scholarly journals Ultrasound-Assisted Water Extraction of Mastocarpus stellatus Carrageenan with Adequate Mechanical and Antiproliferative Properties

Marine Drugs ◽  
2021 ◽  
Vol 19 (5) ◽  
pp. 280
Author(s):  
Maria Dolores Torres ◽  
Noelia Flórez-Fernández ◽  
Herminia Dominguez
Keyword(s):  
Human Cancer ◽  
Water Extraction ◽  
Antioxidant Compounds ◽  
Liquid Ratio ◽  
Gelling Temperature ◽  
Viscoelastic Modulus ◽  
Mastocarpus Stellatus ◽  
Ultrasound Assisted ◽  
Solid Liquid ◽  
Optimum Extraction

Ultrasound-assisted water extraction was optimized to recover gelling biopolymers and antioxidant compounds from Mastocarpus stellatus. A set of experiments following a Box–Behnken design was proposed to study the influence of extraction time, solid liquid ratio, and ultrasound amplitude on the yield, sulfate content, and thermo-rheological properties (viscoelasticity and gelling temperature) of the carrageenan fraction, as well as the composition (protein and phenolic content) and antiradical capacity of the soluble extracts. Operating at 80 °C and 80 kHz, the models predicted a compromise optimum extraction conditions at ~35 min, solid liquid ratio of ~2 g/100 g, and ultrasound amplitude of ~79%. Under these conditions, 40.3% carrageenan yield was attained and this product presented 46% sulfate and good mechanical properties, a viscoelastic modulus of 741.4 Pa, with the lowest gelling temperatures of 39.4 °C. The carrageenans also exhibited promising antiproliferative properties on selected human cancer cellular lines, A-549, A-2780, HeLa 229, and HT-29 with EC50 under 51.9 μg/mL. The dried soluble extract contained 20.4 mg protein/g, 11.3 mg gallic acid eq/g, and the antiradical potency was equivalent to 59 mg Trolox/g.

Study on Water Extraction Technology of Litsea cubeba Essential Oil from the Seed of Litsea cubeba (Lour.) Pers. Assisted by Microwave and Ultrasonic

2010 ◽  
Vol 156-157 ◽  
pp. 1113-1116
Author(s):  
Guo En Yang ◽  
Xiang Zhou Li ◽  
Min Zhang ◽  
Ying He Li
Keyword(s):  
Essential Oil ◽  
Microwave Power ◽  
Extraction Process ◽  
Water Extraction ◽  
Average Yield ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Litsea Cubeba ◽  
Optimal Technology ◽  
Solid Liquid

Evaluated with the yield of litsea cubeba essential oil, water extraction technology of essential oil from the seed of Litsea Cubeba (Lour.) Pers. assisted by microwave and ultrasonic is studied for the first time in this paper. The optimal water extraction technology of litsea cubeba essential oil assisted by pure microwave is as follows: extracting time 40 minutes, microwave power 650 W, solid-liquid ratio 1:4 (g/mL). Average yield of litsea cubeba essential oil is up to 10.287% (g/g) under the above optimal technology. The optimal water extraction technology of litsea cubeba essential oil assisted by microwave together with ultrasonic is as follows: extracting time 8 minutes, microwave power 600 W, solid-liquid ratio 1:7 (g/mL), extracting temperature 85 . Average yield of litsea cubeba essential oil is up to 14.188% under the above optimal technology. Microwave and ultrasonic can effectively enhance the extraction process of litsea cubeba essential oil.

Research on the Extraction Process of Water-Soluble Asparagus Powder and Removal of Free Radical

2013 ◽  
Vol 284-287 ◽  
pp. 385-389
Author(s):  
You Shun Peng ◽  
Shi Tao Song ◽  
Shu Yuan Wang ◽  
Xue Fang Zheng ◽  
Qi Lian
Keyword(s):  
Free Radicals ◽  
Hydroxyl Radicals ◽  
Extraction Process ◽  
Water Soluble ◽  
Raw Material ◽  
Liquid Ratio ◽  
Extraction Condition ◽  
Yield Rate ◽  
Solid Liquid ◽  
Optimum Extraction

The optimum extraction condition of water-soluble asparagus powder through water boiling method is to extract it twice, in the first extraction, 8% is set as the solid-liquid ratio, 15 minutes is set as the soak time and 40 minutes is set as the boiling time; in the second extraction, 10% is set as the solid-liquid ratio, 40 minutes is set as the boiling time. Under this condition, the dry yield rate is 33.98%, and the total active substance yield rate is 10.34% (including flavones yield rate of 1.0%, saponin yield rate of 5.99%, and polysaccharide yield rate of 3.35%). Water-soluble asparagus powder has good removal effects on hydroxyl radicals, superoxide anion free radicals, and DPPH free radicals. The water-soluble asparagus powders made from the raw material in different pick-time have different removal effects on DPPH free radicals, and the asparagus powder made from asparagus picked in August, September, and October is better.The best is to read these instructions and follow the outline of this text.

scholarly journals Study on Extraction Technology of Pitaya Polysaccharide

2021 ◽  
Vol 251 ◽  
pp. 02052
Author(s):  
Feng Xuehua ◽  
Song Zurong ◽  
Tao Ali ◽  
Gong Panpan
Keyword(s):  
Orthogonal Test ◽  
Raw Material ◽  
Extraction Time ◽  
Extraction Temperature ◽  
Single Factor ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Solid Liquid ◽  
Optimum Extraction

