The Extractive Technique of Active Constituent in Six Insecticidal Plants

2011 ◽  
Vol 291-294 ◽  
pp. 2586-2590
Author(s):  
Hui Wang ◽  
Ling Ma ◽  
Wei Ma
Keyword(s):  
Extraction Method ◽  
Artemisia Annua ◽  
Orthogonal Experiment ◽  
Ethanol Solution ◽  
Ultrasonic Extraction ◽  
Extraction Time ◽  
Liquid Ratio ◽  
Active Ingredients ◽  
Active Constituent ◽  
Solid Liquid

In this study, the soakage extraction method and the ultrasonic extraction method were used to extract active ingredients from Artemisia annua, Artemisia sieversiana, Artemisia mongolica，Artemisia scoparia, Artemisia lavandulaefolia and Artemisia japonica. Using the orthogonal experiment design, we studied the effects of four factors: extraction time, solid-liquid ratio, fineness and extraction times, on extracting active ingredients from Artemisia annua. We also optimized the extraction conditions of the ultrasonic wave method. The results showed that 95% ethanol solution was the best solvent for extracting components in these six species of Artemisia. The best extraction method was ultrasonic extraction method. The optimum extraction conditions of ultrasonic extraction were 1:20 of solid-liquid ratio, one time of extraction, 40 of degree of fineness and 40 minutes of extraction time.

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.

scholarly journals Research on the Extraction Process in Aqueous Two-Phase System of Moringa Leaf Flavonoids

2021 ◽  
Vol 267 ◽  
pp. 02010
Author(s):  
Rui Wang ◽  
Xueqin Zhang ◽  
Qian Zhou
Keyword(s):  
Raw Materials ◽  
Extraction Process ◽  
Ultrasonic Extraction ◽  
Extraction Time ◽  
Phase System ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Two Phase ◽  
Aqueous Two Phase System ◽  
Solid Liquid

Moringa leaves were used as raw materials, ethanol and ammonium sulfate were used to construct a aqueous two-phase system to extract the flavonoids from Moringa leaves. The solid-liquid ratio, ethanol content, ultrasonic extraction time, and ultrasonic extraction temperature were selected as single factors, and the extraction process of flavonoids was optimized through single-factor experiments and orthogonal experiments. The optimal process was: 1:110 of solid-liquid ratio, 45 % of ethanol concentration, 15 minutes of ultrasonic extraction time, 70 °C of ultrasonic extraction temperature. Under this condition, the extraction rate of Moringa leaf flavonoids reached 8.37 %.

Research on Extraction of Proanthocyanidin from Peanut Skin by Aspergillus niger Fermentation

2011 ◽  
Vol 236-238 ◽  
pp. 2499-2504 ◽  
Author(s):  
Chu Shu Zhang ◽  
Qing Li Yang ◽  
Ke Jia ◽  
Zhi Qiang Liu ◽  
Li Na Yu ◽  
...  
Keyword(s):  
Cell Wall ◽  
Aspergillus Niger ◽  
Orthogonal Experiment ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Single Factor ◽  
Optimum Conditions ◽  
Liquid Ratio ◽  
Peanut Skin ◽  
Solid Liquid

The cell wall of peanut skin was destroyed by cellulase enzymolysis from peanut skin fermentation, which was beneficial to extract proanthocyanidin. The extraction conditions of proanthocyanidin from fermented peanut skin were studied according to orthogonal experiment based on single factor experiments. And the optimum conditions were obtained as follows: extraction time 40min, extraction temperature 55°C, Concentrations of ethanol 45%, solid-liquid ratio 1:15. The extraction rate was 16.17 %.

Study on Ultrasonic Extraction of Oligomeric Proantho Cyanidin from Chestnut Shell

2014 ◽  
Vol 955-959 ◽  
pp. 2880-2884
Author(s):  
Xiu Hua Tang ◽  
Feng Zhen Zhang
Keyword(s):  
Raw Materials ◽  
Orthogonal Experiment ◽  
Extraction Rate ◽  
Ultrasonic Extraction ◽  
Extraction Time ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Chestnut Shell ◽  
Solid Liquid ◽  
Extraction Agent

In this paper, the ultrasonic extraction method of Oligomeric Proantho Cyanidin with chestnut shells as raw materials is studied. Using single factor method we study the effects of different extraction time, extraction reagent, extracting agent concentration and ultrasonic power on the extraction rate of Oligomeric Proantho Cyanidin. After analyzing these various factors, we make the orthogonal experiment with the factors including extraction time, extraction agent concentration, extraction temperature, solid-liquid ration, and get the optimal conditions. The experimental results show that the optimum extraction conditions are as follow: time of 30 min, extracting agent of 40% (v %) ethanol aqueous solution, extraction temperature of 40 °C, solid-liquid ratio of 1: 25 g/mL and ultrasonic power of 100 w; under these conditions the extraction rate of Oligomeric Proantho Cyanidin is 3.418%.

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.

