food Systems, Talalikhina St., 26, Moscow 109316, Russia;
| | - Anastasia V. Shishkina
- Department of Physics and Engineering Environmental Protection, Northern (Arctic) Federal University, Severnaya Dvina Emb. 17, Arkhangelsk 163001, Russia;
| | - Mikhail V. Vener
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii prosp. 31, Moscow 119991, Russia
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5
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Zhang C, Cao L, Jiang Y, Huang Z, Liu G, Wei Y, Xia Q. Molecular Dynamics Simulations on the Adsorbed Monolayers of N-Dodecyl Betaine at the Air-Water Interface. Molecules 2023; 28:5580. [PMID: 37513452 PMCID: PMC10384152 DOI: 10.3390/molecules28145580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/14/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Betaine is a kind of zwitterionic surfactant with both positive and negative charge groups on the polar head, showing good surface activity and aggregation behaviors. The interfacial adsorption, structures and properties of n-dodecyl betaine (NDB) at different surface coverages at the air-water interface are studied through molecular dynamics (MD) simulations. Interactions between the polar heads and water molecules, the distribution of water molecules around polar heads, the tilt angle of the NDB molecule, polar head and tail chain with respect to the surface normal, the conformations and lengths of the tail chain, and the interfacial thickness of the NDB monolayer are analyzed. The change of surface coverage hardly affects the locations and spatial distributions of the water molecules around the polar heads. As more NDB molecules are adsorbed at the air-water interface, the number of hydrogen bonds between polar heads and water molecules slightly decreases, while the lifetimes of hydrogen bonds become larger. With the increase in surface coverage, less gauche defects along the alkyl chain and longer NDB chain are obtained. The thickness of the NDB monolayer also increases. At large surface coverages, tilted angles of the polar head, tail chain and whole NDB molecule show little change with the increase in surface area. Surface coverages can change the tendency of polar heads and the tail chain for the surface normal.
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Affiliation(s)
- Chengfeng Zhang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Lulu Cao
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Yongkang Jiang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Zhiyao Huang
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Guokui Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Yaoyao Wei
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
| | - Qiying Xia
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
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6
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Qu S, Hadjittofis E, Malaret F, Hallett J, Smith R, Campbell KS. Controlling simonkolleite crystallisation via metallic Zn oxidation in a betaine hydrochloride solution. NANOSCALE ADVANCES 2023; 5:2437-2452. [PMID: 37143811 PMCID: PMC10153477 DOI: 10.1039/d3na00108c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 05/06/2023]
Abstract
Zinc oxide nanoparticles, with a hexagonal flake structure, are of significant interest across a range of applications including photocatalysis and biomedicine. Simonkolleite (Zn5(OH)8Cl2·H2O), a layered double hydroxide, is a precursor for ZnO. Most simonkolleite synthesis routes require precise pH adjustment of Zn-containing salts in alkaline solution, and still produce some undesired morphologies along with the hexagonal one. Additionally, liquid-phase synthesis routes, based on conventional solvents, are environmentally burdensome. Herein aqueous ionic liquid, betaine hydrochloride (betaine·HCl), solutions are used to directly oxidise metallic Zn, producing pure simonkolleite nano/microcrystals (X-ray diffraction analysis, thermogravimetric analysis). Imaging (scanning electron microscopy) showed regular and uniform hexagonal simonkolleite flakes. Morphological control, as a function of reaction conditions (betaine·HCl concentration, reaction time, and reaction temperature), was achieved. Different growth mechanisms were observed as a function of the concentration of betaine·HCl solution, both traditional classical growth of individual crystals and non-traditional growth patterns; the latter included examples of Ostwald ripening and oriented attachment. After calcination, simonkolleite's transformation into ZnO retains its hexagonal skeleton; this produces a nano/micro-ZnO with a relatively uniform shape and size through a convenient reaction route.
