scholarly journals Selective extraction of high-value phenolic compounds from distillation wastewater of basil (Ocimum basilicumL.) by pressurized liquid extraction

2018 ◽  
Vol 39 (15) ◽  
pp. 1884-1891 ◽  
Author(s):  
Imma Pagano ◽  
Andrea del Pilar Sánchez-Camargo ◽  
Jose Antonio Mendiola ◽  
Luca Campone ◽  
Alejandro Cifuentes ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Selective Extraction ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction

scholarly journals Antioxidant Activity and Phenolic Content of Campomanesia Phaea Extracts Obtained by Pressurized Liquid Extraction

2019 ◽  
Vol 11 (1) ◽  
pp. 56-65
Author(s):  
Daniele Martins Firmiano ◽  
Gabriela Marques Bittencourt ◽  
Alessandra Lopes de Oliveira
Keyword(s):  
Antioxidant Activity ◽  
Particle Size ◽  
Phenolic Compounds ◽  
Phenolic Content ◽  
Fixed Bed ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Total Phenolic ◽  
High Antioxidant Activity ◽  
The Mean

Objective: This research used the Pressurized Liquid Extraction process (PLE) to obtain cambuci extracts rich in phenolic compounds and, consequently, with high antioxidant activity. Methods: We determined the centesimal composition and the mean particle size of the dried and crushed sample for characterization of the fixed bed extractor. Extractions with pressurized ethanol were performed following a Central Composite Design (CCD) with temperature (60 °C at the center point with ± 10 °C amplitude) and the contact time between the solvent and the matrix (6 min at the center point with ± 2 min amplitude) as independent variables in the process. The Total Phenolic Content (TPC) of compounds and antioxidant activity were determined. Results: The mean particle size of the cambuci in the PLE was 263.4 μm with apparent and real densities of 32.42 g/cm3 and 1.62 g/cm3, respectively, resulting in a fixed bed porosity of 0.43. The centesimal composition of the comminuted and dried sample was 12.5 ± 0.1% moisture, 3.2 ± 0.2% ash, 3.35 ± 0.07% crude protein, 10.32 ± 0.08% crude fiber and 0.35 ± 0.04% ethereal extract. The highest extraction yield (41.7%) was obtained by using the binomial 70 ºC with 8 min of solvent contact in three batches. Extracts with the highest TPC (6501.10 mg AGE/100 g sample) were obtained by the binomial 74 °C with 6 min of contact; the binomial 50 °C with 4 min of contact gave rise to the extract with the highest antioxidant activity. The CCD showed high yield extracts with high antioxidant activity and a high total phenolic compound content. Conclusion: With the use of the proposed experimental design, it was possible to optimize the extraction of total phenolic compounds from the sample.

Pressurized liquid extraction applied for the recovery of phenolic compounds from beetroot waste

2019 ◽  
Vol 21 ◽  
pp. 101353 ◽  
Author(s):  
Heloísa Fabian Battistella Lasta ◽  
Lucas Lentz ◽  
Luiz Gustavo Gonçalves Rodrigues ◽  
Natália Mezzomo ◽  
Luciano Vitali ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction

scholarly journals Pressurized Liquid Extraction Combined with Enzymatic-Assisted Extraction to Obtain Bioactive Non-Extractable Polyphenols from Sweet Cherry (Prunus avium L.) Pomace

Nutrients ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 3242
Author(s):  
Gloria Domínguez-Rodríguez ◽  
María Concepción García ◽  
María Luisa Marina ◽  
Merichel Plaza
Keyword(s):  
Phenolic Compounds ◽  
Sweet Cherry ◽  
Prunus Avium ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Size Exclusion ◽  
Assisted Extraction ◽  
Exclusion Chromatography ◽  
Conventional Extraction ◽  
Cherry Pomace