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 Ultrasound Extraction of Nitrite Nitrogen in Sediment by Response Surface Methodology

2014 ◽  
Vol 955-959 ◽  
pp. 1466-1470 ◽  
Author(s):  
Dan Liu ◽  
Fang Yu ◽  
Wei Tan ◽  
Gui Zhen Li ◽  
Min Yang ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Optimum Condition ◽  
Response Surface ◽  
Process Condition ◽  
Extraction Time ◽  
Ultrasonic Power ◽  
Liquid Ratio ◽  
Ultrasound Extraction ◽  
Nitrite Nitrogen ◽  
Solid Liquid

Response surface methodology based on single factors was used to optimize the process condition for extraction of nitrite nitrogen in sediment . The results indicated that the extraction amount of nitrite nitrogen was 9.5μg /g under the optimum condition of extraction time of 44min, ultrasonic power of 280W, solid-liquid ratio of 1:19,which was closed to the predicated yield of 9.3μg/g. The process can be used for the extraction of nitrite nitrogen in sediments.

Study on Steam Extraction Technology Assisted by Microwave of Anise Star Oil from the Fruit of Illicium verum Hook. f.

2011 ◽  
Vol 201-203 ◽  
pp. 2935-2938
Author(s):  
Guo En Yang ◽  
Gui Wu Wang ◽  
Zhi Ping Wu ◽  
Xiang Zhou Li
Keyword(s):  
Extraction Method ◽  
Steam Distillation ◽  
Influencing Factor ◽  
Extraction Process ◽  
Average Yield ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Steam Extraction ◽  
Illicium Verum ◽  
Solid Liquid

Evaluated with the yield of anise star oil, steam extraction method assisted by microwave is studied for the extraction of anise star oil from Illicium verum Hook. f. in contrast with the traditional steam distillation (SD) method in this paper. The new optimal steam extraction technology assisted by microwave of anise star oil is obtained as: extracting time 80 minutes, solid-liquid ratio(g/mL) 1:7, size of material 80~100 mesh and extracting temperature 80°C. Average yield of anise star oil is up to 11.6% (g/g) under the above technology. Size of material is the most important influencing factor in the extraction process. The optimal traditional steam distillation technology is: extracting time 120 minutes, solid-liquid ratio(g/mL) 1:6, size of material 80~100 mesh and extracting temperature 100°C , the average yield of anise star oil is only 9.81% (g/g). The steam extraction technology assisted by microwave has advantages in both the technological conditions and the yield of anise star oil than the traditional steam distillation technology.

scholarly journals Ekstraksi Polifenol Total dari Herba Suruhan (Peperomia pellucida [L.] KUNTH) Menggunakan Metode Citric Acid-Glucose Based Microwave Assisted Extraction

2019 ◽  
Vol 10 ◽  
pp. 76-80
Author(s):  
Duwi Meiliyani ◽  
Sabaniah ◽  
Islamudin Ahmad
Keyword(s):  
Citric Acid ◽  
Extraction Method ◽  
Microwave Assisted Extraction ◽  
Green Solvent ◽  
Liquid Ratio ◽  
Extraction Condition ◽  
Total Polyphenols ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Solid Liquid

This study aims to determine the effect of citric acid-glucose based microwave assited extraction (MAE) method on total polyphenols content from (Peperomia pellucida [L.] Kunth) herbs. Dried samples were extracted using green solvent glucose citric acid with a ratio of 1: 1 g/g, 3: 1 g/g, and 5: 1 g/g, respectively, 30% microwave power for 5 minutes, and 1:5 g /mL solid-liquid ratio. Then the obtained extract solution was performed determination total polyphenols content using Folin-Ciocalteu reagent, and the absorbance was measured using a UV-Vis spectrophotometer at 791 nm. Based on the results, obtained total polyphenols content according to the extraction condition namely 214.405 mg GAE/g sample (3: 1 g /g solvent), 84.833 mg GAE /g sample (1: 1 g /g solvent) and 53,9451 mg GAE/g sample (5: 1 g /g solvent), respectively. This study is a preliminary data about the use of citric acid-glucose based microwave assisted extraction method on total polyphenols content from this plant quickly, easily and efficiently.

Study on the Separation of Waste Polyester-Cotton Fiber with Dilute Acid

2011 ◽  
Vol 295-297 ◽  
pp. 2088-2091
Author(s):  
Wei Kong ◽  
Yong Ling Yu ◽  
Li Hua Lv
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Cotton Fiber ◽  
Mass Fraction ◽  
Orthogonal Experiment ◽  
Cotton Fibers ◽  
Dilute Acid ◽  
Liquid Ratio ◽  
Priority Order ◽  
Solid Liquid

Process of the separation of waste polyester-cotton fiber with dilute hydrochloric acid was studied. Acid mass fraction, reaction time, reaction temperature and solid-liquid ratio were studied on the effect of separation with the method of Orthogonal experiment. The results showed that the priority order of the factors was reaction time > acid mass fraction > reaction temperature > solid-liquid ratio. The optimal conditions through serious research on such factors were: acid mass fraction 10%, solid-liquid ratio 4g/100ml, reaction temperature 95°Cand reaction time 90 minutes. Through the microscope, polyester and cotton fibers were separated completely in which polyester into fibrous and cotton fibers were hydrolyzed into tiny powder.

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