scholarly journals Optimum Extraction of Bioactive Alkaloid Compounds from Rhizome Coptidis (Coptis Chinensis Franch.) Using Response Surface Methodology

2013 ◽  
Vol 20 (0) ◽  
pp. 91-104 ◽  
Author(s):  
Hui TENG ◽  
Yonghee CHOI
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Coptis Chinensis ◽  
Optimum Extraction ◽  
Rhizome Coptidis

Optimization of Microwave Extraction Process by Response Surface Methodology of Flavonoids from Tussilago farfara L.

2013 ◽  
Vol 763 ◽  
pp. 246-249
Author(s):  
Xiao Song ◽  
Peng Zhao
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Microwave Power ◽  
Extraction Process ◽  
Raw Material ◽  
Extraction Time ◽  
Microwave Extraction ◽  
Water Solvent ◽  
Tussilago Farfara ◽  
Optimum Extraction

Flavonoids from Tussilago farfara L. was extracted with the assistance of microwave.Box-Behnken design (BBD) was employed to optimize extraction time; microwave power and ratio of water to raw material to obtain a high flavonoids yield.The optimum extraction conditions were as follows: 73.3% ethanol-water solvent, time 16.25 min and ratio of solvent to raw material 36.2ml/g.The yield of flavonoids was 11.37% based on the above mentioned conditions.

Research on Biochemical Materials with Optimization of Microwave Extraction Process by Response Surface Methodology of Flavonoids from Platycarya strobi lacea sieb.et zucc.

2014 ◽  
Vol 1014 ◽  
pp. 61-64
Author(s):  
Xiao Song ◽  
Peng Zhao ◽  
Qing Hua Meng ◽  
Zhi Shu Tang ◽  
Chang Li Wang
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Microwave Power ◽  
Extraction Process ◽  
Raw Material ◽  
Extraction Time ◽  
Microwave Extraction ◽  
Water Solvent ◽  
Optimum Extraction

Flavonoids from Platycarya Strobi lacea Sieb.et Zucc. was extracted with the assistance of microwave.Box-Behnken design (BBD) was employed to optimize extraction time; microwave power and ratio of solvent to raw material to obtain a high flavonoids yield. The optimum extraction conditions were as follows: 65.32% ethanol-water solvent, time 3.96 min and ratio of solvent to raw material 20.8 ml/g.The yield of flavonoids was 3.41% based on the above mentioned conditions.

scholarly journals Optimum extraction Process of polyphenols from the bark of Phyllanthus emblica L. based on the response surface methodology

2009 ◽  
Vol 32 (9) ◽  
pp. 1437-1444 ◽  
Author(s):  
Li Yang ◽  
Jian-Guo Jiang ◽  
Wei-Feng Li ◽  
Jian Chen ◽  
Ding-Yong Wang ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Extraction Process ◽  
Phyllanthus Emblica ◽  
Optimum Extraction

Optimization of Fermentation Conditions of Mead by Response Surface Methodology

2014 ◽  
Vol 881-883 ◽  
pp. 789-792
Author(s):  
Yong Zhang ◽  
Yao Qin Ai ◽  
Qi Wu ◽  
Cong Fa Li ◽  
Wen Xue Chen
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ethanol Concentration ◽  
Ph Value ◽  
Phosphate Concentration ◽  
Diammonium Phosphate ◽  
Fermentation Conditions ◽  
Effects Of Ph ◽  
Optimization Of Fermentation ◽  
Optimum Extraction

The main aim of the present work was to optimize mead production using Response Surface Methodology. The effects of pH (X1:4–6), diammonium phosphate concentration (X2: 90–150g/hL), and temperature(X3: 24–32°C) on mead quality, concerning the final ethanol, was studied. The results showed that regression equation fit well with experimental data and the optimum extraction conditions determined in order to maximize the combined responses were pH value of 6.5, diammonium phosphate concentration of 150g/hL, temperature of 28°C. The mead produced under these conditions had the following characteristics: ethanol concentration of 9.3% and good flavor.

scholarly journals Optimum Parameters for Extracting Three Kinds of Carotenoids from Pepper Leaves by Response Surface Methodology

Separations ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 134
Author(s):  
Nenghui Li ◽  
Jing Li ◽  
Dongxia Ding ◽  
Jianming Xie ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Dry Weight ◽  
Optimum Parameters ◽  
Order Polynomial ◽  
Pepper Leaves ◽  
New Varieties ◽  
Weak Light ◽  
Experimental Values ◽  
Optimum Extraction

To determine the optimum parameters for extracting three carotenoids including zeaxanthin, lutein epoxide, and violaxanthin from pepper leaves by response surface methodology (RSM), a solvent of acetone and ethyl acetate (1:2) was used to extract carotenoids with four independent factors: ultrasound time (20–60 min); ratio of sample to solvent (1:12–1:4); saponification time (10–50 min); and concentration of saponification solution (KOH–methanol) (10–30%). A second-order polynomial model produced a satisfactory fitting of the experimental data with regard to zeaxanthin (R2 = 75.95%, p < 0.0197), lutein epoxide (R2 = 90.24%, p < 0.0001), and violaxanthin (R2 = 73.84%, p < 0.0809) content. The optimum joint extraction conditions of zeaxanthin, lutein epoxide, and violaxanthin were 40 min, 1:8, 32 min, and 20%, respectively. The optimal predicted contents for zeaxanthin (0.823022 µg/g DW), lutein epoxide (4.03684 µg/g dry; DW—dry weight), and violaxanthin (16.1972 µg/g DW) in extraction had little difference with the actual experimental values obtained under the optimum extraction conditions for each response: zeaxanthin (0.8118 µg/g DW), lutein epoxide (3.9497 µg/g DW), and violaxanthin (16.1590 µg/g DW), which provides a theoretical basis and method for cultivating new varieties at low temperatures and weak light resistance.

scholarly journals Polysaccharides and polyphenol in dried Morinda citrifolia fruit tea after different processing conditions: Optimization analysis using response surface methodology

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11507
Author(s):  
Qingfen Wang ◽  
Fei Yang ◽  
Dandan Jia ◽  
Tian Wu
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Maximum Level ◽  
Scientific Basis ◽  
Morinda Citrifolia ◽  
Tea Polysaccharides ◽  
Fruit Powder ◽  
First Time ◽  
Optimum Extraction ◽  
Boiled Water

The increasing popularity of Morinda citrifolia has many medical and health benefits because of its rich polysaccharides (PSC) and polyphenols (PPN). It has become popular to brew the dry M. citrifolia fruit slice as tea in some regions of China. In this study, optimize the extraction parameters of M. citrifolia fruit tea polysaccharides and polyphenols using response surface methodology. The results indicated the highest PSC yield of 17% at 46 °C for 11 min and the ratio of water/M. citrifolia fruit powder was 78 mL/g. The optimum extraction of PPN was at 95 °C for 10 min and the ratio of water/M. citrifolia fruit powder 90 mL/g, with 8.93% yield. Using dry M. citrifolia fruit slices as a tea is reported for the first time. Based on the results, the maximum level of PSC can be obtained under condition by infusing about four dried M. citrifolia fruit slice with average thickness and size in warm boiled water for 11 min, taking a 300 mL cup (300 mL of water) for example. The maximum level of PPN can be obtained by adding three slices of dried M. citrifolia fruit slice to boiled water for 10 min. Considering the powder used in our study, the further pulverization of cutting into powder is more conducive to material precipitation. This study provides a scientific basis for obtaining PSC and PPN from dry M. citrifolia fruit slice tea by brewing.

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