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Rhamnolipids

鼠李糖脂

公司名称: Sigma-Aldrich
产品编号: R90
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Procedure for Rhamnolipids Quantification Using Methylene-Blue
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2016-04-05
[Abstract]  Rhamnolipids produced by Pseudomonas aeruginosa (P. aeruginosa) represent a group of biosurfactants with various applications (e.g., bioremediation of oil spills, cosmetics, detergents and cleaners). The commonly used colorimetric methods for rhamnolipid quantification, including anthrone, phenol−sulfuric acid and orcinol based quantification (Helbert and Brown, 1957; Chandrasekaran and BeMiller, 1980), are laborious and operationally hazardous because of the strong acid/chemical emanation which can cause deterioration of instruments measurements (e.g., ... [摘要]  由绿脓杆菌(铜绿假单胞菌)产生的鼠李糖脂代表一组具有各种应用的生物表面活性剂(例如生物修复的溢油,化妆品,洗涤剂和清洁剂)。常用的鼠李糖脂定量的比色方法,包括蒽酮,苯酚 - 硫酸和基于苔藓醇的定量(Helbert和Brown,1957; Chandrasekaran和BeMiller,1980)是费力和操作上危险的,因为强酸/化学散发仪器测量的恶化(例如分光光度计)。因此,基于亚甲蓝的分析显示为基于化学络合反应安全定量整个鼠李糖脂分子的有希望的替代物(Pinzon和Ju,2009)。事实上,亚甲基蓝和鼠李糖脂在水 - 氯仿相系统中形成复合物。将鼠李糖脂 - 亚甲基蓝复合物分配到氯仿相中,其将形成蓝色,其可以在638nm下定量以推断鼠李糖脂浓度。在这里,我们描述基于亚甲基蓝的鼠李糖脂定量程序的变体,允许在标准96孔塑料微量滴定板相反的原始亚甲蓝程序,由于氯仿化学属性需要特定和昂贵的微孔板分光光度定量。

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