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Boccia AC, Pulvirenti A, Cerruti P, Silvetti T, Brasca M. Antimicrobial starch-based cryogels and hydrogels for dual-active food packaging applications. Carbohydr Polym 2024; 342:122340. [PMID: 39048188 DOI: 10.1016/j.carbpol.2024.122340] [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: 04/22/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 07/27/2024]
Abstract
The present study reports on the valorisation of starch waste biomass to produce dual-active cryogels and hydrogels able to adsorb water and deliver antimicrobial substances for fresh food packaging applications. Starch hydrogels were prepared by oxidation with sodium metaperiodate in water and mild conditions, while cryogels were obtained by freeze-drying process. To explore the role of starch composition on the final properties of materials, two starches differing in amylose/amylopectin ratio, were evaluated. The prepared materials were microstructurally and morphologically characterized by FTIR and NMR spectroscopy (1D, 2D, and DOSY experiments), and SEM microscopy. To provide the materials with active properties, they were loaded with antimicrobial molecules by absorption, or by crosslinking via Schiff-base reaction. All materials demonstrated high water absorption capacity and ability to deliver volatile molecules, including diacetyl and complex mixtures like mint essential oil. The release profiles of the adsorbed molecules were determined through quantitative NMR spectroscopy over time. The antibacterial activity was successfully demonstrated against Gram-positive bacterial strains for unloaded cryogels and hydrogels, and after loading with diacetyl and essential oil. The developed materials can be regarded as part of active pads for food packaging applications capable to control moisture inside the package and inhibit microbial contamination.
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Affiliation(s)
- Antonella Caterina Boccia
- Institute of Chemical Sciences and Technologies (SCITEC), National Research Council (CNR), Via A. Corti, 12, 20133 Milano, Italy.
| | - Alfio Pulvirenti
- Institute of Chemical Sciences and Technologies (SCITEC), National Research Council (CNR), Via A. Corti, 12, 20133 Milano, Italy
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council (CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Tiziana Silvetti
- Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Via Celoria 2, 20133 Milano, Italy
| | - Milena Brasca
- Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Via Celoria 2, 20133 Milano, Italy
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Hellebois T, Addiego F, Gaiani C, Shaplov AS, Soukoulis C. Unravelling the functionality of anionic and non-ionic plant seed gums on milk protein cryogels conveying Lacticaseibacillus rhamnosus GG. Carbohydr Polym 2024; 323:121376. [PMID: 37940272 DOI: 10.1016/j.carbpol.2023.121376] [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: 07/11/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 11/10/2023]
Abstract
Cryogels offer a promising macroporous platform that can be employed as either a functional ingredient in food composites or a colloidal template for incorporating bioactives, including probiotic living cells. The aim of the present work is to explore the functionality of two plant seed polysaccharides, flaxseed gum (FG) and alfalfa galactomannan (AAG), in individual and combined (1:1 ratio) milk protein-based cryogels, namely sodium caseinate (NaCas) and whey protein isolate (WPI). These cryogels were created by freeze-drying hydrogels formed via L.rhamnosus GG - a human gut-relevant probiotic strain - fermentation. Our findings showed that including gum in the composition limited volume contraction during lyophilisation, reduced macropore size and thickened cryogel skeleton vessels. Furthermore, gum-containing cryogels displayed improved thermal stability and slower water disintegration rates. The AAG-stabilised cryogels specifically showed a notable reduction in monolayer water content compared to FG. From a mechanistic viewpoint, AAG influenced the physicochemical and microstructural properties of the cryogels, most probably via its self-association during cryogenic processing, promoting the development of intertwined protein-gum networks. FG, on the other hand, enhanced these properties through electrostatic complexation with proteins. Cryogels made from protein-polysaccharide blends exhibited promising techno-functional properties for enhancing and diversifying food product innovation.