Sweet cherry generates large amounts of by-products within which pomace can be a source of bioactive phenolic compounds. Commonly, phenolic compounds have been obtained by conventional extraction methodologies. However, a significant fraction, called non-extractable polyphenols (NEPs), stays held in the conventional extraction residues. Therefore, in the present work, the release of NEPs from cherry pomace using pressurized liquid extraction (PLE) combined with enzyme-assisted extraction (EAE) using PromodTM enzyme is investigated for the first time. In order to study the influence of temperature, time, and pH on the NEPs extraction, a response surface methodology was carried out. PLE-EAE extracts displayed higher TPC (75 ± 8 mg GAE/100 g sample) as well as, PA content, and antioxidant capacity than the extracts obtained by PLE (with a TPC value of 14 ± 1 mg GAE/100 g sample) under the same extraction conditions, and those obtained by conventional methods (TPC of 8.30 ± 0.05 mg GAE/100 g sample). Thus, PLE-EAE treatment was more selective and sustainable to release NEPs from sweet cherry pomace compared with PLE without EAE treatment. Besides, size-exclusion chromatography profiles showed that PLE-EAE allowed obtaining NEPs with higher molecular weight (>8000 Da) than PLE alone.

scholarly journals Techno-economic evaluation for recovering phenolic compounds from acai (Euterpe oleracea) by-product by pressurized liquid extraction

2021 ◽  
pp. 105413
Author(s):  
Juliane Viganó ◽  
Ana Carolina de Aguiar ◽  
Priscilla Carvalho Veggi ◽  
Vitor L. Sanches ◽  
Maurício Ariel Rostagno ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Phenolic Compounds ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Euterpe Oleracea

scholarly journals Extraction of Anthocyanins and Total Phenolic Compounds from Açai (Euterpe oleracea Mart.) Using an Experimental Design Methodology. Part 1: Pressurized Liquid Extraction

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 183 ◽  
Author(s):  
María José Aliaño-González ◽  
Marta Ferreiro-González ◽  
Estrella Espada-Bellido ◽  
Ceferino Carrera ◽  
Miguel Palma ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Extraction Methods ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Total Phenolic ◽  
Significant Variable ◽  
Extraction Temperature ◽  
Euterpe Oleracea ◽  
Total Phenolic Compounds ◽  
Relative Standard

Currently, açai is one of the most important fruits present in the world. Several studies have demonstrated its high content in phenolic compounds and anthocyanins. Both of them are responsible of interesting properties of the fruit such as anti-inflammatory, antioxidant or anticancer. In the present study, two optimized pressurized liquid extraction (PLE) methods have been developed for the extraction of anthocyanins and total phenolic compounds from açai. A full factorial design (Box–Behnken design) with six variables (solvent composition (25–75% methanol-in-water), temperature (50–100 °C), pressure (100–200 atm), purge time (30–90 s), pH (2–7) and flushing (50–150%)) were employed. The percentage of methanol in the extraction solvent was proven to be the most significant variable for the extraction of anthocyanins. In the case of total phenolic compounds, the extraction temperature was the most influential variable. The developed methods showed high precision, with relative standard deviations (RSD) of less than 5%. The applicability of the methods was successfully evaluated in real samples. In conclusion, two rapid and reliable PLE extraction methods to be used for laboratories and industries to determine anthocyanins and total phenolic compounds in açai and its derived products were developed in this work.

Pressurized liquid extraction of phenolic compounds from rice (Oryza sativa) grains

2016 ◽  
Vol 192 ◽  
pp. 452-459 ◽  
Author(s):  
W. Setyaningsih ◽  
I.E. Saputro ◽  
M. Palma ◽  
C.G. Barroso
Keyword(s):  
Oryza Sativa ◽  
Phenolic Compounds ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction

Optimization of microwave-assisted extraction and pressurized liquid extraction of phenolic compounds fromMoringa oleiferaleaves by multiresponse surface methodology

2016 ◽  
Vol 37 (13) ◽  
pp. 1938-1946 ◽  
Author(s):  
Celia Rodríguez-Pérez ◽  
Bienvenida Gilbert-López ◽  
Jose Antonio Mendiola ◽  
Rosa Quirantes-Piné ◽  
Antonio Segura-Carretero ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Microwave Assisted Extraction ◽  
Microwave Assisted ◽  
Assisted Extraction

Establishment of pressurized-liquid extraction by response surface methodology approach coupled to HPLC-DAD-TOF-MS for the determination of phenolic compounds of myrtle leaves

2018 ◽  
Vol 410 (15) ◽  
pp. 3547-3557 ◽  
Author(s):  
Elixabet Díaz-de-Cerio ◽  
David Arráez-Román ◽  
Antonio Segura-Carretero ◽  
Pasquale Ferranti ◽  
Rosario Nicoletti ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Phenolic Compounds ◽  
Response Surface ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Tof Ms
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