Sustainable Particleboards Based on Brewer’s Spent Grains
Brewer’s spent grain (BSG) is the main solid waste generated in beer production and primarily consists of barley malt husks. Based on the active promotion of circular economy practices aimed at recycling food industry by-products, this study assessed for the first time the production of particleboar...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/16/1/59 |
| _version_ | 1797358299303116800 |
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| author | Lucia Rossi Lucia Wechsler Mercedes A. Peltzer Emiliano M. Ciannamea Roxana A. Ruseckaite Pablo M. Stefani |
| author_facet | Lucia Rossi Lucia Wechsler Mercedes A. Peltzer Emiliano M. Ciannamea Roxana A. Ruseckaite Pablo M. Stefani |
| author_sort | Lucia Rossi |
| collection | DOAJ |
| description | Brewer’s spent grain (BSG) is the main solid waste generated in beer production and primarily consists of barley malt husks. Based on the active promotion of circular economy practices aimed at recycling food industry by-products, this study assessed for the first time the production of particleboards based on BSG as the sole source of lignocellulosic material and natural adhesive without the use of additives or other substrates. In order to achieve particleboards from entirely sustainable sources, BSG particles have to self-bind by thermo-compression with water. In this context, the aim of this study is to assess the effects of pressing temperatures and particle size on properties such as modulus of elasticity, modulus of rupture, internal bond, thickness swelling, and water absorption. The performance of binderless boards was compared with that of a control panel (control) using BSG combined with phenolic resin. Processing conditions were selected to produce boards with a target density of 1000 kg/m³ and a thickness of 5 mm. To confirm the efficiency of the self-adhesion process, scanning electron microscopy was used to examine the boards. The processes of self-adhesion and particle-to-particle contact were facilitated at a pressing temperature of 170 °C and a particle size range of 200–2380 µm (ground BSG), resulting in improved flexural properties and enhanced water resistance. The properties of BSG-based binderless boards were comparable to those reported for other biomass residues, suggesting that they might be used in non-structural applications, such as interior decoration. |
| first_indexed | 2024-03-08T14:59:54Z |
| format | Article |
| id | doaj.art-fd2df5a710b2439c9cb13b1fcf38f98f |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-08T14:59:54Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-fd2df5a710b2439c9cb13b1fcf38f98f2024-01-10T15:06:41ZengMDPI AGPolymers2073-43602023-12-011615910.3390/polym16010059Sustainable Particleboards Based on Brewer’s Spent GrainsLucia Rossi0Lucia Wechsler1Mercedes A. Peltzer2Emiliano M. Ciannamea3Roxana A. Ruseckaite4Pablo M. Stefani5Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Av. Colón 10850, Mar del Plata B7600FDQ, ArgentinaInstituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Av. Colón 10850, Mar del Plata B7600FDQ, ArgentinaDepartamento de Ciencia y Tecnología, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Quilmes, Roque Sáenz Peña 352, Bernal B1876BXD, ArgentinaInstituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Av. Colón 10850, Mar del Plata B7600FDQ, ArgentinaInstituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Av. Colón 10850, Mar del Plata B7600FDQ, ArgentinaInstituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Mar del Plata (UNMdP), Av. Colón 10850, Mar del Plata B7600FDQ, ArgentinaBrewer’s spent grain (BSG) is the main solid waste generated in beer production and primarily consists of barley malt husks. Based on the active promotion of circular economy practices aimed at recycling food industry by-products, this study assessed for the first time the production of particleboards based on BSG as the sole source of lignocellulosic material and natural adhesive without the use of additives or other substrates. In order to achieve particleboards from entirely sustainable sources, BSG particles have to self-bind by thermo-compression with water. In this context, the aim of this study is to assess the effects of pressing temperatures and particle size on properties such as modulus of elasticity, modulus of rupture, internal bond, thickness swelling, and water absorption. The performance of binderless boards was compared with that of a control panel (control) using BSG combined with phenolic resin. Processing conditions were selected to produce boards with a target density of 1000 kg/m³ and a thickness of 5 mm. To confirm the efficiency of the self-adhesion process, scanning electron microscopy was used to examine the boards. The processes of self-adhesion and particle-to-particle contact were facilitated at a pressing temperature of 170 °C and a particle size range of 200–2380 µm (ground BSG), resulting in improved flexural properties and enhanced water resistance. The properties of BSG-based binderless boards were comparable to those reported for other biomass residues, suggesting that they might be used in non-structural applications, such as interior decoration.https://www.mdpi.com/2073-4360/16/1/59brewer’s spent grainbinderless boardmechanical propertiesphysical propertiesself-adhesion |
| spellingShingle | Lucia Rossi Lucia Wechsler Mercedes A. Peltzer Emiliano M. Ciannamea Roxana A. Ruseckaite Pablo M. Stefani Sustainable Particleboards Based on Brewer’s Spent Grains Polymers brewer’s spent grain binderless board mechanical properties physical properties self-adhesion |
| title | Sustainable Particleboards Based on Brewer’s Spent Grains |
| title_full | Sustainable Particleboards Based on Brewer’s Spent Grains |
| title_fullStr | Sustainable Particleboards Based on Brewer’s Spent Grains |
| title_full_unstemmed | Sustainable Particleboards Based on Brewer’s Spent Grains |
| title_short | Sustainable Particleboards Based on Brewer’s Spent Grains |
| title_sort | sustainable particleboards based on brewer s spent grains |
| topic | brewer’s spent grain binderless board mechanical properties physical properties self-adhesion |
| url | https://www.mdpi.com/2073-4360/16/1/59 |
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