Marine Medicinal Glycomics

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Marine Medicinal Glycomics

Author : Vitor H. Pomin
Publisher : Nova Science Publishers
ISBN 13 : 9781626185975
Total Pages : 0 pages
Book Rating : 4.1/5 (859 download)

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Book Synopsis Marine Medicinal Glycomics by : Vitor H. Pomin

Download or read book Marine Medicinal Glycomics written by Vitor H. Pomin and published by Nova Science Publishers. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glycomics is an international project that analyses systematically and comparatively the overall and/or specific structural and biological properties of carbohydrates, also known as sugars or glycans, within a repertoire from a given type of cell, tissue, organism, kingdom, or even from a certain environment, as found under specific conditions. Glycomics is one of the latest omics projects to be launched into biology. This was because carbohydrates had been primarily considered as a mere class of structural or energetic molecules. Besides that, structural and functional studies in glycomics are more challenging than other projects, and analytical limitations in glycobiology have impaired the progress. However, with the development of technology, and mostly through recent scientific achievements, innumerous vital biological functions have been uncovered and attributed to the sugars. Moreover, certain glycans may also exhibit effective medicinal properties which have in turn awakened a great interest by pharmaceutical companies.This book compiles and illustrates some of these recent achievements concerning the principle examples of marine sugars with medical properties, such as chitin, chitosan, sulphated polysaccharides, and glycoconjugates. Their therapeutic actions are very broad since they comprise beneficial effects in many systems such as inflammation, coagulation, thrombosis, cancer growth/metastasis, and vascular biology. Additional information about the enzymatic synthesis, chemically modified derivatives, relevance of composing units, and other biochemical properties of these marine medicinal glycans are also discussed herein.

Glycan Diversity in Fungi, Bacteria and Sea Organisms

Author : Eliana Barreto-Bergter
Publisher : Frontiers Media SA
ISBN 13 : 2889199428
Total Pages : 87 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Glycan Diversity in Fungi, Bacteria and Sea Organisms by : Eliana Barreto-Bergter

Download or read book Glycan Diversity in Fungi, Bacteria and Sea Organisms written by Eliana Barreto-Bergter and published by Frontiers Media SA. This book was released on 2016-09-07 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cell surface of fungi, bacteria and sea organisms is highly glycosylated. These glycans are oligo- or polysaccharide molecules that can be secreted or attached to protein or lipids forming glycoconjugates. They present extraordinary structural diversity that could explain their involvement in many fundamental cellular processes, including growth, differentiation and morphogenesis. Considerable advances have been made on the structural elucidation of these glycans. Their primary structures were determined based on a combination of mass spectrometry and NMR spectroscopy techniques. The combination of these sensitive and powerful techniques has allowed us to increase our structural knowledge of a wide variety of glycans expressed by different fungi, bacteria and sea organisms.

Marine Glycosides

Author : Thomas E Adrian
Publisher : MDPI
ISBN 13 : 3038979023
Total Pages : 264 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Marine Glycosides by : Thomas E Adrian

Download or read book Marine Glycosides written by Thomas E Adrian and published by MDPI. This book was released on 2019-05-03 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been a steady increase in the publication of papers on the chemistry, biology, and potential clinical uses of marine glycosides. Indeed, more than half of the papers published in this field are less than a decade old. Glycosides have been isolated from species as diverse as algae, fungi, anthozoans, and echinoderms. Even fish of the genus Pardachirus produce glycosides, which they use as shark repellents.The major interest in these compounds as potential drugs stems from their broad spectrum of biological effects. They have been shown to have antimicrobial, antifungal, anti-inflammatory, immune modulatory, and anticancer effects. The anticancer effects of marine glycosides include cell cycle suppression, the induction of apoptosis, and the inhibition of migration, invasion, and metastasis, as well as antiangiogenesis. Marine glycosides influence membrane permeability and have been shown to influence membrane transport at the molecular level through effects on transport carriers and pumps, as well as effects on ligand-gated and voltage-gated channels. Various marine glycosides have been shown to activate sphingomyelinase and ceramide synthesis, to inhibit topoisomerase activity, receptor tyrosine kinase activity, and multidrug resistance protein activity, and to antagonize eicosanoid receptors.This Special Issue covers the entire scope of marine organism-derived glycosides that are of potential value as pharmaceutical agents or leads. These include, but are not limited to, tetracyclic triterpene glycosides, other triterpene glycosides, steroid glycosides, and glycosides of non-isoprenoid aglycones.