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Affiliation(s)
- Thierry Hellebois
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg; Université de Lorraine, LIBio, F-54000 Nancy, France
| | - Frédéric Addiego
- Materials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg
| | - Claire Gaiani
- Université de Lorraine, LIBio, F-54000 Nancy, France
| | - Alexander S Shaplov
- Materials Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg
| | - Christos Soukoulis
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette L-4362, Luxembourg.
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Vrabič-Brodnjak U. Hybrid Materials of Bio-Based Aerogels for Sustainable Packaging Solutions. Gels 2023; 10:27. [PMID: 38247750 PMCID: PMC10815338 DOI: 10.3390/gels10010027] [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: 12/06/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
This review explores the field of hybrid materials in the context of bio-based aerogels for the development of sustainable packaging solutions. Increasing global concern over environmental degradation and the growing demand for environmentally friendly alternatives to conventional packaging materials have led to a growing interest in the synthesis and application of bio-based aerogels. These aerogels, which are derived from renewable resources such as biopolymers and biomass, have unique properties such as a lightweight structure, excellent thermal insulation, and biodegradability. The manuscript addresses the innovative integration of bio-based aerogels with various other materials such as nanoparticles, polymers, and additives to improve their mechanical, barrier, and functional properties for packaging applications. It critically analyzes recent advances in hybridization strategies and highlights their impact on the overall performance and sustainability of packaging materials. In addition, the article identifies the key challenges and future prospects associated with the development and commercialization of hybrid bio-based aerogel packaging materials. The synthesis of this knowledge is intended to contribute to ongoing efforts to create environmentally friendly alternatives that address the current problems associated with conventional packaging while promoting a deeper understanding of the potential of hybrid materials for sustainable packaging solutions.
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Affiliation(s)
- Urška Vrabič-Brodnjak
- Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana, Snežniška 5, 1000 Ljubljana, Slovenia
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Guo X, Zhao H, Qiang X, Ouyang C, Wang Z, Huang D. Facile construction of agar-based fire-resistant aerogels: A synergistic strategy via in situ generations of magnesium hydroxide and cross-linked Ca-alginate. Int J Biol Macromol 2023; 227:297-306. [PMID: 36549030 DOI: 10.1016/j.ijbiomac.2022.12.164] [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: 10/26/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Biomass-based aerogel materials have many advantages, such as low thermal conductivity and non-toxicity. These materials are environmentally friendly and have broad development potential in the fields of packaging, cushioning and green building insulation. However, defects, such as low mechanical strength and poor fire safety, greatly limit the application of these materials. In this work, the agar/polyvinyl alcohol composite aerogel modified by the magnesium hydroxide (MH)/sodium alginate (SA) composite flame retardant system was developed by using a freeze-dried technology and the strategy of in-situ generation of MH and crosslinking of SA. The results showed that the MH/SA dramatically enhanced the mechanical and thermal stability of the composites. The compression modulus of AP-M35S15 was 2.37 MPa, which was 152.13 % higher than that of AP-M50. The limiting oxygen index value of AP-M35S15 was 34.1 % and reached V-0 level in the vertical burning test, which was better than those of the samples with a single MH effect. The cone calorimetric test showed that the MH/SA composite flame retardant system performed better in extending the ignition time, slowing down the heat release rate and reducing the total heat release and had a more complete dense carbon structure after burning.
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Affiliation(s)
- Xin Guo
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Hong Zhao
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Xiaohu Qiang
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Chengwei Ouyang
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Zhehui Wang
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China
| | - Dajian Huang
- School of Material Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, PR China.
