查詢結果分析
相關文獻
- Effects of Substrate Induction and Added Carbon Source on Phenol Degradation by Pseudomonas putida
- IS1403 and IS1404: Analysis and Distribution of Two New Insertion Sequences in Xanthomonas campestris
- Shanghai Fever, a Syndrome Caused by Pseudomonas Aeruginosa, Complicated with Ecthyma Gangrenosum: A Case Report
- Pseudomonas alcaligenes脂肪酶(LipA)純化與特性分析
頁籤選單縮合
題 名 | Effects of Substrate Induction and Added Carbon Source on Phenol Degradation by Pseudomonas putida=基質誘導及添加碳源對酚生物降解之影響 |
---|---|
作 者 | 鍾翠萍; 劉威廷; 莊瑞鑫; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 35:4 2004.07[民93.07] |
頁 次 | 頁409-416 |
分類號 | 460.02 |
關鍵詞 | 基質誘導; 添加碳源; 酚生物降解; 假單孢菌; Phenol degradation; Pesudomonas puitda; Substrate induction; Added carbon source; |
語 文 | 英文(English) |
中文摘要 | 本論文使用假單孢菌(Pseudomonas putida CCRC14365)降解有機污染物酚,先找出其生長曲線五個不同時期(遲滯期、指數期、後指數期、靜止期及死亡期),再分期收集細胞作實驗,計算個別的比生長速率及比降解速率。實驗結果發現,用濃度100 mg·L¯¹酚作誘導前處理的細胞,能在18到26小時內完全降解100 mg·L¯¹的酚;而未經誘導的細胞則需耗時23到33小時。再者,在這兩種不同的誘導條件下,後指數期細胞均表現出最好的降解效率。相對於未受誘導前處理的細胞,經誘導前處理的細胞雖然比生長速率較大,但比降解速率卻較小。也就是說,經過基質誘導的細菌雖然其降解活性稍差,但能長出較大量的菌體來加強生物降解效能。最後,為了讓未經誘導前處理的菌體能產生較大量的高降解活性細胞,本文亦探討添加碳源(葡萄糖)後所能達到抵銷酚毒性效應的成效。 |
英文摘要 | The specific growth rates of Pseudomonas putida CCRC14365 abstracted from five different phases (lag, log, late-exponential, stationary, and death), along with its specific rates of phenol degradation, were determined. It was found that cells induced with 100 mg·L¯¹ of phenol could completely degrade phenol (100 mg·L¯¹) within 18 to 26 h, but that it could be degraded within 23 to 33 h when non-induced cultures were used. In addition, cells harvested from the late-exponential phase were the most effective ones for achieving complete consumption of phenol in both adaptation cases. In contrast to non-induced cells, induced cells, induced cells had lower specific degradation rates for phenol although their specific growth rates were higher. In other words, the substrate-induced cells produced more biomass that enhanced degratation efficiency although they exhibited a lower degradation activity. To offset the toxicity of phenol and the production of more active cells, the effect of an added carbon source, glucose, on phenol degradation was finally investigated using non-induced cells. |
本系統中英文摘要資訊取自各篇刊載內容。