Marine Biochemistry

Author : Se-Kwon Kim
Publisher : CRC Press
ISBN 13 : 1000629023
Total Pages : 387 pages
Book Rating : 4.0/5 (6 download)

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Book Synopsis Marine Biochemistry by : Se-Kwon Kim

Download or read book Marine Biochemistry written by Se-Kwon Kim and published by CRC Press. This book was released on 2022-10-12 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the latest comprehensive methods for isolation and other novel techniques for marine product development. Furthermore, this book offers knowledge on the biological, medical, and industrial applications of marine-derived medicinal food substances. There has been a tremendous increase in the products derived from marine organisms for commercial application in industries every year. Functional foods of medicinal value are particularly in demand as new technology allows the stabilization of natural ingredients and their availability in pure forms to solve various human diseases. Marine flora and fauna have essential elements and trace minerals that nurture various hormones produced in the endocrine system to regulate the respective metabolisms, thereby providing a safe and healthy life to humans. The overall presentation and clear demarcation of the contents by worldwide contributions is a novel entry point into the market of medicinal foods from the sea. The exploration of marine habitats for novel materials are discussed throughout the book. The exploration and exploitation of the biochemistry of sea flora and fauna are limited, and this book extends the research possibilities into numerous marine habitats. Various approaches for extracting and applying the flora and fauna are discussed. This book will be of value to researchers, marine biotechnologists, and medical practitioners, due to the vast information, as well as industrial and medical applications of marine substances all in one place.

Marine Glycobiology, Glycomics and Lectins

Author : Yasuhiro Ozeki
Publisher : MDPI
ISBN 13 : 3039218204
Total Pages : 176 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Marine Glycobiology, Glycomics and Lectins by : Yasuhiro Ozeki

Download or read book Marine Glycobiology, Glycomics and Lectins written by Yasuhiro Ozeki and published by MDPI. This book was released on 2019-11-20 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glycans (carbohydrate chains) of marine creatures are rich and diverse in polysaccharides, glycoproteins, and glycolipids. The chains that are metabolized by glycan-related enzymes (glycosyltransferases and glycosidases) are recognized by glycan-binding proteins (lectins) which regulate cellular processes such as growth, differentiation, and death. Marine glycomics that involves the genome and transcriptome accelerates our understanding of the evolution of glycans, glycan-related enzymes, and lectins. From 2017 to 2019, the Special Issue “Marine Glycobiology, Glycomics and Lectins” of the journal Marine Drugs published scientific articles and reviews, on the background of “glycobiology”—that is, glycan-based biosciences. The aim was to promote the discovery of novel biomolecules that contribute to drug development and clinical studies. This has great potential for establishing connections between the fields of both human health and marine life sciences. This book contains 11 scientific papers representing current topics in comprehensive glycosciences related to therapeutic agents from marine natural products, as outlined.

Industrial Applications of Marine Biopolymers

Author : Parappurath Narayanan Sudha
Publisher : CRC Press
ISBN 13 : 1315313529
Total Pages : 608 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Industrial Applications of Marine Biopolymers by : Parappurath Narayanan Sudha

Download or read book Industrial Applications of Marine Biopolymers written by Parappurath Narayanan Sudha and published by CRC Press. This book was released on 2017-07-06 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial Applications of Marine Biopolymers presents different classes of marine biopolymers and their industrial applications, demonstrating the precious value of ocean resources to society. This timely volume discusses the exceedingly useful polymers derived from these materials that are biodegradable, biocompatible, and at times water soluble. Direct use or chemically modified forms of such biomaterials have many chemical sites, making them suitable for varied types of industrial applications. In addition, this book also addresses current global challenges of conservation, including extended drought conditions and the need for improved agricultural methods, together with new bio-medical developments. It is suitable for anyone who has an interest in the industrial applications of biopolymers.

The World of Sea Cucumbers

Author : Annie Mercier
Publisher : Elsevier
ISBN 13 : 0323953786
Total Pages : 856 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis The World of Sea Cucumbers by : Annie Mercier

Download or read book The World of Sea Cucumbers written by Annie Mercier and published by Elsevier. This book was released on 2023-11-10 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: The World of Sea Cucumbers: Challenges, Advances, and Innovations provides broad coverage of sea cucumber biology, ecology, fisheries, aquaculture, and trade while also bringing forward novel cultural, socioeconomic and scientific topics related to commercial and non-commercial species worldwide. Written by international experts in their respective fields, the book offers a unique outlook into the fascinating world of sea cucumbers while also providing valuable information to various stakeholders and researchers. Commercial fisheries and aquaculture programs are addressed, especially as they relate to emerging species, but the book also covers novel, understudied or lesser-known biological, ecological, and commercial aspects. The involvement of Indigenous peoples and minorities in various community-level initiatives and on the cultural significance/impact of sea cucumbers in many regions are also examined. Finally, breakthroughs and emerging biotechnologies centered on sea cucumbers are presented. Brings together a network of experts covering broad sea cucumber topics, from basic biology and commercial trade to socioeconomic value and novel biotechnologies Offers worldwide coverage, including Asia, the Indo-Pacific, Africa, Northern Europe, North and South America, and the poles Raises global awareness on little-known facts of sea cucumber importance

