Study on Extraction of Dioscin from D.zingiberensis

2011 ◽  
Vol 189-193 ◽  
pp. 863-866
Author(s):  
Xiang Li ◽  
Jian Zhong Ma ◽  
Jing Xia
Keyword(s):  
Volume Fraction ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Extraction Time ◽  
Ultrasonic Frequency ◽  
Liquid Ratio ◽  
Ethanol Extraction ◽  
Ultrasonic Assisted ◽  
Solid Liquid

The effects of extraction conditions on Extraction of Dioscin from D.zingiberensis was studied in this paper. It was shown that when the ultrasonic frequency was 35.74KHz, solid-liquid ratio(D.zingiberensis:ethanol)was 1:10, ethanol volume fraction was 75%, and extracted for 30 minutes and for 3 times, the extraction rate of dioscin from D.zingiberensis reached the highest. The method of ultrasonic-assisted ethanol extraction can not only cut down extraction time, but also increase extraction yield.

Ultrasonic-Assisted Extraction and Antibacterial Properties of Polyphenols of Sweet Corncob

2014 ◽  
Vol 1028 ◽  
pp. 374-379
Author(s):  
Xin Wang ◽  
Li Ping Xu
Keyword(s):  
Volume Fraction ◽  
Orthogonal Experiment ◽  
Antibacterial Properties ◽  
Methanol Concentration ◽  
Extraction Time ◽  
Liquid Ratio ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Solid Liquid ◽  
Ultrasound Power

This paper reported the extraction conditions of polyphenols compounds by ultrasonic wave and its bacteriostasis from sweet corncob. The yield of Polyphenol was selected as the index which determined by the Folin-Ciocalteu assay, single factor experiment and orthogonal experiment of ultrasound power, the extraction time, the methanol concentration (volume fraction) and solid-liquid ratio had been taken out. The result of orthogonal experiment showed that the best ultrasound power, the extraction time, the methanol concentration (volume fraction) and solid-liquid ratio were 520W, 20min, 1:10 (g/mL) and 80%, respectively. Calculation showed that the yield of Polyphenols up to 2.85%.The extract of Polyphenols from sweet corncob showed that it had bacteriostasis to EscherichiaColi,BacillusSubtilisandStaphylococcusAlbus.

Study on Ultrasonic Assisted - Precipitation Method Combined Purification of Tea Saponin

2013 ◽  
Vol 634-638 ◽  
pp. 1552-1556 ◽  
Author(s):  
Yu Qiong Wu ◽  
Wei Dong Man
Keyword(s):  
Ethanol Concentration ◽  
Extraction Time ◽  
Precipitation Method ◽  
Optimum Operating ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Tea Saponin ◽  
Ultrasonic Assisted ◽  
Solid Liquid

Commercial crude tea saponin as raw material, ultrasonic assisted extraction technology of tea saponin was investigated. Five influence factors of ethanol concentration, extraction temperature, extraction time, solid-liquid ratio, ultrasonic power on the extraction of tea saponin were studied in detail. Orthogonal experiment through the single factor experiment design, the experimental results show that the optimum operating conditions for the ethanol concentration of 80%, solid-liquid ratio 1: 40, extraction temperature 40°C, ultrasonic power of 300W, ultrasonic extraction time 45 minutes. Under the optimum conditions obtained tea saponin extract with ethanol- acetone precipitation method is further purified, tea saponin content increased from 52.1% to 93.6%. The result indicated that the purity of the tea saponin could be effectively improved through the ultrasonic assisted- precipitation combined method.

scholarly journals Optimisation of ultrasonic-assisted protein extraction from brewer’s spent grain

2010 ◽  
Vol 28 (No. 1) ◽  
pp. 9-17 ◽  
Author(s):  
D.-S. Tang ◽  
Y.-J. Tian ◽  
Y.-Z. He ◽  
L. Li ◽  
S.-Q. Hu ◽  
...  
Keyword(s):  
Protein Extraction ◽  
Response Surfaces ◽  
Protein Yield ◽  
Extraction Time ◽  
Ultrasonic Power ◽  
Liquid Ratio ◽  
Brewer’S Spent Grain ◽  
Ultrasonic Assisted ◽  
Spent Grain ◽  
Solid Liquid

Response surface methodology was employed to optimise the ultrasonic-assisted extraction of protein from brewer’s spent grain. Three variables, namely the extraction time (min), ultrasonic power (W/100 ml of extractant), and solid-liquid ratio (g/100 ml) were investigated. Optimal conditions were determined and tri-dimensional response surfaces were plotted using mathematical models. The ANOVA analysis indicated that all the quantities determined, i.e. the extraction time, ultrasonic power, and solid-liquid ratio, had significant positive linear and negative quadratic effects on the protein yield. Optimum conditions for the extraction of protein were found to be: the extraction time of 81.4 min, ultrasonic power of 88.2 W/100 ml of extractant, and solid-liquid ratio of 2.0 g/100 ml. The optimal predicted protein yield obtained was 104.2 mg/g BSG while the experimental yield of protein was in agreement with the predicted value.