Using pitaya as raw material, this paper used ethanol subsiding method to study the extraction technology of pitaya polysaccharide by single factor test and orthogonal test. Through orthogonal test, we have found the optimum extraction conditions of pitaya polysaccharide as follows: extraction temperature 60℃, solid-liquid ratio 1:30, extraction time 3h. Under the optimal extraction conditions, the yield of pitaya polysaccharide was 1.13%.

scholarly journals Ultrasound-Assisted Extraction of Total Phenolic Compounds fromInula helenium

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Jin Wang ◽  
Yong-Ming Zhao ◽  
Ya-Ting Tian ◽  
Chun-Lin Yan ◽  
Chun-Yan Guo
Keyword(s):  
Phenolic Compounds ◽  
Ethanol Concentration ◽  
Total Phenolic ◽  
Total Phenolic Compounds ◽  
Liquid Ratio ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasonic Time ◽  
Ultrasound Assisted ◽  
Solid Liquid

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.

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

DYNA ◽  
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.

Optimization on Extraction Technique of Soluble Soybean Polysaccharide

2011 ◽  
Vol 138-139 ◽  
pp. 1156-1161 ◽  
Author(s):  
Hong Rui Li ◽  
Li Bing Yuan ◽  
Ming Sheng Xv ◽  
Wen Bo Zhang
Keyword(s):  
Ultrasonic Treatment ◽  
Treatment Time ◽  
Water Extraction ◽  
Extraction Technique ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Extraction Period ◽  
Bean Dregs ◽  
Optimum Extraction

To investigate the extraction technique of soluble soybean polysaccharide by ultrasonic assistance, four relative factors, including water extraction temperature, ultrasonic treatment time, ultrasonic power and solid to liquid ratio, were optimized through orthogonal test L9 (34 ) on the basis of single factor experiment. The factors influencing the extraction rate of soluble soybean polysaccharide, in the sequence of significance, were ultrasonic treatment time, water extraction time, water extraction temperature and sold to liquid ratio. The optimum extraction technological parameter of soluble soybean polysaccharide was: ultrasonic wave period 20 min, water extraction temperature 90 °C, sold to liquid ratio 1:40, water extraction period 4 h, and the extracting rate was 3.5421% of bean dregs. The method of phenol-sulphate acid was applied to determine the content of polysaccharide. The content of polysaccharide was 96.58％ of extracted soybean polysaccharide sample.

scholarly journals Optimization of DHEA Extraction from Sweet Potato Pomace by Ultrasonic-Microwave Synergistic Employing Response Surface Methodology

2019 ◽  
Vol 102 (2) ◽  
pp. 680-682
Author(s):  
Junjian Ran ◽  
Xinhong Liang ◽  
Hanmei Du ◽  
Junliang Sun
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Sweet Potato ◽  
Extraction Method ◽  
Extraction Efficiency ◽  
Extraction Yield ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Solid Liquid ◽  
Optimum Extraction

Abstract Background: A lot of sweet potato residues (SPR) were discarded and wasted. Objective: To make full use of the SPR. Methods: Ultrasonic microwave synergistic (UMS) extraction method was used to extractdehydroepiandrosterone (DHEA) in SPR. The extraction conditions were optimized by response surface methodology based on single factors. Results: The optimum extraction conditions were 1:25 (solid–liquid ratio), 300 W (microwave power), 30 min (extraction time), and 30°C (extraction temperature). The extraction yield of DHEA from SPR reached 117.25 μg/100 g. Conclusions: The advantage of UMS extractiontechnology is to make full use of the synergistic effect of ultrasound and microwave to improve extraction efficiency. Highlights: The technology provides an effective way to improve the DHEA extraction yield from the SPR in industrial production.

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

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.

scholarly journals OPTIMIZATION OF BREWING WASTE’S (TRUB) PHENOLIC COMPOUNDS EXTRACTION BY ULTRASOUND ASSISTED USING RESPONSE SURFACE METHODOLOGY

Química Nova ◽  
2020 ◽  
Author(s):  
Bianca Gandolpho ◽  
Aline Almeida ◽  
Gabriel Gandolpho ◽  
Daniele Freitas ◽  
Otávio Gasparini ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Phenolic Compounds ◽  
Response Surface ◽  
Ethanol Concentration ◽  
Operating Conditions ◽  
Extraction Temperature ◽  
Liquid Ratio ◽  
Extraction Technology ◽  
Ultrasound Assisted ◽  
Solid Liquid

The brewing waste, also known as trub, is an abundant by-product of the brewing industry. Such material presents high levels of phenolic compounds, which promote antioxidant, antimicrobial and antifungal effects, turning the trub economically attractive. In this study, the trub’s phenolic compounds were extracted by ultrasound-assisted extraction technology. Such experiments were conducted according to a central composite rotatable design (CCRD), with the evaluated parameters being ethanol concentration, solid-liquid ratio and extraction temperature. Response surface methodology (RSM) described the effect of process’ variables through second order polynomial models, adjusted appropriately for such analysis, and optimized the operating conditions, aiming to obtain the maximum extraction of phenolic compounds through the proposed technique. The extraction’s optimal conditions for the evaluated variables were ethanol concentration of 58%, solid-liquid ratio of 1 g per 32 mL, and extraction temperature of 36 ºC, during a 30 minute process. Considering such experimental conditions, the total amount of phenolic compounds was equal to 7.23 mg of gallic acid g-1 trub, indicating that a great concentration of phenolic compounds can be extracted from this material through the proposed technique. Thus, this indicates that trub might be a promising by-product that can be used in different industrial fields.

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