scholarly journals Penetapan Kadar Fenolik dan Flavonoid Hasil Ultrasonic Assisted Extraction Daun Binahong (Anredera cordifolia [Ten] Steenis)

2020 ◽  
Vol 11 (1) ◽  
pp. 16-23
Author(s):  
Landyyun Rahmawan Sjahid ◽  
Amelia Aqshari ◽  
Sediarso Sediarso
Keyword(s):  
Phenolic Compounds ◽  
Pharmacological Activity ◽  
Extraction Method ◽  
Ethanolic Extract ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction ◽  
Conventional Extraction ◽  
Phenolic And Flavonoid ◽  
Phenolic And Flavonoid Compounds

Anredera cordifolia [Ten] Steenis has been proven to have pharmacological activity that is thought to be influenced by the presence of phenolic compounds and flavonoids. However, both compounds are found in small concentrations through conventional extraction (maceration, decoction, soxhlet, and reflux). This study aims to prove that the ultrasonic assisted extraction method can obtain higher concentrations of phenolic and flavonoid compounds. Dried binahong leaves were extracted using ultrasonic assisted extraction with 70% ethanol. Phenolic levels were determined using Folin-Ciocalteu, while flavonoid levels were determined using the colorimetric aluminum method. The results showed binahong leaves ethanolic extract had phenolic levels of 10.16 % GAE and flavonoid levels of 10.58 % QE. These results are much higher than the results obtained using conventional extraction so that ultrasonic assisted extraction can be recommended to maximize the extraction of phenolic and flavonoid levels from the leaves of Binahong (Anredera cordifolia [Ten] Steenis). 

scholarly journals Ultrasonically-Assisted and Conventional Extraction from Erodium Glaucophyllum Roots Using Ethanol:Water Mixtures: Phenolic Characterization, Antioxidant, and Anti-Inflammatory Activities

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1759 ◽  
Author(s):  
Francisco J. Barba ◽  
Cristina Alcántara ◽  
Radhia Abdelkebir ◽  
Christine Bäuerl ◽  
Gaspar Pérez-Martínez ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Necrosis Factor Alpha ◽  
Assisted Extraction ◽  
Potent Inhibition ◽  
Tnf Α ◽  
Ultrasonic Assisted ◽  
Trolox Equivalent ◽  
Factor Alpha ◽  
Conventional Extraction ◽  
Anti Inflammatory

The paper presents experimental results concerning the ultrasonically-assisted extraction of bioactive compounds from Erodium glaucophyllum roots. A comparison with conventional methodology is presented, and thereby the phytochemical composition and the antioxidant and anti-inflammatory activities of extracts are evaluated. The phenolic profile of Erodium extracts was analyzed by TOF–LC–MS–MS. The identification of phenolic compounds revealed that the major component was (+)-gallocatechin in the aqueous extracts obtained for the different extraction methodologies. The highest quantity of phenolic compounds and antioxidant capacity was found in the hydroethanolic extract obtained by conventional extraction (29.22–25.50 mg GAE/g DM; 21.174 mM Trolox equivalent). The highest content of carotenoids, varying from 0.035 to 0.114 mg/g dry matter, was reached by ultrasonic-assisted extraction. Furthermore, Erodium extracts showed a potent inhibition of the inflammatory reaction by means of the inhibition of tumor necrosis factor-alpha (TNF-α). The extracts obtained when ultrasound extraction was combined with ethanol:water (50:50, v/v) presented the greatest inhibition (92%).

scholarly journals Ultrasonic assisted extraction to obtain bioactive, antioxidant and antimicrobial compounds from marcela

2018 ◽  
Vol 48 (6) ◽  
Author(s):  
Caroline Pagnossim Boeira ◽  
Natiéli Piovesan ◽  
Marcela Bromberger Soquetta ◽  
Déborah Cristina Barcelos Flores ◽  
Bruna Nichelle Lucas ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antioxidant Activity ◽  
Bioactive Compounds ◽  
Extraction Method ◽  
Ultrasonic Method ◽  
Ultrasound Assisted Extraction ◽  
Ultrasound Method ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Conventional Extraction

ABSTRACT: The aim of this study was to evaluate the effect of extraction conditions on bioactive compounds, as well as on antioxidant activity, and the antimicrobial activity of the extracts with the highest antioxidant characteristics. The extracts were obtained by conventional method and ultrasound-assisted extraction at various temperatures (20°C, 40°C and 60°C). Total phenolics, total flavonoids, antimicrobial activity and antioxidant activity were quantified by the methods of DPPH, FRAP, and ORAC, respectively. The conventional extraction method and ultrasound method influenced the phenolic content at all the tested temperatures. Flavonoids were not influenced by extraction methods. The antioxidant activity (DPPH) was highest in the ultrasonic method at temperatures of 40°C and 60°C; however, in the case of the FRAP method the best results were for the conventional extraction method. The conventional and ultrasonic methods did not influence the IC50 at temperatures of 20°C and 40°C, but using ORAC the antioxidant activity was influenced by the methods at all temperatures. The extract obtained at 60°C by the ultrasound method had high antimicrobial action in relation to the strains of Salmonella sp., Escherichia coli, and Staphylococcus aureus. Extraction ultrasonic-assisted can be considered adequate to obtain extracts of marcela, which are rich in bioactive compounds with high antioxidant activity.

Study on optimization of ultrasonic assisted extraction of phenolic compounds from rye bran

LWT ◽  
2020 ◽  
Vol 134 ◽  
pp. 110243
Author(s):  
Maryam Iftikhar ◽  
Huijuan Zhang ◽  
Asra Iftikhar ◽  
Ali Raza ◽  
Nabila Begum ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction

An ultrasonic assisted extraction method to release heavy metals from untreated sewage sludge samples

Chemosphere ◽  
2006 ◽  
Vol 63 (3) ◽  
pp. 411-420 ◽  
Author(s):  
T.G. Kazi ◽  
M.K. Jamali ◽  
A. Siddiqui ◽  
G.H. Kazi ◽  
M.B. Arain ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Extraction Method ◽  
Untreated Sewage ◽  
Assisted Extraction ◽  
Ultrasonic Assisted ◽  
Ultrasonic Assisted Extraction
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