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Affiliation(s)
- Shaoqing Qu
- The University of Sheffield, Department of Chemical and Biological Engineering Sheffield UK
| | - Eftychios Hadjittofis
- The University of Sheffield, Department of Chemical and Biological Engineering Sheffield UK
- UCB Pharma SA Belgium Brussels Belgium
| | - Francisco Malaret
- Imperial College London, Department of Chemical Engineering London UK
- Nanomox Ltd. London UK
| | - Jason Hallett
- Imperial College London, Department of Chemical Engineering London UK
| | - Rachel Smith
- The University of Sheffield, Department of Chemical and Biological Engineering Sheffield UK
| | - Kyra Sedransk Campbell
- The University of Sheffield, Department of Chemical and Biological Engineering Sheffield UK
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Ying Lee S, Nan Liang Y, Stuckey DC, Hu X. Single-step extraction of bioactive compounds from cruciferous vegetable (kale) waste using natural deep eutectic solvents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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8
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Zhang L, Qin Z, Zhang L, Jiang Y, Zhu J. Dynamic changes of quality and flavor characterization of Zhejiang rosy vinegar during fermentation and aging based on untargeted metabolomics. Food Chem 2023; 404:134702. [DOI: 10.1016/j.foodchem.2022.134702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/24/2022] [Accepted: 10/18/2022] [Indexed: 11/22/2022]
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9
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Xia Y, Jiang X, Wang Y, Huang Q, Chen D, Hou C, Mu Y, Shen J. Enhanced anaerobic reduction of nitrobenzene at high salinity by betaine acting as osmoprotectant and regulator of metabolism. WATER RESEARCH 2022; 223:118982. [PMID: 36058098 DOI: 10.1016/j.watres.2022.118982] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/24/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
Anaerobic technology is extensively applied in the treatment of industrial organic wastewater, but high salinity always triggers microbial cell dehydration, causing the failure of the anaerobic process. In this work, betaine, one kind of compatible solutes which could balance the osmotic pressure of anaerobic biomass, was exogenously added for enhancing the anaerobic reduction of nitrobenzene (NB) at high salinity. Only 100 mg L-1 betaine dosing could significantly promote the removal efficiency of NB within 35 h at 9% salinity (36.92 ± 4.02% without betaine and 72.94 ± 6.57% with betaine). The relieving effects on salt stress could be observed in the promotion of more extracellular polymeric substances (EPS) secretion with betaine addition. Additionally, the oxidation-reduction potential (ORP), as well as the electron transfer system (ETS) value, was increased with betaine addition, which was reflected in the improvement of system removal efficiency and enzyme activity. Microbial community analysis demonstrated that Bacillus and Clostridiisalibacter which were positively correlated with the stability of the anaerobic process were enriched with betaine addition at high salinity. Metagenomic analysis speculated that the encoding genes for salt tolerance (kdpB/oadA/betA/opuD/epsP/epsH) and NB degradation (nfsA/wrbA/ccdA/menC) obtained higher relative abundance with betaine addition under high salt environment, which might be the key to improving salt tolerance of anaerobic biomass. The long-term assessment demonstrated that exogenous addition betaine played an important role in maintaining the stability of the anaerobic system, which would be a potential strategy to achieve a high-efficiency anaerobic process under high salinity conditions.
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Affiliation(s)
- Yan Xia
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xinbai Jiang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yuxuan Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qian Huang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Dan Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Cheng Hou
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jinyou Shen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Stasiulewicz M, Panuszko A, Bruździak P, Stangret J. Mechanism of Osmolyte Stabilization-Destabilization of Proteins: Experimental Evidence. J Phys Chem B 2022; 126:2990-2999. [PMID: 35441516 PMCID: PMC9059127 DOI: 10.1021/acs.jpcb.2c00281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
In this work, we
investigated the influence of stabilizing (N,N,N-trimethylglycine)
and destabilizing (urea) osmolytes on the hydration spheres of biomacromolecules
in folded forms (trpzip-1 peptide and hen egg white
lysozyme—hewl) and unfolded protein models
(glycine—GLY and N-methylglycine—NMG)
by means of infrared spectroscopy. GLY and NMG were clearly limited
as minimal models for unfolded proteins and should be treated with
caution. We isolated the spectral share of water changed simultaneously
by the biomacromolecule/model molecule and the osmolyte, which allowed
us to provide unambiguous experimental arguments for the mechanism
of stabilization/destabilization of proteins by osmolytes. In the
case of both types of osmolytes, the decisive factor determining the
equilibrium folded/unfolded state of protein was the enthalpy effect
exerted on the hydration spheres of proteins in both forms. In the
case of stabilizing osmolytes, enthalpy was also favored by entropy,
as the unfolded state of a protein was more entropically destabilized
than the folded state.