Advances in Marine Chitin and Chitosan

Author : David Harding
Publisher : MDPI
ISBN 13 : 3038421308
Total Pages : 485 pages
Book Rating : 4.0/5 (384 download)

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Book Synopsis Advances in Marine Chitin and Chitosan by : David Harding

Download or read book Advances in Marine Chitin and Chitosan written by David Harding and published by MDPI. This book was released on 2018-10-02 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Advances in Marine Chitin and Chitosan" that was published in Marine Drugs

Enzymatic Technologies for Marine Polysaccharides

Author : Antonio Trincone
Publisher : CRC Press
ISBN 13 : 0429608438
Total Pages : 527 pages
Book Rating : 4.4/5 (296 download)

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Book Synopsis Enzymatic Technologies for Marine Polysaccharides by : Antonio Trincone

Download or read book Enzymatic Technologies for Marine Polysaccharides written by Antonio Trincone and published by CRC Press. This book was released on 2019-04-08 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bioactivity potential of marine polysaccharides has long been considered an underexploited aspect. These molecules found in seaweed, microalgae, bacteria, and animal fish (shellfish, mollusks, etc.) and the derived oligosaccharides need to be explored thoroughly with an interdisciplinary approach. They are an extraordinary source of chemical diversity, and the literature highlights many applicative fields, including the food industry, cosmetics, biomedicine, agriculture, environmental protection, wastewater management, etc. More recently, a new challenge has emerged: the exploitation of marine biomass as the source of sustainable energy to participate in the future replacement of fossil resources. Enzymatic Technologies for Marine Polysaccharides provides insight into the recent research developments of marine polysaccharides and their current and potential applications. The first section of the book explores the diversity of marine polysaccharides from various angles, including a description of the chemical complexity and current applications and new perspectives in food, pharmaceutical, cosmetics, and biomaterials offered by recent research. Efficient valorization of the marine polysaccharide biomass requires a rigorous analysis of the polysaccharides structure and their biological properties. The second section of the book concerns the development of extraction techniques and the improvement of the methods aimed at the characterization of their structure and function. Finally, the third and last section of the book articulates the enzymatic technologies from the discovery of novel enzymes to their production pipelines related to the fields of biorefinery, food, pharmaceutics, and other fine chemicals. Presents the latest research in marine oligosaccharides and polysaccharides Written by world-class researchers in marine enzyme technology Discusses the latest developments in extraction methods Presents a detailed overview of enzymatic routes for modification, production, and synthesis of marine oligosaccharides Contains extensive references at the end of each chapter to enhance further study

Marine Glycobiology

Author : Se-Kwon Kim
Publisher : CRC Press
ISBN 13 : 1315354217
Total Pages : 1265 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Marine Glycobiology by : Se-Kwon Kim

Download or read book Marine Glycobiology written by Se-Kwon Kim and published by CRC Press. This book was released on 2016-10-14 with total page 1265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine glycobiology is an emerging and exciting area in the field of science and medicine. Glycobiology, the study of the structure and function of carbohydrates and carbohydrate-containing molecules, is fundamental to all biological systems and represents a developing field of science that has made huge advances in the last half-century. This book revolutionizes the concept of marine glycobiology, focusing on the latest principles and applications of marine glycobiology and their relationships.

Marine Pollution and Microbial Remediation

Author : Milind Mohan Naik
Publisher : Springer
ISBN 13 : 9811010447
Total Pages : 270 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Marine Pollution and Microbial Remediation by : Milind Mohan Naik

Download or read book Marine Pollution and Microbial Remediation written by Milind Mohan Naik and published by Springer. This book was released on 2016-09-23 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine environment is the largest habitat covering approximately 70% of the total earth surface. Oceans are the main regulatory agent of earth’s climate and harbour a huge diversity of living organisms. Marine environment provide a unique ecological niche to different microbes which play a significant role in nutrient recycling as well as various environmental activities. However with rapid industrialization, urbanisation, ship trafficking and mining activities enormous amounts of waste including heavy metals, hydrocarbons, chemicals, dyes, organic load, agriculture waste, pesticides, antifoulants (e.g. tributyltin) and bacterial pathogens have accumulated in marine/estuarine environments over several decades and pose a serious threat to marine macro and micro biota and humans and therefore require special attention. However some natural marine microbes are known to possess diverse resistance mechanisms and degradation pathways to variety of toxic pollutants and these unique characteristics of marine/estuarine bacteria proved to be an ideal tool in bioremediation of contaminated marine and estuarine environmental sites. Reclamation of marine polluted environments using marine microbes has been found to be effective, affordable and ecofriendly technological solution over conventional physical and chemical methods. Objective of this book is focus on marine pollution and application of marine microorganisms in cost effective and ecofriendly methods of pollution abatement.

