Ultrasound-assisted extraction of fructans from agave (Agave tequilana Weber var. azul) at different ultrasound powers and solid-liquid ratios

Ultrasound-assisted extraction (UAE) of phenolic compounds fromInula heleniumwas studied. Effects of ethanol concentration, ultrasonic time, solid-liquid ratio, and number of extractions were investigated. An orthogonal array was constructed to optimize UAE process. The optimized extraction conditions were as follows: ethanol concentration, 30%; solid-liquid ratio, 1 : 20; number of extractions, 2 times; extraction time, 30 min. Under the optimal conditions, the yield of total phenolic compounds and chlorogenic acid was6.13±0.58and1.32±0.17 mg/g, respectively. The results showed that high amounts of phenolic compounds can be extracted fromI. heleniumby ultrasound-assisted extraction technology.

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Evaluation of the effect of different factors on the ultrasound assisted extraction of phenolic compounds of the pea pod

DYNA ◽

10.15446/dyna.v86n210.72880 ◽

2019 ◽

Vol 86 (210) ◽

pp. 211-215

Author(s):

Luis Eduardo Ordoñez S. ◽

Oswaldo Osorio Mora ◽

Yamid Alexis Pinchao P.

Keyword(s):

Phenolic Compounds ◽

Ethanol Concentration ◽

Effect Of Temperature ◽

Total Phenols ◽

Liquid Ratio ◽

Ultrasound Assisted Extraction ◽

Assisted Extraction ◽

Pea Pod ◽

Ultrasound Assisted ◽

Solid Liquid

The pea pod is a by-product that possesses several bioactive compounds. The effect of temperature, time, solid-liquid ratio and ethanol concentration on the ultrasonic assisted extraction of phenolic compounds were studied. A 2K factorial design was used and through ANOVA analysis the effect of each process variable was determined. Total phenols were analyzed by the Folin Ciocalteu method. The results showed that the temperature did not affect significantly the extraction of total phenols, however extraction time, ethanol concentration and solid-liquid ratio affected the extraction yield. The maximum concentration of the total phenols for each of the factors was recorded at 20 minutes, a 50% ethanol concentration and a liquid solid ratio of 1:40. These results provide useful information to optimize the ultrasound-assisted extraction process of the phenolic compounds of the pea pod according to the factors studied.

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Design and Optimization of Ultrasound Assisted Extraction of Curcumin as an Effective Alternative for Conventional Solid Liquid Extraction of Natural Products

Natural Product Communications ◽

10.1177/1934578x0900400121 ◽

2009 ◽

Vol 4 (1) ◽

pp. 1934578X0900400 ◽

Cited By ~ 4

Author(s):

Vivekananda Mandal ◽

Saikat Dewanjee ◽

Ranabir Sahu ◽

Subhash C. Mandal

Keyword(s):

Curcuma Longa ◽

Optimization Technique ◽

Extraction Procedure ◽

Liquid Extraction ◽

Extraction Time ◽

Ultrasound Assisted Extraction ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Solid Liquid Extraction ◽

Solid Liquid

The first step in the qualitative and quantitative analysis of medicinal plant constituents is the extraction step. Ideally, an extraction procedure should be exhaustive with respect to the constituents to be analyzed, rapid, simple, and for routine analysis amenable to automation. Usually, the traditional techniques require long extraction times, with more consumption of energy resources and organic solvent, have low efficiency and are often unsafe for thermolabile botanicals. The Taguchi based optimization technique was adapted for the process optimization of ultrasound assisted extraction (UAE) of Curcuma longa to identify the effect of four major factors namely, extraction time, solvent viscosity, grinding degree and solvent volume on the percentage extraction of curcumin. The reproducibility and recovery of the method was also investigated. The efficiency of the new extraction method was then compared with conventional solid liquid extraction procedures. Using this novel method, long hours of conventional Soxhlet extraction were cut down to 70 minutes of UAE with greater reproducibility and recovery. The study clearly shows that this method can be effectively utilized for cutting down long extraction time of botanicals to just a few minutes without the aid of heat.

