Ultrasound assisted acid extraction
Optimization of ultrasound-assisted extraction of procyanidins from perilla seed hull and their antioxidant activities in vitro
... α-linolenic acid (ALA, C18:3) (Shin & Kim, 1994; Seong & Song, 2012), which range from ...eicosapentaenoic acid and docosahexaenoic acid, confers perilla seed oil the potential to lower the ...
10
Optimization of ultrasound-assisted extraction of bioactive compounds from jabuticaba (Myrciaria cauliflora) fruit through a Box-Behnken experimental design
... Ultra high-perfomance liquid chromatography (UHPLC) coupled to quadrupole-time-of-flight mass spectrometry (Q-ToF-MS) (Synapt G2, Waters Corp., Milford, MA, USA) was used to identify anthocyanins. The injection volume ...
12
Ultrasound-assisted aqueous enzymatic extraction of oil from perilla seeds and determination of its physicochemical properties, fatty acid composition and antioxidant activity
... fatty acid ALA is a precursor of EPA and DHA, which are especially beneficial to human health (Lee & Song, ...oleic acid content of UAAEE oil ...Dleic acid is very important in the construction ...
7
Optimization of ultrasound-assisted enzymatic extraction and in vitro antioxidant activities of polysaccharides extracted from the leaves of Perilla frutescens
... The reducing power of the polysaccharide fractions was determined according to the method of Dyaizu (1986). The reaction mixture containing 2.5 mL of the sample at different concentrations (0.1, 0.2, 0.4, 0.8, 1.0, 2.0, ...
10
REPOSITORIO INSTITUCIONAL DA UFOP: Comparison between ultrasound assisted extraction and microwave digestion in the determination of arsenic in edible grains.
... corn extraction, a maximum point was achieved by the data analysis, indicating that the model is well adjusted for the ...an acid concentration of 20%, temperature of 67 °C and sonication time of 30 ...
8
Use of Mixture Design with Minimal Restrictions to Optimize an Extraction Procedure Employing Diluted Acids Assisted by Ultrasound and Microwave for Nutrient Element Determination in Vegetal Samples
... with acid mixtures, a mixture design is used in which the property systems depend upon ingredient proportions, rather than on their absolute values. Many times, it is not worth, or even possible, investigating all ...
10
Optimization of ultrasound-assisted extraction of procyanidins from perilla seed hull and their antioxidant activities in vitro
... Ultrasound-assisted extraction (UAE) was used to extract procyanidins (PC) from the perilla seed ...PC extraction were as followsI: a liquid-to-solid ratio of 15I:1, an ethanol concentration ...
10
Ultrasound and microwave assisted extraction of Opuntia fruit peels biocompounds: Optimization and comparison using RSM-CCD
... both extraction technologies, thus the percentages and the concentrations of these molecules were variable depending on the conditions ...each extraction system (Table 2 ), all the maximum amounts of the ...
16
Optimization of ultrasound-assisted extraction of phenolic compounds, antioxidants and rosmarinic acid from perilla leaves using response surface methodology
... increasing extraction time until reaching a plateau at > ...oil extraction (Li et ...time. Ultrasound-assisted extraction of phenolic compounds from other plants, such as rice bran, ...
8
Free phenolic compounds extraction from Brazilian halophytes, soybean and rice bran by ultrasound-assisted and orbital shaker methods
... power ultrasound (linear and quadratic term) and extraction time (quadratic term) significantly affected FPC extraction by UAE (p < ...power ultrasound was the factor with the highest ...
10
Optimization and comparison of heat and ultrasound assisted extraction techniques to obtain anthocyanin compounds from Arbutus unedo L. Fruits
... 2.3. Identification and quantification of anthocyanin compounds The extracted solutions were centrifuged and filtered through a Whatman paper filter n° 4 to remove the suspended solids. The solvent was evaporated at 35 °C ...
11
Evaluation, prediction and optimization the ultrasound-assisted extraction method using response surface methodology: antioxidant and biological properties of Stachys parviflora L.
... enhanced extraction yield by acoustic cavitation, was elucidated using ...Caffeic acid, tannic acid, quercetin, trans ferulic acid and rosmarinic acid were determined as the phenolic ...
13
Optimization of ultrasound-assisted extraction to obtain mycosterols from Agaricus bisporus L. by response surface methodology and comparison with conventional Soxhlet extraction
... Mushrooms are worldwide appreciated not only for their texture and flavor but also for their nutritional and medicinal properties ( Ferreira et al., 2009; Kalac, 2012 ). These organisms are rich sources of vitamins, ...
32
Optimization of ultrasound-assisted extraction of polyphenolic compounds from coriander seeds using response surface methodology
... Nowadays, aromatic and medicinal plants are attracting an increasing amount of attention due to their potential application in various industry fields and for health bene- fits. One of these plants is coriander ...
15
Extraction of rosmarinic acid from Melissa officinalis L. by heat-, microwave- and ultrasound-assisted extraction techniques: A comparative study through response surface analysis
... Heat-assisted extraction (HAE) is the conventional method mostly used for the extraction of natural ...of extraction and the high tem- peratures required [18] . ...
12
Natural antioxidants isolated from Schinus areira leaves by ultrasound-assisted extraction
... Taking into the account the results presented herein, it could inferred that the effectiveness of S. areira leaf extracts as antioxidant and an- tibacterial agents depend on an adequate range and concentration of ...
14
Ultrasound-assisted extraction of mycosterols from Agaricus bisporus L. vs conventional Soxhlet extraction
... In medicinal terms, there is scientific evidence demonstrating the benefits of consumption of mushrooms because of their therapeutic properties. Some of their studied bioactivities include prebiotic, antioxidant, ...
83
Aqueous Ultrasound-Assisted Extraction for the Determination of Fluoroquinolones in Mangrove Sediment by High-Performance Liquid Chromatography and Fluorescence Detector
... impurities weakly bound to the sorbent. Before elution, the cartridges were dried for 30 minutes under a vacuum. The elution of the antibiotic from the cartridges was performed with 6 mL of 2% methanolic solution of ...
9
Ultrasound-assisted virgin olive oil extraction : developing an innovative plant engineering solution
... was carried out by sonication of olive pastes after the malaxation step, in a state- of-the-art ultrasonic reactor, integrated in the low-scale plant between the malaxer and the two-phase decanter centrifuge. The ...
7
DEVELOPMENT AND OPTIMIZATION OF A MICROWAVE-ASSISTED EXTRACTION OF PLUMIERIDE FROM
... like extraction solution, temperature, and ET. The common extraction solvent for medicinal plants are water, alcohol (methanol and ethanol), ethyl acetate, dichlorometane and their ...MAE extraction ...
7