Development of Functional Materials from Seafood By-products by Membrane Separation Technology

2013 ◽  
pp. 35-62 ◽  
Author(s):  
Jung Kwon Lee ◽  
Eunice C. Y. Li-Chan ◽  
Joong-Kyun Jeon ◽  
Hee-Guk Byun
Keyword(s):  
Membrane Separation ◽  
Functional Materials ◽  
Separation Technology ◽  
By Products

Separation of Biologically Active Compounds by Membrane Operations

2017 ◽  
Vol 23 (2) ◽  
pp. 218-230 ◽  
Author(s):  
Xiaoying Zhu ◽  
Renbi Bai
Keyword(s):  
Energy Consumption ◽  
Bioactive Compounds ◽  
Membrane Fouling ◽  
Membrane Separation ◽  
Separation Efficiency ◽  
High Energy ◽  
Separation Processes ◽  
Membrane Processes ◽  
Separation Technology ◽  
Pressure Driven

Background: Bioactive compounds from various natural sources have been attracting more and more attention, owing to their broad diversity of functionalities and availabilities. However, many of the bioactive compounds often exist at an extremely low concentration in a mixture so that massive harvesting is needed to obtain sufficient amounts for their practical usage. Thus, effective fractionation or separation technologies are essential for the screening and production of the bioactive compound products. The applicatons of conventional processes such as extraction, distillation and lyophilisation, etc. may be tedious, have high energy consumption or cause denature or degradation of the bioactive compounds. Membrane separation processes operate at ambient temperature, without the need for heating and therefore with less energy consumption. The “cold” separation technology also prevents the possible degradation of the bioactive compounds. The separation process is mainly physical and both fractions (permeate and retentate) of the membrane processes may be recovered. Thus, using membrane separation technology is a promising approach to concentrate and separate bioactive compounds. Methods: A comprehensive survey of membrane operations used for the separation of bioactive compounds is conducted. The available and established membrane separation processes are introduced and reviewed. Results: The most frequently used membrane processes are the pressure driven ones, including microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF). They are applied either individually as a single sieve or in combination as an integrated membrane array to meet the different requirements in the separation of bioactive compounds. Other new membrane processes with multiple functions have also been developed and employed for the separation or fractionation of bioactive compounds. The hybrid electrodialysis (ED)-UF membrane process, for example has been used to provide a solution for the separation of biomolecules with similar molecular weights but different surface electrical properties. In contrast, the affinity membrane technology is shown to have the advantages of increasing the separation efficiency at low operational pressures through selectively adsorbing bioactive compounds during the filtration process. Conclusion: Individual membranes or membrane arrays are effectively used to separate bioactive compounds or achieve multiple fractionation of them with different molecule weights or sizes. Pressure driven membrane processes are highly efficient and widely used. Membrane fouling, especially irreversible organic and biological fouling, is the inevitable problem. Multifunctional membranes and affinity membranes provide the possibility of effectively separating bioactive compounds that are similar in sizes but different in other physical and chemical properties. Surface modification methods are of great potential to increase membrane separation efficiency as well as reduce the problem of membrane fouling. Developing membranes and optimizing the operational parameters specifically for the applications of separation of various bioactive compounds should be taken as an important part of ongoing or future membrane research in this field.

Chapter 7 Forward Osmosis Membrane Separation Technology

2021 ◽  
pp. 267-324
Author(s):  
Lin Wang ◽  
Wanzhu Zhang ◽  
Bingzhi Dong
Keyword(s):  
Membrane Separation ◽  
Forward Osmosis ◽  
Separation Technology

Glycerol removal from biodiesel using membrane separation technology

Fuel ◽  
2010 ◽  
Vol 89 (9) ◽  
pp. 2260-2266 ◽  
Author(s):  
Jehad Saleh ◽  
André Y. Tremblay ◽  
Marc A. Dubé
Keyword(s):  
Membrane Separation ◽  
Separation Technology

A more Sustainable Polyurethane Membrane for Gas Separation at Room Temperature and Low Pressure

2019 ◽  
Vol 965 ◽  
pp. 125-132
Author(s):  
Gabriela H.G. Santos ◽  
Maíra A. Rodrigues ◽  
Helen Conceição Ferraz ◽  
Luiza Cristina Moura ◽  
Jussara Lopes de Miranda
Keyword(s):  
Room Temperature ◽  
Membrane Separation ◽  
Polymer Membranes ◽  
Low Pressure ◽  
Gas Separations ◽  
Low Power Consumption ◽  
X Ray ◽  
Separation Technology ◽  
Scanning Electron ◽  
Polyurethane Membrane

Membrane separation technology has been recently attracted more attention as an option for gas separations due to its compact system, ease of operation and low power consumption. In this study, polymer membranes with different percentages of polyurethane were synthesized and submitted to permeability and selectivity tests for the following gases, CO2, N2, O2 and CH4, at two pressures of 4 and 8 bar and at room temperature. The membranes were characterized by FTIR-ATR, Scanning electron microscope (SEM), Thermogravimetric analysis (TGA) and X-ray diffractometer (XRD). At low pressure of 4 bar and room temperature, the membrane with low percentage of PU, 10 %, presented the higher selectivity to CO2 in relation to both N2 and CH4. The same behavior was observed at a high pressure of 8 bar, with higher selectivity to CO2 in relation to all studied gases, N2, O2 and CH4, compared to the already analogous reported membranes submitted at greater pressures.

scholarly journals How Charge and Triple Size-Selective Membrane Separation of Peptides from Salmon Protein Hydrolysate Orientate their Biological Response on Glucose Uptake

2019 ◽  
Vol 20 (8) ◽  
pp. 1939 ◽  
Author(s):  
Loïc Henaux ◽  
Jacinthe Thibodeau ◽  
Geneviève Pilon ◽  
Tom Gill ◽  
André Marette ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Glucose Uptake ◽  
Membrane Separation ◽  
Protein Hydrolysate ◽  
Biological Response ◽  
Ultrafiltration Membranes ◽  
Selective Membrane ◽  
Insulin Control ◽  
By Products ◽  
Different Molecular Weight

The valorization of by-products from natural organic sources is an international priority to respond to environmental and economic challenges. In this context, electrodialysis with filtration membrane (EDFM), a green and ultra-selective process, was used to separate peptides from salmon frame protein hydrolysate. For the first time, the simultaneous separation of peptides by three ultrafiltration membranes of different molecular-weight exclusion limits (50, 20, and 5 kDa) stacked in an electrodialysis system, allowed for the generation of specific cationic and anionic fractions with different molecular weight profiles and bioactivity responses. Significant decreases in peptide recovery, yield, and molecular weight (MW) range were observed in the recovery compartments depending on whether peptides had to cross one, two, or three ultrafiltration membranes. Moreover, the Cationic Recovery Compartment 1 fraction demonstrated the highest increase (42%) in glucose uptake on L6 muscle cells. While, in the anionic configuration, both Anionic Recovery Compartment 2 and Anionic Recovery Compartment 3 fractions presented a glucose uptake response in basal condition similar to the insulin control. Furthermore, Cationic Recovery Compartment 3 was found to contain inhibitory peptides. Finally, LC-MS analyses of the bioassay-guided bioactive fractions allowed us to identify 11 peptides from salmon by-products that are potentially responsible for the glucose uptake improvement.

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