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The effects of ultrasound-assisted extraction on polyphenolics compounds obtained from Physalis angulata using response surface approach

Acta Scientiarum Technology ◽

10.4025/actascitechnol.v40i1.35530 ◽

2018 ◽

Vol 40 (1) ◽

pp. 35530

Author(s):

Naira Carniel ◽

Rogério Marcos Dallago ◽

Denise Bilibio ◽

Anderson Luiz Nunes ◽

João Paulo Bender ◽

...

Keyword(s):

Gallic Acid ◽

Ellagic Acid ◽

Response Surfaces ◽

Ultrasound Assisted Extraction ◽

Total Polyphenols ◽

Analysis Process ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Physalis Angulata ◽

Solid Liquid

Total polyphenols content (TPC), including flavonoids (rutin, mangiferin and kaempferol) and phenolic acids (gallic, caffeic and ellagic acid) from Physalis angulata were recovered by Ultrasound-Assisted Extraction and quantified by UV–vis and HPLC analysis. Process parameters were assessed through a Central Composite Rotatable Design (CCRD) and a model with regression coefficient equal to 0.9640, was used to establish the optimum conditions together with its respective response surfaces. The increase of ethanol percentage and solid-liquid ratio promoted a decrease on TPC but, on the other hand, the increase in the temperature led to an increase in the extraction of these compounds. Experimental results indicated a maximum amount of total polyphenols of 1.039 mg Gallic Acid Eqivalent (GAE) g-1 of extract, 104.88, 4.04, 8.37, 58.28, 13.26 and 1.87mg.L-1 for gallic acid, caffeic acid, ellagic acid, rutin, mangiferin and kaempferol, respectively.

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Cnicus benedictus Oil as a Raw Material for Biodiesel: Extraction Optimization and Biodiesel Yield

Sustainability ◽

10.3390/su132313193 ◽

2021 ◽

Vol 13 (23) ◽

pp. 13193

Author(s):

Petronela Lina Matei ◽

Cristina Busuioc ◽

Niculina Ionescu ◽

Anicuta Stoica-Guzun ◽

Nicoleta-Aurelia Chira

Keyword(s):

Extraction Methods ◽

Raw Material ◽

Extraction Time ◽

Process Efficiency ◽

Liquid Ratio ◽

Ultrasound Assisted Extraction ◽

Batch Extraction ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Solid Liquid

Cnicus benedictus fruits were used as raw material to extract oil, and the resulting oil was converted into biodiesel. Two extraction methods were tested: batch extraction, and ultrasound assisted extraction. Response surface methodology was considered for the optimization of the process efficiency. The selected key independent variables were temperature, extraction time, and solid/liquid ratio for batch extraction and ultrasound intensity, temperature, and extraction time for the ultrasound assisted extraction, respectively. The optimal working conditions are different for the two extraction techniques, with respect to temperature, solid/liquid ratio, and extraction time, respectively, leading to higher extraction efficiency in the case of the ultrasound-assisted extraction. Cnicus benedictus oil obtained under the optimal extraction conditions was further esterified with methanol under acid catalysis to yield biodiesel. The biodiesel was characterized through 1H-NMR and the main fuel properties were determined.

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Optimization of Ultrasound-Assisted Extraction of Total Flavonoids from Dendranthema indicum var. aromaticum by Response Surface Methodology

Journal of Analytical Methods in Chemistry ◽

10.1155/2019/1648782 ◽

2019 ◽

Vol 2019 ◽

pp. 1-10

Author(s):

Lijie Zhong ◽

Yi Liu ◽

Bin Xiong ◽

Lin Chen ◽

Yaohua Zhang ◽

...

