刊物名(原文):Biochemical
Engineering Journal
刊物名(中文):生物化學(xué)工程學(xué)報
刊物國別:
發(fā)表時間(原文):2015,101:44–54
發(fā)表時間(中文):發(fā)表于2015年101期44-54頁
刊物類型(EI/SCI/SSCI),級別:SCI影響因子2.45分類二區(qū)
論文題目(原文):Rhamnolipid production
from waste cooking oil using Pseudomonas SWP-4
論文題目(中文):Pseudomonas SWP-4菌株轉(zhuǎn)化餐廚廢油生產(chǎn)鼠李糖脂
論文作者(原文):Guihong Lan, Qiang Fan, Yongqiang Liu, Chao
Chen,Guixiang Li , Yu Liu, Xiaobo Yin
論文作者(中文):蘭貴紅,范強,劉永強,陳超,李桂香,劉余,尹小波
論文摘要(原文):The present work aims to produce rhamnolipid from waste cooking oil
(WCO) using a newly isolated bacterium named Pseudomonas SWP-4. SWP-4 was a high-yield strain that could
accumulate rhamnolipid steadily even in decline phase and gave a maximum
rhamnolipid yield of 13.93 g/L and WCO utilization percent around 88%. The
critical micelle concentration of the produced rhamnolipid was only 27 mg/L and
its emulsification index against n-hexadecane reached
around 59%. Moreover, it reduced the surface tension of water from 71.8 mN/m to
24.1 mN/m and the interfacial tension against n-hexadecane from 29.4 mN/m to 0.9 mN/m. Results of biosurfactant
stability show the rhamnolipid was effective when the salinity was lower than
8% and pH value ranged from 4 to 10, and it was quite thermostable based on
thermal gravity analysis. Furthermore, it maintained high surface activity even
after incubation under extreme conditions i.e., pH of 4.0, salinity of 8% and temperature of 80 ?C for half a month. Based on free fatty acids
metabolism analysis, Pseudomonas SWP-4 consumed palmitic acid, oleic acid and linoleic acid chiefly. All
these characteristics demonstrate bioconversion and biodegradation of WCO by Pseudomonas SWP-4 is a promising
and commercial way of rhamnolipid production and waste treatment.
論文摘要(中文):本研究利用Pseudomonas SWP-4菌株轉(zhuǎn)化餐廚廢油生產(chǎn)鼠李糖脂,優(yōu)化后其最佳產(chǎn)率為13.93g/L,餐廚廢油的轉(zhuǎn)化率為88%;產(chǎn)物的臨界膠束濃度(CMC)為27mg/L,乳化n-十六烷乳化率為59%。對水體的表面張力從71.8mN/m降低至24.1mN/m。結(jié)果顯示產(chǎn)物有廣泛的耐鹽性,耐溫性,基本不受溫度、pH值與鹽濃度影響。
對應(yīng)開放實驗題名:生物轉(zhuǎn)化餐廚廢油產(chǎn)鼠李糖脂假單胞菌株的分離與代謝機理
對應(yīng)開放實驗編號:KSZ14094
另附刊出的論文PDF