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Affiliation(s)
- Marcin Stasiulewicz
- Department of Physical Chemistry, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
| | - Aneta Panuszko
- Department of Physical Chemistry, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
| | - Piotr Bruździak
- Department of Physical Chemistry, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
| | - Janusz Stangret
- Department of Physical Chemistry, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
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Xu S, Ma Z, Chen Y, Li J, Jiang H, Qu T, Zhang W, Li C, Liu S. Characterization of the flavor and nutritional value of coconut water vinegar based on metabolomics. Food Chem 2022; 369:130872. [PMID: 34455324 DOI: 10.1016/j.foodchem.2021.130872] [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: 04/06/2021] [Revised: 08/10/2021] [Accepted: 08/14/2021] [Indexed: 11/24/2022]
Abstract
Tender Coconut water is popular for its deliciousness and nutrition. Mature coconut water, usually discarded as waste in the coconut kernel-based food industry due to its unpleasant flavor, was used as a raw material to make vinegar by liquid-state fermentation. The compounds in fresh coconut water with high odor activity values (OAVs) were isovaleric acid and acetic acid, with pungent sour tastes. The compounds with high OAVs in aged coconut water vinegar were phenylethyl acetate, isoamyl acetate and benzaldehyde, with almond, banana or pear-like aromas. Coconut water vinegar was rich in essential amino acids, especially phenylalanine. Through pathway analysis, seventeen key metabolic pathways and three key metabolic substrates (aspartate, glutamate and pyruvate) were found. According to sensory evaluation, the aged vinegar tastes better. Coconut water vinegar is delicious and nutritious, so reprocessing mature coconut water into vinegar is an appropriate way to reuse waste coconut water.
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Affiliation(s)
- Senzheng Xu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Zewei Ma
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Ying Chen
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Jiaxin Li
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Haiyan Jiang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Taiqi Qu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Weimin Zhang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou City, Haikou 570228, China
| | - Congfa Li
- School of Food Science and Engineering, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou City, Haikou 570228, China.
| | - Sixin Liu
- School of Science, Hainan University, Haikou 570228, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, Haikou 570228, China; Key Laboratory of Tropical Agricultural Products Processing Technology of Haikou City, Haikou 570228, China.
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12
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Zhang W, Wu B, Sun S, Wu P. Skin-like mechanoresponsive self-healing ionic elastomer from supramolecular zwitterionic network. Nat Commun 2021; 12:4082. [PMID: 34215738 PMCID: PMC8253733 DOI: 10.1038/s41467-021-24382-4] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/16/2021] [Indexed: 12/31/2022] Open
Abstract
Stretchable ionic skins are intriguing in mimicking the versatile sensations of natural skins. However, for their applications in advanced electronics, good elastic recovery, self-healing, and more importantly, skin-like nonlinear mechanoresponse (strain-stiffening) are essential but can be rarely met in one material. Here we demonstrate a robust proton-conductive ionic skin design via introducing an entropy-driven supramolecular zwitterionic reorganizable network to the hydrogen-bonded polycarboxylic acid network. The design allows two dynamic networks with distinct interacting strength to sequentially debond with stretch, and the conflict among elasticity, self-healing, and strain-stiffening can be thus defeated. The representative polyacrylic acid/betaine elastomer exhibits high stretchability (1600% elongation), immense strain-stiffening (24-fold modulus enhancement), ~100% self-healing, excellent elasticity (97.9 ± 1.1% recovery ratio, <14% hysteresis), high transparency (99.7 ± 0.1%), moisture-preserving, anti-freezing (elastic at -40 °C), water reprocessibility, as well as easy-to-peel adhesion. The combined advantages make the present ionic elastomer very promising in wearable iontronic sensors for human-machine interfacing.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology and Center for Advanced Low-dimension Materials, Donghua University, Shanghai, China
| | - Baohu Wu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich, Garching, Germany
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology and Center for Advanced Low-dimension Materials, Donghua University, Shanghai, China.
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology and Center for Advanced Low-dimension Materials, Donghua University, Shanghai, China.
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13
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The microstructure and properties of GO hydration layers and the effects on the adsorption of UO22+. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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