synergistic extraction
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Chemosphere ◽  
2021 ◽  
pp. 133052
Author(s):  
Yonghui Song ◽  
Yifan Li ◽  
Xihong He ◽  
Xinhui Zeng ◽  
Min Zhou ◽  
...  

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Qiuzhe Li ◽  
Xiaoqing Li ◽  
Baodong Zheng ◽  
Chao Zhao

AbstractLotus (Nelumbo nucifera Gaertn), a kind of perennial aquatic plant, is widely cultivated and consumed by people in Asian countries. Lotus plumule flavonoids (LPF) have been recognized as a hypoglycemic agent. LPF was optimally obtained using novel ultrasonic-microwave assisted synergistic extraction (UMSE) method by response surface methodology (RSM) on the basis of the results of single-factor experiments. Furthermore, the hypoglycemic activity of LPF was investigated by measuring the body weight, fasting blood glucose (FBG) level, and oral glucose tolerance test (OGTT) and analyzing the physiological indexes in streptozotocin-diabetic mice model. The optimum extraction conditions consisted of microwave power 355 W, ultrasonic power 423 W, extraction time 15 min, solid-liquid ratio 1:40, ultrasound/interval time 1/0, and ethanol concentration 70% with the maximum LPF yield of 2.62%. LPF supplementation significantly decreased the body weight, FBG, OGTT, serum total cholesterol (TC), serum total triglycerides (TG), and insulin levels, indicating the antidiabetic activity of LPF. This research verified that the UMSE technique was highly efficient to extract LPF to the maximum extent and the flavonoids from L. plumule exhibited hypoglycemic activity, which showed broad development and application prospects.


2021 ◽  
Vol 8 (20) ◽  
pp. 4488-4496
Author(s):  
Tyler L. King ◽  
Orhi Esarte Palomero ◽  
Dawson A. Grimes ◽  
Sean T. Goralski ◽  
Richard A. Jones ◽  
...  

Extraction of metal ions into perfluorocarbon solvent with a fluorinated acac ligand is described as well as synergistic extraction with neutral nitrogen donor ligands. Applications include catalysis, nuclear fuels reprocessing, and medical imaging.


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