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Hellebois T, Canuel R, Addiego F, Audinot JN, Gaiani C, Shaplov AS, Soukoulis C. Milk protein-based cryogel monoliths as novel encapsulants of probiotic bacteria. Part I: Microstructural, physicochemical, and mechanical characterisation. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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6
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Effects of Foaming Treatment and Wave-Absorbing Material-Assisted Microwave Heating on Freeze-Drying of Blueberry Puree. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02962-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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7
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Selvasekaran P, Chidambaram R. Bioaerogels as food materials: A state-of-the-art on production and application in micronutrient fortification and active packaging of foods. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107760] [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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8
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Fabrication of aerogel-templated oleogels from alginate-gelatin conjugates for in vitro digestion. Carbohydr Polym 2022; 291:119603. [DOI: 10.1016/j.carbpol.2022.119603] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 04/16/2022] [Accepted: 05/06/2022] [Indexed: 11/19/2022]
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9
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Aerogel: Functional Emerging Material for Potential Application in Food: a Review. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02829-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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FitzPatrick SE, Deb-Choudhury S, Ranford S, Staiger MP. Canola protein aerogels via salt-induced gelation and supercritical carbon dioxide drying. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111126] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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11
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Effects of Grafting Degree on the Physicochemical Properties of Egg White Protein-Sodium Carboxymethylcellulose Conjugates and Their Aerogels. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12042017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
To improve the mechanical strength and oil-loading performances of egg white protein (EWP) aerogel, the effects of different grafting degrees on the modification of EWP by sodium carboxymethylcellulose (CMC-Na) were investigated. After different dry-heat treatment durations (0, 12, 24, 36, and 48 h), the EWP/CMC-Na conjugates with different grafting degrees (noted as EC0, EC12, EC24, EC36, and EC48, respectively) were obtained. Subsequently, the physicochemical properties of the conjugates, as well as the microstructure, mechanical properties, pore parameters, emulsification properties and oil-carrying properties of the conjugated aerogels, were characterized. The results showed that EC12 (with a grafting degree of 8.35%) aerogel possessed a uniform structure, the largest specific surface area, and the best emulsification performance. This facilitated a more robust aerogel (2.05 MPa) with nearly three times the mechanical strength of EWP aerogel. Moreover, this had a positive influence on the efficient loading and stable retention of oil. EC12 aerogel thus achieved an oil absorption capacity of 5.46 g/g aerogel and an oil holding capacity of 31.95%, and both values were nearly 1.7 times higher than those of EWP aerogel. In general, the EWP-based aerogel with a grafting degree of 8.35% had the best mechanical and oil-loading properties.
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12
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Manzocco L, Plazzotta S, Powell J, de Vries A, Rousseau D, Calligaris S. Structural characterisation and sorption capability of whey protein aerogels obtained by freeze-drying or supercritical drying. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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13
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Food-grade aerogels obtained from polysaccharides, proteins, and seed mucilages: Role as a carrier matrix of functional food ingredients. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.04.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Wemmer J, Malafronte L, Foschini S, Schneider A, Schlepütz CM, Leser ME, Michel M, Burbigde A, Windhab EJ. Fabrication of a Novel Protein Sponge with Dual-Scale Porosity and Mixed Wettability Using a Clean and Versatile Microwave-Based Process. MATERIALS 2021; 14:ma14092298. [PMID: 33946697 PMCID: PMC8124266 DOI: 10.3390/ma14092298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 01/10/2023]
Abstract
An open-porous protein sponge with mixed wettability is presented made entirely from whey proteins and with promising applications in biomedicine, pharmaceutical, and food industry. The fabrication relies on an additive-free, clean and scalable process consisting of foaming followed by controlled microwave-convection drying. Volumetric heating throughout the matrix induced by microwaves causes fast expansion and elongation of the foam bubbles, retards crust formation and promotes early protein denaturation. These effects counteract collapse and shrinkage typically encountered in convection drying of foams. The interplay of high protein content, tailored gas incorporation and controlled drying result in a dried structure with dual-scale porosity composed of open macroscopic elongated foam bubbles and microscopic pores in the surrounding solid lamellae induced by water evaporation. Due to the insolubility and mixed wettability of the denatured protein network, polar and non-polar liquids are rapidly absorbed into the interconnected capillary system of the sponge without disintegrating. While non-watery liquids penetrate the pores by capillary suction, water diffuses also into the stiff protein matrix, inducing swelling and softening. Consequently, the water-filled soft sponge can be emptied by compression and re-absorbs any wetting liquid into the free capillary space.