scholarly journals Ultrasonic-assisted extraction of gallic acid and isoquercetin from aspergillus niger fermented tri-phala waste

2018 ◽  
Vol 192 ◽  
pp. 03007
Author(s):  
Teerin Chysirichote ◽  
Pattarabhorn Pakaweerachat
Keyword(s):  
Aspergillus Niger ◽  
Gallic Acid ◽  
Extraction Yield ◽  
Deionized Water ◽  
Water Extraction ◽  
Extraction Time ◽  
Ultrasonic Frequency ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

The Aspergillus niger fermented Tri-phala waste (FTW) was extracted with ultrasonic assisted extraction (UAE) using deionized water as an extraction medium at 30°C. The 40 kHz ultrasonic frequency was used for sonicate the FTW immerged in the water at the ratio of 1 : 100 for 10, 20, 30, 40, 50 and 60 min. The contents of gallic acid, isoquercetin obtained after extraction were measured by HPLC. The extraction yields of gallic acid and isoquercetin were compared with the yields from the water extraction without ultrasonic assistance (control condition). The results showed that using the ultrasonic assistance increased the extraction yield of gallic acid from 0.25±0.03 to 1.26±0.25 g.g-1 with the shorter extraction time from 60 min to 30 min. Moreover, isoquercetin extraction yield increased from 0.17±0.02 to 0.41±0.04 g.g-1 with the shorter extraction time from 60 min to 20 min.

Optimization of the Water Extraction Technology of Flavonoids in Emilia Sonchifolia (Linn.) DC

2013 ◽  
Vol 634-638 ◽  
pp. 1016-1021
Author(s):  
Li Sheng Wang ◽  
Wei Wang ◽  
Yan Ge ◽  
Jiangtao Tang
Keyword(s):  
Extraction Yield ◽  
Water Extraction ◽  
Extraction Time ◽  
Single Factor ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Orthogonal Experiments ◽  
Solid Liquid

Single factor experiments and orthogonal experiments were successively carried out to optimize the water extraction technology of flavonoids in Emilia sonchifolia (Linn.) DC. The results showed that the influential order of factors was extraction times >solid-liquid ratio >extraction time. The optimum conditions were 15:1 of solid-liquid ratio, 2h of the extraction time and 3 of the extraction times. Under these conditions, the extraction yield of flavonoids from Emilia sonchifolia (Linn.) DC was 3.35%.

scholarly journals Efficient Extraction of Anti-Inflammatory Active Ingredients from Schefflera octophylla Leaves Using Ionic Liquid-Based Ultrasonic-Assisted Extraction Coupled with HPLC

Molecules ◽  
2019 ◽  
Vol 24 (16) ◽  
pp. 2942 ◽  
Author(s):  
Xuqiang Liu ◽  
Yun Niu ◽  
Jieqing Liu ◽  
Mengjun Shi ◽  
Ruian Xu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Optimal Conditions ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Efficient Extraction ◽  
Ultrasonic Assisted Extraction ◽  
Anti Inflammatory ◽  
Solid Liquid

Schefflera octophylla (Lour.) Harms, a kind of traditional Chinese medicine (TCM), is commonly used for anti-inflammatory, analgesic, rheumatism, fever, and hemostasis therapy. In our previous studies, two major triterpenoids were isolated and identified from leaves of S. octophylla, and evaluated for their inhibitory effects on lipopolysaccharide (LPS)-induced nitric oxide production in RAW264.7 cells; both of them displayed significant anti-inflammatory activities at their noncytotoxic concentrations. Therefore, it is very useful to establish an efficient and green extraction method to isolated the two major triterpenoids from leaves of S. octophylla. In this paper, ionic liquid based ultrasonic-assisted extraction (ILUAE) was successfully applied to extract the two major triterpenoids from leaves of S. octophylla. Four single factors (ionic liquids (ILs) concentration, solid–liquid ratio, centrifugal speed, mesh number), with a greater impact on extraction rate, were selected from a variety of influencing factors, and the optimal conditions were obtained by Box–Behnken response surface methodology (RSM). Under optimal conditions, the total extraction yield and extraction rate of two triterpenoids were 288.03 mg/g and 28.80%, respectively, which was 6.80% higher than that of 70% Ethanol (220 mg/g and 22%, respectively).

