Suchergebnisse

Intro -- Preface -- Contents -- About the Editors -- Part I: General Overview of Membrane Separation Technologies for Bioactives -- Chapter 1: Introduction to Membrane Separation of Bioactive Compounds -- Challenges and Opportunities -- 1 Introduction -- 2 Membrane Technologies: The Emerging Pathway for Recovering Bioactive Compounds -- 3 Challenges in Membrane Technologies for Bioactive Compounds Separation -- 4 Conclusion -- References -- Chapter 2: An Overview of Food Bioactive Compounds and Their Properties -- 1 Introduction -- 2 Phenolic Compounds -- 2.1 Phenolic Acids -- 2.1.1 Hydroxycinnamic Acids -- 2.1.2 Hydroxybenzoic Acids -- 2.2 Flavonoids -- 2.2.1 Flavones -- 2.2.2 Flavonols -- 2.2.3 Flavanones -- 2.2.4 Isoflavonoids -- 2.2.5 Flavanols, Flavan-3-ols, or Catechins -- 2.2.6 Anthocyanins -- 2.3 Other Phenolics -- 2.3.1 Stilbenes -- 2.3.2 Lignans -- 3 Other Phytochemical Compounds: Terpenes, Alkaloids and Glucosinolates -- 4 Carotenoids and Sterols -- 5 Bioactive Peptides and Proteins -- 6 Essential Fatty Acids -- 7 Essential Oils -- 8 Vitamins and Minerals -- 9 Dietary Fibers: Prebiotics and Probiotics -- References -- Part II: Membrane Separation of Common Food Bioactive Compounds -- Chapter 3: Purification of Phenolic-Based Molecules from Agro-Food By-products via Pressure-Driven Membrane Processes -- 1 Introduction -- 2 Pressure-Driven Membrane Processes -- 3 Recovery of Phenolics from Agro-Food By-products -- 3.1 Olive Mill Wastewaters -- 3.2 Citrus By-products -- 3.3 Wine By-products -- 4 Conclusions and Future Trends -- References -- Chapter 4: Food Bioactive Ingredients Processing Using Membrane Distillation -- 1 Introduction -- 2 Principles of Membrane Distillation -- 2.1 Process Fundamentals and Theory -- 2.2 Membrane Requirements -- 2.3 MD Configurations -- 2.4 Osmotic Distillation -- 2.5 Membrane Modules.

Membrane gas separation has attracted the attention of chemical engineers for the selective separation of gases. Among the different types of membranes used, ultrathin membranes are recognized to break the trade-off between selectivity and permeance to provide ultimate separation. Such success has been associated with the ultrathin nature of the selective layer as well as their defect-free structure. These membrane features can be obtained from specific membrane preparation procedures used, in which the intrinsic properties of different nanostructured materials (e.g., polymers, zeolites, covalent–organic frameworks, metal–organic frameworks, and graphene and its derivatives) also play a crucial role. It is likely that such a concept of membranes will be explored in the coming years. Therefore, the goal of this review study is to give the latest insights into the use of ultrathin selective barriers, highlighting and describing the primary membrane preparation protocols applied, such as atomic layer deposition, in situ crystal formation, interfacial polymerization, Langmuir–Blodgett technique, facile filtration process, and gutter layer formation, to mention just a few. For this, the most recent approaches are addressed, with particular emphasis on the most relevant results in separating gas molecules. A brief overview of the fundamentals for the application of the techniques is given. Finally, by reviewing the ongoing development works, the concluding remarks and future trends are also provided. ; R. Castro-Muñoz acknowledges the School of Science and Engineering and the FEMSA-Biotechnology Center at Tecnológico de Monterrey for their support through the Bioprocess (0020209I13) Focus Group. Financial support from the Spanish Ministry of Science, Innovation and Universities and FEDER (MAT2016-77290-R), the Aragón Government (T43-17R) and the ESF is also gratefully acknowledged. K. V. Agrawal acknowledges support from Swiss National Science Foundation (SNSF) Assistant Professor energy grant (PYAPP2_173645) and European Research Council (ERC) starting grant (805437 Ultimate Membranes). ; Peer reviewed