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Affiliation(s)
- Judith Wemmer
- Laboratory of Food Process Engineering, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; (J.W.); (S.F.); (A.S.)
| | - Loredana Malafronte
- Laboratory of Food Process Engineering, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; (J.W.); (S.F.); (A.S.)
- Correspondence: (L.M.); (E.J.W.)
| | - Socrates Foschini
- Laboratory of Food Process Engineering, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; (J.W.); (S.F.); (A.S.)
| | - Aline Schneider
- Laboratory of Food Process Engineering, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; (J.W.); (S.F.); (A.S.)
| | | | - Martin E. Leser
- Société des Produits Nestlé S.A.,Nestlé Research, Route du Jorat 57, 1000 Lausanne, Switzerland; (M.E.L.); (M.M.); (A.B.)
| | - Martin Michel
- Société des Produits Nestlé S.A.,Nestlé Research, Route du Jorat 57, 1000 Lausanne, Switzerland; (M.E.L.); (M.M.); (A.B.)
| | - Adam Burbigde
- Société des Produits Nestlé S.A.,Nestlé Research, Route du Jorat 57, 1000 Lausanne, Switzerland; (M.E.L.); (M.M.); (A.B.)
| | - Erich J. Windhab
- Laboratory of Food Process Engineering, Institute of Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; (J.W.); (S.F.); (A.S.)
- Correspondence: (L.M.); (E.J.W.)
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15
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Aerogels as porous structures for food applications: Smart ingredients and novel packaging materials. FOOD STRUCTURE 2021. [DOI: 10.1016/j.foostr.2021.100188] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Li J, Wong WY, Tao XM. Recent advances in soft functional materials: preparation, functions and applications. NANOSCALE 2020; 12:1281-1306. [PMID: 31912063 DOI: 10.1039/c9nr07035d] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Synthetic materials and biomaterials with elastic moduli lower than 10 MPa are generally considered as soft materials. Research studies on soft materials have been boosted due to their intriguing features such as light-weight, low modulus, stretchability, and a diverse range of functions including sensing, actuating, insulating and transporting. They are ideal materials for applications in smart textiles, flexible devices and wearable electronics. On the other hand, benefiting from the advances in materials science and chemistry, novel soft materials with tailored properties and functions could be prepared to fulfil the specific requirements. In this review, the current progress of soft materials, ranging from materials design, preparation and application are critically summarized based on three categories, namely gels, foams and elastomers. The chemical, physical and electrical properties and the applications are elaborated. This review aims to provide a comprehensive overview of soft materials to researchers in different disciplines.
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Affiliation(s)
- Jun Li
- Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Wai-Yeung Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
| | - Xiao-Ming Tao
- Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China.
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Chen HB, Li XL, Chen MJ, He YR, Zhao HB. Self-cross-linked melamine-formaldehyde-pectin aerogel with excellent water resistance and flame retardancy. Carbohydr Polym 2018; 206:609-615. [PMID: 30553364 DOI: 10.1016/j.carbpol.2018.11.041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/29/2018] [Accepted: 11/12/2018] [Indexed: 10/27/2022]
Abstract
Self-cross-linked aerogel based on pectin and melamine-formaldehyde resin (MF) was fabricated via freeze-drying method using water as solvent, where pectin is structural material meanwhile acting as acid to catalyse the cross-linking of MF. The cross-linking reaction easily occurs without additional additives, which can be significantly accelerated at elevated temperatures, with a critical value of about 55 °C. The obtained aerogel shows network microstructures as observed with SEM. With increasing pectin content, the aerogel shows significantly increased compressive modulus. The compressive modulus of M10Pe5 arrives 23.2 MPa, the specific modulus of which arrives 188 MPa cm3/g, while pure MF aerogel are too fragile to keep intact after freeze-dried. The resulting aerogel has good thermal stability, excellent water resistance (can be second dried with limited strength loss) and low flammability. This partially bio-based novel aerogel with impressive properties is promising in many applications.
