醣類對於厭氧醱酵產氫的影響

Effect of Carbohydrates on Hydrogen Production by Anaerobic Fermentation

陳子宇(Tzu-Yu Chen)

指導教授 ： 許垤棊

大同大學/工程學院/生物工程學系所/碩士(2007年)

摘要

氫氣是一種乾淨無汙染的能源，也是一種可再生的能源。利用醣類的厭氧醱酵產氫，可經由丁酸/醋酸醱酵以及酒精/醋酸醱酵產生氫氣，許多先前的研究利用工業廢水或食品廢水甚至畜牧廢水，來評估其中微生物的產氫能力。本研究利用乳牛糞作為堆肥，利用堆肥中的耐熱微生物，來測試三種醣類進行厭氧醱酵產氫的能力，結果發現微生物對於單一醣類醱酵產氣的利用能力較差，而混和葡萄糖、蔗糖或木糖醣的醱酵產氫的能力最好，在pH 4.0-4.5時產氫最多。同時，在醱酵培養液當中可分析出少量的醋酸、酒精、丁醇等物質。

關鍵字

厭氧醱酵 ； 生物產氫 ； 堆肥

並列摘要

Hydrogen is a clean energy carrier and may be made from renewable resources. Hydrogen can be produced through the butyrate/acetate or ethanol/acetate fermentation. Past researches have been carried out to identify the microbial communities from industry, food and agriculture wastewaters, which present in mixed culture and used for hydrogen production. In the present study, production of hydrogen through batch fermentation with the boiled compost of cow manure as an inoculum. Three carbohydrates including glucose, sucrose and xylose served as substrates for anaerobic fermentation to produce hydrogen. The results indicate that efficient production of hydrogen is not obtained with sole carbohydrate as substrate. The culture using mixed carbohydrates as substrates has enhanced hydrogen production under the condition at pH 4.0-4.5, Meanwhile, small amounts of acetate, ethanol and butanol were accumulated in the culture broth.

並列關鍵字

anaerobic fermentation ； biohydrogen ； compost

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