scholarly journals Optimizing of Ultrasonic-Assisted Extraction Technology of Total Flavonoids from Bambusae caulis in Taenias Based on Response Surface Methodology

2017 ◽  
Vol 06 (03) ◽  
pp. 63-71
Author(s):  
红梅 管
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Total Flavonoids ◽  
Extraction Technology ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

Optimization of Ultrasonic-Assisted Extraction of Total Saponins from Ophiopholis mirabilis Using Response Surface Methodology

2013 ◽  
Vol 781-784 ◽  
pp. 687-693
Author(s):  
Zhi Yang Shao ◽  
Jin Xia Fu ◽  
Yan Xia Qi ◽  
Qian Cheng Zhao ◽  
Zhi Bo Li
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ethanol Concentration ◽  
Water Bath ◽  
Ultrasonic Power ◽  
Extraction Technology ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

Ultrasonic-Assisted extraction (UAE) was applied for saponins extraction from Ophiopholis mirabilis and response surface methodology (RSM) was used to optimize the extraction technology. A first set of experiments were designed to optimize water bath temperature, ethanol concentration, the ratio of liquid to solid, ultrasonic time (min) and ultrasonic power (W) as the main variables affecting the extraction effect. A Box-Behnken design consisting of 15 experimental runs was then applied and a second-order polynomial model was used to explain the interactions between the main factors and the yield of saponins. The developed mathematical model was found to fit well with the experimental data and the optimized conditions were ultrasonic pretreatment time 30.9 min, ethanol concentration 64%, liquid /solid ratio 35:1, ultrasonic power 300W and water bath 70°C. Corresponding saponins content was 0.574%.

Optimized Ultrasonic-Assisted Extraction by Using Response Surface Methodology and Structural Analysis of Flavonoids from Alliums cepa L. var. agrogatum Don

2013 ◽  
Vol 634-638 ◽  
pp. 1274-1280
Author(s):  
Hai Yue Zhang ◽  
Peng Li
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
High Performance ◽  
Extraction Yield ◽  
Uv Spectrophotometry ◽  
Total Flavonoids ◽  
Resin Column ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

The response surface methodology (RSM) was used to optimize ultrasonic-assisted extraction of total flavonoids from Alliums cepa L. var. agrogatum Don (ACAD). The results indicated that the highest extraction yield of flavonoids by ultrasonic-assisted extraction could obtain to be 3.36% using ethanol concentration of 70% (v/v) as solvent and liquid to solid ratio of 17:1 (mL/g) for 48 min at the temperature of 60 °C. The total flavonoids were purified by AB-8 resin column and polyamide resin column successively. In addition, the maximum absorption wavelength of ACAD flavonoids was determined by UV spectrophotometry, followed by their structural identified and analysis for flavonoids by infrared spectroscopy, high performance liquid chromatography. It could be concluded that the flavonoids of ACAD contains quercetin.

scholarly journals Optimization of ultrasonic-assisted extraction of inulin from Jerusalem artichoke

2019 ◽  
Vol 78 ◽  
pp. 02007
Author(s):  
Lina Yang ◽  
Hongyun Zhang ◽  
Jinghang Huang ◽  
Yafan Zhao ◽  
Danshi Zhu ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Jerusalem Artichoke ◽  
Hot Water ◽  
Ultrasonic Power ◽  
Hot Water Extraction ◽  
Box Behnken Design ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

An efficient ultrasonic-assisted extraction of inulin from Jerusalem artichoke was investigated by Response Surface Methodology (RSM). The results showed that the yield of ultrasonic-assisted extraction was 62.07 ± 0.39% over the microwave (40.85 ± 0.28%) and hot water extraction (27.42 ± 0.42%). The Box-Behnken Design (BBD) was used to optimize the effects of three parameters (temperature-X1, ultrasonic power-X2 and time-X3) on inulin yield. Analysis of variance showed that the contributions of X1, X3, X12, X13, X22 were significant. The optimal yield of inulin was 82.93 ± 1.03% at 82 °, 120 W and 18 min.

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