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Enzymatic Treatment and Characterization on Wool Fiber Cuticle
http://hdl.handle.net/10212/2426
http://hdl.handle.net/10212/2426a42c931b-89aa-43d1-8b72-5da7fd6d31d9
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全文 (26.5 MB)
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内容・審査結果の要旨 (182.1 KB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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| 公開日 | 2019-09-17 | |||||||||
| タイトル | ||||||||||
| タイトル | Enzymatic Treatment and Characterization on Wool Fiber Cuticle | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | 酵素処理による羊毛表面改質と特性評価 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
涂, 陳弟
× 涂, 陳弟
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | wool | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | keratinase | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | cuticle | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | disulfide bond | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | protease | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | moisture | |||||||||
| 主題 | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | qmax | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Eco-friendly enzymatic treatment using keratinase is expected to degrade wool surface cuticle instead of traditional chloride treatment The study examined a keratinase from Meiothermus ruber H328 (Keratinase H328) on degrading wool keratin of cuticle. The optimum treatment condition of Keratinase H328 such as incubation time and enzyme concentration was found for wool sliver, yarn and fabric. A subsequent Proteinase K treatment was conducted to enhance the degradation of Keratinase H328 pretreated wool. Due to the hydrophilization of wool surface after removing cuticle with lipid layer, a method was introduced to resume the hydrophobic surface for wool fabric. The wool samples after various treatments were characterized by physicochemical method, KES-F surface, mechanical and thermal tests. Results showed Keratinase H328 eroded wool scale slightly and did little change on wool’s mechanical properties. Keratinase H328 mixture rather than Proteinase K can degrade the disulfide bonds in wool keratin. Combined Kerainase H328-Proteinase K treatment more considerably damaged wool cuticle than pure keratinase or protease treatment. An obvious increase of moisture regain was observed in enzyme treated sample, while maximum increase was found in combined enzymatic treatment, which could relate to the degree of damage on fiber surface. Larger qmax (the maximum heat flux) values were achieved in samples with higher moisture regain, suggesting the qmax is potential to characterize the enzymatic treatment. Furthermore, qmax was verified to relate the fabric surface properties such as surface roughness and fuzz. Besides, the grafting of poly (acrylic acid) and dodecyl amine transferred the hydrophilicity of scale-damaged wool surface into hydrophobicity. This study introduces a specific enzymatic treatment on wool using keratinase, a damage repair method and their characterization. It will support the mechanistic study of keratinase activity, and process improvement of keratinase treatment to minimize the harsh hard, stimuli perception of prickle and itch, and shrinking. | |||||||||
| 言語 | en | |||||||||
| 日付 | ||||||||||
| 日付 | 2017-09-25 | |||||||||
| 日付タイプ | Issued | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第850号 | |||||||||
| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（学術） | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2017-09-25 | |||||||||
| 学位授与機関 | ||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||
| 学位授与機関識別子 | 14303 | |||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 京都工芸繊維大学 | |||||||||