Effect of Ethanol Treatment on Lycopene Extraction yield

2018 ◽  
Author(s):  
Nam Kyong-il ◽  
KIM rak-chon ◽  
Kang chang-hyok ◽  
Lee song-nam ◽  
Ryom sok-hun
Keyword(s):  
Antioxidant Activity ◽  
Treatment Time ◽  
Extraction Yield ◽  
Extraction Rate ◽  
Test Results ◽  
Ethanol Treatment ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Pretreatment Method ◽  
Ethanol Pretreatment

In order to extract lycopene more effectively, this experiment focused on the optimization of ethanol pretreatment method to study the effects of ethanol treatment on the extraction rate of lycopene and its antioxidant activity. The test results show that 2 times ethanol treatment is very effective for improving lycopene yield. The optimum conditions of ethanol treatment are temperature 50 ℃, treatment time 1 time 2h, 2 times 2h, solid to liquid ratio is 1:12. The lycopene yield can be reached 20mg / 100g above.

Ultrasonic Extraction Chuanxiong Polysaccharide of Influencing Factors

2012 ◽  
Vol 550-553 ◽  
pp. 1071-1075
Author(s):  
Yong Guang Bi ◽  
Chun Chun Liu
Keyword(s):  
Influencing Factors ◽  
Extraction Process ◽  
Extraction Rate ◽  
Ultrasonic Extraction ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Ultrasonic Time ◽  
Solid Liquid

In order to study the the Chuanxiong polysaccharide ultrasonic extraction process, examine the ultrasonic time, ultrasonic power, solid-liquid ratio and extraction temperature on the Chuanxiong polysaccharide extract rate. The results show that the role of time at 30min Polysaccharide better, the extraction rate is 26.63%. when the ultrasonic power is 320W, Polysaccharide extraction rate is 26.15%.When the solid-liquid ratio is 1:20, polysaccharide extraction rate is 27.73%. When the extraction temperature is 60°C, the polysaccharide extraction rate is 27.73%.

Optimization of Pectin Extraction from Ramie by Orthogonal Methodology and Its Partial Physicochemical Properties

2019 ◽  
Vol 11 (11) ◽  
pp. 1607-1611
Author(s):  
Lifeng Cheng ◽  
Shengwen Duan ◽  
Xiangyuan Feng ◽  
Ke Zheng ◽  
Qi Yang ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Orthogonal Experiment ◽  
Ammonium Oxalate ◽  
Scientific Basis ◽  
Extraction Time ◽  
Single Element ◽  
Extraction Temperature ◽  
Optimal Conditions ◽  
Liquid Ratio ◽  
Solid Liquid

Pectin was extracted from Ramie [Boehmeria nivea (L.) Gaud] through ammonium oxalate extraction method. The influences of single factors (ammonium oxalate concentration, extraction time, solid–liquid ratio, and reaction temperature) on the yield of ramie pectin were studied. Orthogonal experiment was then performed to optimize the combination of the given conditions using pectin yield as the measuring indicator. Finally, the partial physicochemical properties of ramie pectin extracted in the optimal conditions were analyzed. Results showed that the optimal conditions for single-element experiment were 3.5 h (extraction time), 1:25 (solid–liquid ratio), 0.85% (concentration of ammonium oxalate) and 95 °C (extraction temperature), and that the optimal combination conditions for orthogonal experiment was 4 h, 1:30, 0.95% and 90 °C. The ramie pectin yield extracted in optimal conditions reached 15.81%, and its protein content, galacturonic acid content, and esterification degree were 0.659 mg/g, 49.92%, and 53.11%, respectively. Therefore, the proposed method was successfully applied to obtain ramie pectin and may provide scientific basis for improving the multi-utilization value of ramie.

Optimization of Extracting Condition of Active Components in Perilla by Ultrasonic

2014 ◽  
Vol 1033-1034 ◽  
pp. 713-716
Author(s):  
Dan Huang ◽  
You Qing Liu ◽  
Yuan Liang ◽  
Xiang Mao
Keyword(s):  
Rosmarinic Acid ◽  
Extraction Rate ◽  
Ultrasonic Power ◽  
Single Factor ◽  
Liquid Ratio ◽  
Active Components ◽  
Extraction Technology ◽  
Extraction Solvent ◽  
Solid Liquid ◽  
Temperature Time

Using ultrasonic-extraction technology, the condition of extracting the active compounds-flavonoids and rosmarinic acid ofPerillawas studied. The effects of four main factors include ultrasonic power, temperature, time and solid-liquid ratio on the extraction-rate of the flavonoids and the rosmarinic acid ofPerillawere reviewed by single factor experiments,and the flavonoids and the rosmarinic acid was determined by NaNO2-Al (NO3)3-NaOH method and FeSO4method. On the base of single factor experiments, the extraction technique was optimized in the orthogonal test. The result showed that temperature was the most important factor in the influencing factors on the extraction-rate. The subsequence of importance was temperature > time > solid-liquid ratio > ultrasonic. The optimal extraction conditions were: extraction solvent 3%borax, solid-liquid ratio 1:50(w/v), ultrasonic power 300W, time 90min , temperature 75°C. Under the optimum technological conditions, 34.64mg/g of flavonoids and rosmarinic acid fromPerillacould be obtained.

Sign in / Sign up

Export Citation Format

Share Document