Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone
The potential use of elm wood in lignocellulosic industries has been hindered by the Dutch elm disease (DED) pandemics, which have ravaged European and North American elm groves in the last century. However, the selection of DED-resistant cultivars paves the way for their use as feedstock in lignoce...
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MDPI AG
2020-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/11/2450 |
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| author | Laura Jiménez-López María E. Eugenio David Ibarra Margarita Darder Juan A. Martín Raquel Martín-Sampedro |
| author_facet | Laura Jiménez-López María E. Eugenio David Ibarra Margarita Darder Juan A. Martín Raquel Martín-Sampedro |
| author_sort | Laura Jiménez-López |
| collection | DOAJ |
| description | The potential use of elm wood in lignocellulosic industries has been hindered by the Dutch elm disease (DED) pandemics, which have ravaged European and North American elm groves in the last century. However, the selection of DED-resistant cultivars paves the way for their use as feedstock in lignocellulosic biorefineries. Here, the production of cellulose nanofibers from the resistant <i>Ulmus minor</i> clone Ademuz was evaluated for the first time. Both mechanical (PFI refining) and chemical (TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation) pretreatments were assessed prior to microfluidization, observing not only easier fibrillation but also better optical and barrier properties for elm nanopapers compared to eucalyptus ones (used as reference). Furthermore, mechanically pretreated samples showed higher strength for elm nanopapers. Although lower nanofibrillation yields were obtained by mechanical pretreatment, nanofibers showed higher thermal, mechanical and barrier properties, compared to TEMPO-oxidized nanofibers. Furthermore, lignin-containing elm nanofibers presented the most promising characteristics, with slightly lower transparencies. |
| first_indexed | 2024-03-10T15:23:43Z |
| format | Article |
| id | doaj.art-7835cedbeec64450b283bea1e2d3dd01 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T15:23:43Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7835cedbeec64450b283bea1e2d3dd012023-11-20T18:14:21ZengMDPI AGPolymers2073-43602020-10-011211245010.3390/polym12112450Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> CloneLaura Jiménez-López0María E. Eugenio1David Ibarra2Margarita Darder3Juan A. Martín4Raquel Martín-Sampedro5Forestry products Department, Forest Research Centre, INIA, Ctra de la Coruña Km 7.5, 28040 Madrid, SpainForestry products Department, Forest Research Centre, INIA, Ctra de la Coruña Km 7.5, 28040 Madrid, SpainForestry products Department, Forest Research Centre, INIA, Ctra de la Coruña Km 7.5, 28040 Madrid, SpainInstituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, SpainDepartamento de Sistemas y Recursos Naturales, ETSI Montes, Forestal y del Medio Natural, Universidad Politécnica de Madrid, c. José Antonio Novais 10, 28040 Madrid, SpainForestry products Department, Forest Research Centre, INIA, Ctra de la Coruña Km 7.5, 28040 Madrid, SpainThe potential use of elm wood in lignocellulosic industries has been hindered by the Dutch elm disease (DED) pandemics, which have ravaged European and North American elm groves in the last century. However, the selection of DED-resistant cultivars paves the way for their use as feedstock in lignocellulosic biorefineries. Here, the production of cellulose nanofibers from the resistant <i>Ulmus minor</i> clone Ademuz was evaluated for the first time. Both mechanical (PFI refining) and chemical (TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-mediated oxidation) pretreatments were assessed prior to microfluidization, observing not only easier fibrillation but also better optical and barrier properties for elm nanopapers compared to eucalyptus ones (used as reference). Furthermore, mechanically pretreated samples showed higher strength for elm nanopapers. Although lower nanofibrillation yields were obtained by mechanical pretreatment, nanofibers showed higher thermal, mechanical and barrier properties, compared to TEMPO-oxidized nanofibers. Furthermore, lignin-containing elm nanofibers presented the most promising characteristics, with slightly lower transparencies.https://www.mdpi.com/2073-4360/12/11/2450<i>Ulmus minor</i>cellulose nanofibersTEMPO-mediated oxidation pretreatmentmechanical pretreatmentresidual lignin |
| spellingShingle | Laura Jiménez-López María E. Eugenio David Ibarra Margarita Darder Juan A. Martín Raquel Martín-Sampedro Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone Polymers <i>Ulmus minor</i> cellulose nanofibers TEMPO-mediated oxidation pretreatment mechanical pretreatment residual lignin |
| title | Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone |
| title_full | Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone |
| title_fullStr | Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone |
| title_full_unstemmed | Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone |
| title_short | Cellulose Nanofibers from a Dutch Elm Disease-Resistant <i>Ulmus minor</i> Clone |
| title_sort | cellulose nanofibers from a dutch elm disease resistant i ulmus minor i clone |
| topic | <i>Ulmus minor</i> cellulose nanofibers TEMPO-mediated oxidation pretreatment mechanical pretreatment residual lignin |
| url | https://www.mdpi.com/2073-4360/12/11/2450 |
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