Preparation and characterization of starch-based composite films reinforced by quinoa (Chenopodium quinoa Willd.) straw cellulose nanocrystals
Copyright © 2023 Elsevier B.V. All rights reserved..
The development of green and biodegradable nanomaterials is significant for the sustainable utilization of renewable lignocellulosic biomass. This work aimed to obtain the cellulose nanocrystals from quinoa straws (QCNCs) by acid hydrolysis. The optimal extraction conditions were investigated by response surface methodology, and the physicochemical properties of QCNCs were evaluated. The maximum yield of QCNCs (36.58 ± 1.42 %) was obtained under the optimal extraction conditions of 60 % (w/w) sulfuric acid concentration, 50 °C reaction temperature, and 130 min reaction time. The characterization results of QCNCs showed that it is a rod-like material with an average length of 190.29 ± 125.25 nm, an average width of 20.34 ± 4.69 nm, excellent crystallinity (83.47 %), good water dispersibility (Zeta potential = -31.34 mV) and thermal stability (over 200 °C). The addition of 4-6 wt% QCNCs could significantly improve the elongation at break and water resistance of high-amylose corn starch films. This study will pave the route for improving the economic value of quinoa straw, and provide relevant proof of QCNCs for the preliminary application in starch-based composite films with the best performance.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:242 |
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| Enthalten in: |
International journal of biological macromolecules - 242(2023), Pt 3 vom: 01. Juli, Seite 124938 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Ren, Haiwei [VerfasserIn] |
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| Links: |
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| Themen: |
059QF0KO0R |
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| Anmerkungen: |
Date Completed 19.06.2023 Date Revised 19.06.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.ijbiomac.2023.124938 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM357125630 |
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| 245 | 1 | 0 | |a Preparation and characterization of starch-based composite films reinforced by quinoa (Chenopodium quinoa Willd.) straw cellulose nanocrystals |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a The development of green and biodegradable nanomaterials is significant for the sustainable utilization of renewable lignocellulosic biomass. This work aimed to obtain the cellulose nanocrystals from quinoa straws (QCNCs) by acid hydrolysis. The optimal extraction conditions were investigated by response surface methodology, and the physicochemical properties of QCNCs were evaluated. The maximum yield of QCNCs (36.58 ± 1.42 %) was obtained under the optimal extraction conditions of 60 % (w/w) sulfuric acid concentration, 50 °C reaction temperature, and 130 min reaction time. The characterization results of QCNCs showed that it is a rod-like material with an average length of 190.29 ± 125.25 nm, an average width of 20.34 ± 4.69 nm, excellent crystallinity (83.47 %), good water dispersibility (Zeta potential = -31.34 mV) and thermal stability (over 200 °C). The addition of 4-6 wt% QCNCs could significantly improve the elongation at break and water resistance of high-amylose corn starch films. This study will pave the route for improving the economic value of quinoa straw, and provide relevant proof of QCNCs for the preliminary application in starch-based composite films with the best performance | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Biodegradable nanomaterials | |
| 650 | 4 | |a Cellulose nanocrystals | |
| 650 | 4 | |a Preparation | |
| 650 | 4 | |a Starch-based film | |
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| 700 | 1 | |a Xu, Zhihang |e verfasserin |4 aut | |
| 700 | 1 | |a Du, Caixia |e verfasserin |4 aut | |
| 700 | 1 | |a Ling, Zhe |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Weixia |e verfasserin |4 aut | |
| 700 | 1 | |a Pan, Lichao |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Yaqin |e verfasserin |4 aut | |
| 700 | 1 | |a Fan, Wenguang |e verfasserin |4 aut | |
| 700 | 1 | |a Zheng, Yi |e verfasserin |4 aut | |
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