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Affiliation(s)
- Hong-Bing Chen
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621000, China.
| | - Xin-Lei Li
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621000, China; School of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Ming-Jun Chen
- School of Science, Xihua University, Chengdu, Sichuan, 610039, China
| | - Yan-Rong He
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621000, China
| | - Hai-Bo Zhao
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric Materials Sichuan, Sichuan University, Chengdu, 610064, China.
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer-Aerogele und -Schäume: Chemie, Eigenschaften und Anwendungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Wim J. Malfait
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Matthias M. Koebel
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Gustav Nyström
- Angewandte Holzforschung; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
- Departement Gesundheitswissenschaften und Technologie; ETH Zürich; Schmelzbergstrasse 9 CH-8092 Zürich Schweiz
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer Aerogels and Foams: Chemistry, Properties, and Applications. Angew Chem Int Ed Engl 2018; 57:7580-7608. [DOI: 10.1002/anie.201709014] [Citation(s) in RCA: 336] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Wim J. Malfait
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Matthias M. Koebel
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Gustav Nyström
- Applied Wood Materials Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
- Department of Health Science and Technology; ETH Zurich; Schmelzbergstrasse 9 CH-8092 Zürich Switzerland
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Lazidis A, de Almeida Parizotto L, Spyropoulos F, Norton I. Reprint of: Microstructural design of aerated food systems by soft-solid materials. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2017.07.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Affiliation(s)
- Hong-Bing Chen
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, China
| | - David A. Schiraldi
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, USA
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Darniadi S, Ho P, Murray BS. Comparison of blueberry powder produced via foam-mat freeze-drying versus spray-drying: evaluation of foam and powder properties. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:2002-2010. [PMID: 28940205 DOI: 10.1002/jsfa.8685] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 08/23/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Blueberry juice powder was developed via foam-mat freeze-drying (FMFD) and spray-drying (SD) via addition of maltodextrin (MD) and whey protein isolate (WPI) at weight ratios of MD/WPI = 0.4 to 3.2 (with a fixed solids content of 5 wt% for FMFD and 10 wt% for SD). Feed rates of 180 and 360 mL h-1 were tested in SD. The objective was to evaluate the effect of the drying methods and carrier agents on the physical properties of the corresponding blueberry powders and reconstituted products. RESULTS Ratios of MD/WPI = 0.4, 1.0 and 1.6 produced highly stable foams most suitable for FMFD. FMFD gave high yields and low bulk density powders with flake-like particles of large size that were also dark purple with high red values. SD gave low powder recoveries. The powders had higher bulk density and faster rehydration times, consisting of smooth, spherical and smaller particles than in FMFD powders. The SD powders were bright purple but less red than FMFD powders. Solubility was greater than 95% for both FMFD and SD powders. CONCLUSION The FMFD method is a feasible method of producing blueberry juice powder and gives products retaining more characteristics of the original juice than SD. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Sandi Darniadi
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds, UK
- Indonesian Centre for Agricultural Postharvest Research and Development (ICAPRD), IAARD-Ministry of Agriculture, Jakarta, Indonesia
| | - Peter Ho
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Brent S Murray
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds, UK
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24
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Lazidis A, de Almeida Parizotto L, Spyropoulos F, Norton I. Microstructural design of aerated food systems by soft-solid materials. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2017.06.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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25
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Shang K, Liao W, Wang J, Wang YT, Wang YZ, Schiraldi DA. Nonflammable Alginate Nanocomposite Aerogels Prepared by a Simple Freeze-Drying and Post-Cross-Linking Method. ACS APPLIED MATERIALS & INTERFACES 2016; 8:643-50. [PMID: 26675804 DOI: 10.1021/acsami.5b09768] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Nonflammable materials based on renewable ammonium alginate and nano fillers (nanoscale magnesium hydroxide, nanoscale aluminum hydroxide, layered double hydroxide, sodium montmorillonite, and Kaolin) were fabricated through a simple, environmentally friendly freeze-drying process, in which water was used as a solvent. A simple and economic post-cross-linking method was used to obtain homogeneous samples. The microstructure of the cross-linked alginate aerogels show three-dimensional networks. These materials exhibit low densities (0.064-0.116 g cm(-3)), low thermal conductivities (0.024-0.046 W/m K), and useful mechanical strengths (0.7-3.5 MPa). The aerogels also exhibit high thermal stabilities and achieve inherent nonflammability with limiting oxygen indexes (LOI) higher than 60. Related properties were conducted and analyzed by cone calorimeter (CC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). These results combine to suggest promising prospects for use of these aerogel nanocomposites in a range of applications.
