Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells
Crickets are gaining worldwide attention as a nutrient source with a low environmental impact. We considered crickets as a new source of chitin raw material. Chitin isolated from crickets was successfully converted to nanochitin by pulverization. First, chitin was obtained from cricket powder in a 2...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/6/10/280 |
| _version_ | 1797407057151787008 |
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| author | Kana Kishida Toshifumi Mizuta Hironori Izawa Shinsuke Ifuku |
| author_facet | Kana Kishida Toshifumi Mizuta Hironori Izawa Shinsuke Ifuku |
| author_sort | Kana Kishida |
| collection | DOAJ |
| description | Crickets are gaining worldwide attention as a nutrient source with a low environmental impact. We considered crickets as a new source of chitin raw material. Chitin isolated from crickets was successfully converted to nanochitin by pulverization. First, chitin was obtained from cricket powder in a 2.6% yield through a series of chemical treatments. Chitin identification was confirmed by FT-IR and <sup>13</sup>C NMR. The chitin had an α-type crystal structure and a deacetylation degree of 12%. Next, it was pulverized in a disk mill to obtain nanochitin. Cricket nanochitin was of a whisker shape, with an average fiber width of 10.1 nm. It was larger than that of crab shells, while the hydrodynamic diameter and crystal size were smaller. Such differences in shape affected the physical properties of the dispersion. The transmittance was higher than that of crab nanochitin due to the size effect, and the viscosity was smaller. Moreover, the dry non-woven cricket nanochitin sheets were more densely packed, and their modulus and breaking strength were greater. |
| first_indexed | 2024-03-09T03:35:44Z |
| format | Article |
| id | doaj.art-a36786797fa547c4ac5b3d3cd7c6d30e |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-09T03:35:44Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-a36786797fa547c4ac5b3d3cd7c6d30e2023-12-03T14:49:15ZengMDPI AGJournal of Composites Science2504-477X2022-09-0161028010.3390/jcs6100280Preparation of Nanochitin from Crickets and Comparison with That from Crab ShellsKana Kishida0Toshifumi Mizuta1Hironori Izawa2Shinsuke Ifuku3Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, JapanTechnical Department, Tottori University, Tottori 680-8550, JapanGraduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, JapanGraduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8550, JapanCrickets are gaining worldwide attention as a nutrient source with a low environmental impact. We considered crickets as a new source of chitin raw material. Chitin isolated from crickets was successfully converted to nanochitin by pulverization. First, chitin was obtained from cricket powder in a 2.6% yield through a series of chemical treatments. Chitin identification was confirmed by FT-IR and <sup>13</sup>C NMR. The chitin had an α-type crystal structure and a deacetylation degree of 12%. Next, it was pulverized in a disk mill to obtain nanochitin. Cricket nanochitin was of a whisker shape, with an average fiber width of 10.1 nm. It was larger than that of crab shells, while the hydrodynamic diameter and crystal size were smaller. Such differences in shape affected the physical properties of the dispersion. The transmittance was higher than that of crab nanochitin due to the size effect, and the viscosity was smaller. Moreover, the dry non-woven cricket nanochitin sheets were more densely packed, and their modulus and breaking strength were greater.https://www.mdpi.com/2504-477X/6/10/280nanochitincricketnanowhiskerreinforcing materialnanocomposite |
| spellingShingle | Kana Kishida Toshifumi Mizuta Hironori Izawa Shinsuke Ifuku Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells Journal of Composites Science nanochitin cricket nanowhisker reinforcing material nanocomposite |
| title | Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells |
| title_full | Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells |
| title_fullStr | Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells |
| title_full_unstemmed | Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells |
| title_short | Preparation of Nanochitin from Crickets and Comparison with That from Crab Shells |
| title_sort | preparation of nanochitin from crickets and comparison with that from crab shells |
| topic | nanochitin cricket nanowhisker reinforcing material nanocomposite |
| url | https://www.mdpi.com/2504-477X/6/10/280 |
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