Keyword(s):

Response Surface Methodology ◽

Response Surface ◽

Volume Ratio ◽

Quadratic Model ◽

Total Flavonoids ◽

Ultrasound Assisted Extraction ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Solid Liquid ◽

Operating Method

Dendranthema indicum var. aromaticum is a new species with strong fragrance and is used as a herbal medicine by Chinese folks. The abundant flavonoids play important roles in its pharmacological activities. In this study, an ultrasound-assisted method was used to extract total flavonoids (TF) from D. indicum var. aromaticum by response surface methodology. A quadratic model was developed to optimize the extraction conditions, whose accuracy was verified by statistic analysis. Ethanol and acetic acid at the volume ratio of 70% : 2% were selected as the extract solvent. The optimized extraction conditions were as follows: extraction time, 40 min; solid/liquid ratio, 1 : 23 g/mL; and temperature, 60°C. This is the first report of an efficient and easy-operating method for TF extraction from D. indicum var. aromaticum. Besides, this study provides reference for future pharmacological research on D. indicum var. aromaticum and extraction of bioactive components from other herbs.

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Ultrasound assisted extraction modeling of fructans from agave ( Agave tequilana Weber var. Azul) at different temperatures and ultrasound powers

Food and Bioproducts Processing ◽

10.1016/j.fbp.2015.08.007 ◽

2015 ◽

Vol 96 ◽

pp. 232-239 ◽

Cited By ~ 11

Author(s):

Martín Narváez-Flores ◽

Miguel Á. Sánchez-Madrigal ◽

Armando Quintero-Ramos ◽

Marco A. Paredes-Lizárraga ◽

Rubén F. González-Laredo ◽

...

Keyword(s):

Agave Tequilana ◽

Ultrasound Assisted Extraction ◽

Assisted Extraction ◽

Different Temperatures ◽

Ultrasound Assisted

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Innovative Extraction Techniques for the Optimum Extraction of Phenolic Compounds from Peanut Meal and Evaluation of Their Biological Activities

Advances in Nutrition & Food Science ◽

10.33140/anfs.04.02.2 ◽

2019 ◽

Vol 4 (2) ◽

Keyword(s):

Phenolic Compounds ◽

Carcinoma Cell ◽

Biological Activities ◽

Peanut Meal ◽

Ultrasound Assisted Extraction ◽

Carcinoma Cell Lines ◽

Assisted Extraction ◽

Phenolic Extract ◽

Ultrasound Assisted ◽

Water Ratio

There is a worldwide demand for phenolic compounds (PC) because they exhibit several biological activities. This work aimed at extracting phenolic compounds from peanut meal. The methods of extraction were mainly: conventional solvent extraction (traditional methods) and ultrasound assisted extraction (recent methods) and comparing their results. Peanut meal (PM) was prepared by defatting with n-hexane, and then extracted by the two previous methods. First, the conventional solvents used were 80% methanol, ethanol, acetone, isopropanol, and distilled water. Then studied Different parameters such as meal: water ratio, also the effect of temperature and the pH on the extraction process. Second, ultrasonic assisted extractions (USAE), the parameters investigated were temperature, time and speed of sonication. Finally, all the extracts were analyzed by HPLC for their phenolic contents. Results indicated that the highest extracted PC achieved by solvents was in distilled water where 1:100, Meal: Water ratio which extracted 40 mg PC / g PM at 30& 35°C. Highest extracted PC was achieved by alkaline medium at pH 12 more than acidic and neutral medium. While (USAE) at speed 8 ultrasonication and temperature 30ᵒC, extracted 49.2mg PC /g PM. Sothe ultrasound assisted extraction exhibited great influence on the extraction of phenolic compounds from peanut meal. The ultrasonic peanut extract was examined for its antioxidant, antimicrobial and anticarcinogenic activities. The antioxidant activity of PM phenolic extract prepared by ultrasonic technique, was measured by, β-carotene, and DPPH methods, and reducing antioxidant power. Results revealed values: 84.57, 57.72 and 5960 respectively. The PM extract showed different levels of antimicrobial activity against the pathogenic bacteria used. As for the anticarcinogenic effect PM phenolic extract most effective on inhibiting colon carcinoma and lung carcinoma cell lines with IC50 = 20.7 and 20.8 µ/ml., respectively. This was followed by intestinal carcinoma and liver carcinoma cell lines with IC50= 39.6 and 40.2µ/ml.

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