scholarly journals High-power ultrasonic system for the enhancement of mass transfer in supercritical CO2 extraction processes

2010 ◽  
Vol 3 (1) ◽  
pp. 141-146 ◽  
Author(s):  
Enrique Riera ◽  
Alfonso Blanco ◽  
José García ◽  
José Benedito ◽  
Antonio Mulet ◽  
...  
Keyword(s):  
Mass Transfer ◽  
High Power ◽  
Supercritical Co2 ◽  
Supercritical Co2 Extraction ◽  
Power Ultrasonic ◽  
Extraction Processes

High-power ultrasonic system for the enhancement of mass transfer in supercritical CO2 extraction processes

Ultrasonics ◽  
2010 ◽  
Vol 50 (2) ◽  
pp. 306-309 ◽  
Author(s):  
Enrique Riera ◽  
Alfonso Blanco ◽  
José García ◽  
José Benedito ◽  
Antonio Mulet ◽  
...  
Keyword(s):  
Mass Transfer ◽  
High Power ◽  
Supercritical Co2 ◽  
Supercritical Co2 Extraction ◽  
Power Ultrasonic ◽  
Extraction Processes

Supercritical CO2 extraction of fatty oil from flaxseed and comparison with screw press expression and solvent extraction processes

2010 ◽  
Vol 98 (4) ◽  
pp. 393-397 ◽  
Author(s):  
Rama Chandra Pradhan ◽  
Venkatesh Meda ◽  
Prasant Kumar Rout ◽  
Satyanarayan Naik ◽  
Ajay K. Dalai
Keyword(s):  
Solvent Extraction ◽  
Supercritical Co2 ◽  
Screw Press ◽  
Supercritical Co2 Extraction ◽  
Fatty Oil ◽  
Extraction Processes

A high-power ultrasonic microreactor and its application in gas–liquid mass transfer intensification

Lab on a Chip ◽  
2015 ◽  
Vol 15 (4) ◽  
pp. 1145-1152 ◽  
Author(s):  
Zhengya Dong ◽  
Chaoqun Yao ◽  
Xiaoli Zhang ◽  
Jie Xu ◽  
Guangwen Chen ◽  
...  
Keyword(s):  
Mass Transfer ◽  
High Power ◽  
Slug Flow ◽  
Liquid Mass ◽  
Half Wavelength ◽  
Flow Surface ◽  
Power Ultrasonic ◽  
Liquid Mass Transfer ◽  
Overall Mass Transfer Coefficient ◽  
Mass Transfer Intensification

A robust high-power ultrasonic microreactor vibrating as a half wavelength resonator was designed and applied to intensify gas-liquid mass transfer of slug flow. Surface wave oscillation of the bubbles was excited, enhancing the overall mass transfer coefficient by 3.3–5.7 times

Supercritical CO2 extraction of solids using aqueous ethanol as static modifier is a two-step mass transfer process

2019 ◽  
Vol 143 ◽  
pp. 179-190 ◽  
Author(s):  
José M. del Valle ◽  
Ángel Martín ◽  
María José Cocero ◽  
Juan C. de la Fuente ◽  
Reynaldo de la Cruz - Quiroz
Keyword(s):  
Mass Transfer ◽  
Transfer Process ◽  
Supercritical Co2 ◽  
Aqueous Ethanol ◽  
Mass Transfer Process ◽  
Supercritical Co2 Extraction

Countercurrent packed column supercritical CO2 extraction of olive oil. Mass transfer evaluation

2004 ◽  
Vol 28 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Andrés M. Hurtado-Benavides ◽  
Francisco J. Señoráns ◽  
Elena Ibáñez ◽  
Guillermo Reglero
Keyword(s):  
Mass Transfer ◽  
Olive Oil ◽  
Supercritical Co2 ◽  
Packed Column ◽  
Supercritical Co2 Extraction

Supercritical CO2 extraction of oil from seeds of six grape cultivars: Modeling of mass transfer kinetics and evaluation of lipid profiles and tocol contents

2014 ◽  
Vol 94 ◽  
pp. 71-80 ◽  
Author(s):  
Luca Fiori ◽  
Vera Lavelli ◽  
Kurabachew Simon Duba ◽  
Pedapati Siva Charan Sri Harsha ◽  
Hatem Ben Mohamed ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Supercritical Co2 ◽  
Lipid Profiles ◽  
Supercritical Co2 Extraction ◽  
Mass Transfer Kinetics ◽  
Grape Cultivars

Mass Transfer in Countercurrent Packed Columns: Application to Supercritical CO2 Extraction of Terpenes

1995 ◽  
Vol 34 (2) ◽  
pp. 613-618 ◽  
Author(s):  
Pedro C. Simoes ◽  
Henrique A. Matos ◽  
Paulo J. Carmelo ◽  
Edmundo Gomes de Azevedo ◽  
Manuel Nunes da Ponte
Keyword(s):  
Mass Transfer ◽  
Supercritical Co2 ◽  
Packed Columns ◽  
Supercritical Co2 Extraction

scholarly journals Optimized Supercritical CO2 Extraction Enhances the Recovery of Valuable Lipophilic Antioxidants and Other Constituents from Dual-Purpose Hop (Humulus lupulus L.) Variety Ella

Antioxidants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 918
Author(s):  
Nóra Emilia Nagybákay ◽  
Michail Syrpas ◽  
Vaiva Vilimaitė ◽  
Laura Tamkutė ◽  
Audrius Pukalskas ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Antioxidant Properties ◽  
Extraction Yield ◽  
Biologically Active ◽  
High Yield ◽  
Acid Extraction ◽  
Supercritical Co2 Extraction ◽  
Bioactive Constituents ◽  
Total Extract

The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.

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