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Antibacterial properties of crude extract from rhubarb and its major bioactive compounds against Aeromonas hydrophila were assayed. Major bioactive compounds (anthraquinone derivatives) in rhubarb collected from different cultivation areas were determined by ultra-performance liquid chromatography (UPLC); the antibacterial activity [minimum inhibitory concentration (MIC)] of rhubarb was positively...
Ionic liquid-based ultrasonic/microwave-assisted extraction (IL-UMAE) of five anthraquinones (physcion, chrysophanol, emodin, rhein, and aloe-emodin) from rhubarb was first studied. Several parameters of UMAE were optimized, and the results were compared with of the heat-reflux extraction (HRE), ultrasound, and microwave-assisted extraction (MAE and UAE). The optimal UMAE conditions were as follows:...
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