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Affiliation(s)
- Ke Shang
- Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Wang Liao
- Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Juan Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Yu-Tao Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University , Chengdu 610064, China
| | - Yu-Zhong Wang
- Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), State Key Laboratory of Polymer Materials Engineering, College of Chemistry, Sichuan University , Chengdu 610064, China
| | - David A Schiraldi
- Department of Macromolecular Science and Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
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26
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Shen P, Zhao HB, Huang W, Chen HB. Poly(vinyl alcohol)/clay aerogel composites with enhanced flame retardancy. RSC Adv 2016. [DOI: 10.1039/c6ra21689g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The effect of pentaerythritol octahydrogen tetraphosphate (PEPA) on the microstructure and properties of poly(vinyl alcohol) (PVOH)/clay aerogel composites was investigated.
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Affiliation(s)
- Peng Shen
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang 621000
- China
| | - Hai-Bo Zhao
- Research Center of Laser Fusion
- China Academy of Engineering Physics
- Mianyang
- China
| | - Wei Huang
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang 621000
- China
| | - Hong-Bing Chen
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang 621000
- China
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27
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Selmer I, Kleemann C, Kulozik U, Heinrich S, Smirnova I. Development of egg white protein aerogels as new matrix material for microencapsulation in food. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.05.023] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Ahmadi M, Madadlou A, Saboury AA. Whey protein aerogel as blended with cellulose crystalline particles or loaded with fish oil. Food Chem 2015; 196:1016-22. [PMID: 26593584 DOI: 10.1016/j.foodchem.2015.10.031] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/09/2015] [Accepted: 10/08/2015] [Indexed: 01/26/2023]
Abstract
Whey protein hydrogels blended with nanocrystalline and microcrystalline cellulose particles (NCC and MCC, respectively) were prepared, followed by freeze-drying, to produce aerogels. NCC blending increased the Young's modulus, and elastic character, of the protein aerogel. Aerogels were microporous and mesoporous materials, as characterized by the pores sizing 1.2 nm and 12.2 nm, respectively. Blending with NCC decreased the count of both microporous and mesoporous-classified pores at the sub-100 nm pore size range investigated. In contrast, MCC blending augmented the specific surface area and pores volume of the aerogel. It also increased moisture sorption affinity of aerogel. The feasibility of conveying hydrophobic nutraceuticals by aerogels was evaluated through loading fish oil into the non-blended aerogel. Oil loading altered its microstructure, corresponding to a peak displacement in Fourier-transform infra-red spectra, which was ascribed to increased hydrophobic interactions. Surface coating of aerogel with zein decreased the oxidation susceptibility of the loaded oil during subsequent storage.
