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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/78153

    Title: 利用Cupriavidus necator轉化農業廢棄物中的木質素為香草酸之研究;Converting Ligin from Agricultural Wastes into Vanillic Acid by Cupriavidus Necator
    Authors: 徐敬衡
    Contributors: 國立中央大學化學工程與材料工程學系
    Keywords: 農業廢棄物;木質素;香草酸;鉤蟲貪銅菌;Agricultural waste;lignin;vanillic acid;Cupriavidus necator
    Date: 2018-12-19
    Issue Date: 2018-12-20 10:58:24 (UTC+8)
    Publisher: 科技部
    Abstract: 現今能源匱乏、環境汙染、溫室效應等問題日益嚴重的世代,以及大眾環境保護意識的提高,致使人們對可持續能源和再生材料產生濃厚的興趣,在這樣的背景下開始關注生物質。使用玉米杆、麥稈、稻草、木屑等富含的木質纖維素(Lignocellulose)的農業廢棄物,其優勢是不與糧食競爭,且創造農業廢棄物的利用機會並提高附加價值。木質纖維素當中還有大量的纖維素、半纖維素及木質素,其中通常都被稱為“廢棄物”而被丟棄的木質素,其實是一具有苯基丙烷單元體(phenyl propane unit)所組成的芳香族大分子團,來源於三種芳香醇前體為對-香豆醇(p-coumaryl alcohol)、松柏醇(coniferyl alcohol)及芥子醇(sinapyl alcohol),被視為最重要的可再生芳香化合物的來源,木質素需要先從木質纖維素當中做提取的動作,接者再利用化學方法來解聚,把複雜大分子團打斷變成小分子,雖然可以從中獲得具有價值性的化合物,但利用化學方法需要的成本高,而且需要在高溫高壓下進行反應,對於環境來說是不友善的。本研究在於提取出來的木質素,利用生物合成方法來產出有價值的化合物,即是利用尋找適合的微生物來降解木質素,勁而轉換出可利用且含有高價值的化學品之開發。 ;Nowadays, with the problems of energy shortage, environmental pollution and the greenhouse effect getting worse day by day, as well as the rising awareness of environmental protection in the general public, resulting in a strong interest in sustainable energy and renewable materials. Agricultural waste of lignocellulose has the advantage to not competing with food and creating opportunities for agricultural waste utilization and increasing added value. Among them, lignocellulose contains a lot of cellulose, hemicellulose and lignin, which lignin is usually regarded as "waste" and throw out. Lignin is considered to be the most important source of renewable aromatic compounds. The present study focuses on the extraction of lignin and the use of biosynthetic methods to produce valuable compounds by exploiting the development of suitable microorganisms to degrade lignin and then convert available and high-value chemicals.
    Relation: 財團法人國家實驗研究院科技政策研究與資訊中心
    Appears in Collections:[化學工程與材料工程學系 ] 研究計畫

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