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Affiliation(s)
- Maede Ahmadi
- Department of Food Science & Engineering, University College of Agriculture and Natural Resources (UTCAN), University of Tehran, Karaj, Iran
| | - Ashkan Madadlou
- Department of Food Science & Engineering, University College of Agriculture and Natural Resources (UTCAN), University of Tehran, Karaj, Iran; Center of Excellence for Application of Modern Technologies for Producing Functional Foods and Drinks (FFDCE), UTCAN, University of Tehran, Karaj, Iran; Interdisciplinary Research Department of Agricultural and Natural Resources Nanotechnology (IRDANN), UTCAN, University of Tehran, Karaj, Iran.
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
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29
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Chen HB, Zhao HB, Huang W, Shen P. Effects of Gamma Irradiation on Clay Membrane with Poly(vinyl alcohol) for Fire Retardancy. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong-Bing Chen
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621000, China
| | - Hai-Bo Zhao
- Research
Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621000, China
| | - Wei Huang
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621000, China
| | - Peng Shen
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621000, China
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30
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Chen HB, Zhao Y, Shen P, Wang JS, Huang W, Schiraldi DA. Effects of Molecular Weight upon Irradiation-Cross-Linked Poly(vinyl alcohol)/Clay Aerogel Properties. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20208-20214. [PMID: 26287451 DOI: 10.1021/acsami.5b05776] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Facile fabrication of mechanically strong poly(vinyl alcohol) (PVOH)/clay aerogel composites through a combination of increasing polymer molecular weights and gamma irradiation-cross-linking is reported herein. The aerogels produced from high polymer molecular weights exhibit significantly increased compressive moduli, similar to the effect of irradiation-induced cross-linking. The required irradiation dose for fabricating strong PVOH composite aerogels with dense microstructure decreased with increasing polymer molecular weight. Neither thermal stability nor flammability was significantly changed by altering the polymer molecular weight or by modest gamma irradiation, but they were highly dependent upon the polymer/clay ratio in the aerogel. Optimization of the mechanical, thermal, and flammability properties of these composite aerogels could therefore be obtained by using relatively low levels of polymer, with very high polymer molecular weight, or lower molecular weight coupled with moderate gamma irradiation. The facile preparation of strong, low flammability aerogels is an alternative to traditional polymer foams in applications where fire safety is important.
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Affiliation(s)
- Hong-Bing Chen
- Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics , Mianyang 621000, China
| | - Yan Zhao
- Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics , Mianyang 621000, China
| | - Peng Shen
- Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics , Mianyang 621000, China
| | - Jun-Sheng Wang
- Tianjin Fire Research Institute of the Ministry of Public Security, Tianjin 300381, China
| | - Wei Huang
- Institute of Nuclear Physics and Chemistry, Chinese Academy of Engineering Physics , Mianyang 621000, China
| | - David A Schiraldi
- Department of Macromolecular Science & Engineering, Case Western Reserve University , Cleveland, Ohio 44106-7202, United States
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31
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Chen HB, Wang YZ, Schiraldi DA. Preparation and flammability of poly(vinyl alcohol) composite aerogels. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6790-6796. [PMID: 24731187 DOI: 10.1021/am500583x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poly(vinyl alcohol) (PVOH)-based aerogel composites with nanoscale silica, halloysite, montmorillonite (MMT), and laponite were prepared via a freeze-drying method. The PVOH/MMT and PVOH/laponite composites exhibit higher compressive moduli than the PVOH/SiO2 or PVOH/halloysite samples. Layered microstructures were observed for the samples except with PVOH/laponite, which showed irregular network morphologies. Thermogravimetric analysis of the aerogel samples showed increased thermal stability with the addition of nanofillers. The heat release measured by cone calorimetry, smoke release, and carbon monoxide production of the aerogel composites are all significantly decreased with the addition of nanofillers; these values are much lower than those for commercial expanded polystyrene foam. The fillers did not lead to obvious increases in the limiting oxygen index values, and the corresponding time to ignition values decrease. The ability to adjust the nanofiller levels in these foamlike aerogel composites allows for specific tuning of these products for fire safety.
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Affiliation(s)
- Hong-Bing Chen
- Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu 610064, China
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