Synthetic Glycomes

Author : Wanyi Guan
Publisher : Royal Society of Chemistry
ISBN 13 : 1788011643
Total Pages : 488 pages
Book Rating : 4.7/5 (88 download)

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Book Synopsis Synthetic Glycomes by : Wanyi Guan

Download or read book Synthetic Glycomes written by Wanyi Guan and published by Royal Society of Chemistry. This book was released on 2019-04-23 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glycans play essential roles in diverse biological and etiological processes and their structural complexity endow various functions. The glycome is the entire set of glycans produced by an individual organism. As the glycan microarray emerged, a good amount of knowledge has been obtained in understanding the functions of glycans. However, limited accessibility of glycans is a major obstacle to the functional glycomics study. Although isolation from biology samples provided some structures, the low abundance of glycans obtained and the difficulty in complete structural assignment restricted the subsequent assay. To circumvent this limitation, many synthetic strategies, including chemical, enzymatic and chemo-enzymatic ones have been developed to make libraries of structurally defined complex glycans available. The glycans provided by these techniques combined with high-throughput glycoarray techniques have broadened and deepened our understanding about functional glycomics. The aim of this book is to provide a comprehensive review of the current state of the synthetic glycome and a brief introduction of the application of the synthetic glycome in glycoarray assay. Accordingly, synthetic strategies toward generating glycans with comprehensive structures as well as the glycoarrays to unveil the glycan functions are described in this book.

Phytochemicals as Lead Compounds for New Drug Discovery

Author : Chukwuebuka Egbuna
Publisher : Elsevier
ISBN 13 : 0128178914
Total Pages : 382 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Phytochemicals as Lead Compounds for New Drug Discovery by : Chukwuebuka Egbuna

Download or read book Phytochemicals as Lead Compounds for New Drug Discovery written by Chukwuebuka Egbuna and published by Elsevier. This book was released on 2019-09-07 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytochemicals as Lead Compounds for New Drug Discovery presents complete coverage of the recent advances in the discovery of phytochemicals from medicinal plants as models to the development of new drugs and chemical entities. Functional bioactive compounds of plant origin have been an invaluable source for many human therapeutic drugs and have played a major role in the treatment of diseases around the world. These compounds possess enormous structural and chemical diversity and have led to many important discoveries. This book presents fundament concepts and factors affecting the choice for plant-based products, as well as recent advances in computer-aided drug discovery and FDA drug candidacy acceptance criteria. It also details the various bioactive lead compounds and molecular targets for a range of life-threatening diseases including cancer, diabetes, and neurodegenerative diseases. Written by a global team of experts, Phytochemicals as Lead Compounds for New Drug Discovery is an ideal resource for drug developers, phytochemists, plant biochemists, food and medicinal chemists, nutritionists and toxicologists, chemical ecologists, taxonomists, analytical chemists, and other researchers in those fields. It will also be very valuable to professors, students, and researchers in this domain. Presents fundamental concepts and factors affecting choice for plant-based products Details the FDA drug candidacy acceptance criteria, including bottlenecks and way forward Highlights recent advances in computational-based drug discovery Focuses on the discovery of new drugs and potential druggable targets for the treatment of chronic diseases of world importance

Advances in Physicochemical Properties of Biopolymers (Part 1)

Author : Martin Masuelli
Publisher : Bentham Science Publishers
ISBN 13 : 1681084538
Total Pages : 542 pages
Book Rating : 4.6/5 (81 download)

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Book Synopsis Advances in Physicochemical Properties of Biopolymers (Part 1) by : Martin Masuelli

Download or read book Advances in Physicochemical Properties of Biopolymers (Part 1) written by Martin Masuelli and published by Bentham Science Publishers. This book was released on 2017-07-05 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last two decades have seen a number of significant advances in the methodology for evaluating the molecular weight distributions of polydispersed macromolecular systems in solution at the molecular level. This reference presents reviews on the progress in different analytical and characterization methods of biopolymers. Readers will find useful information about combinations of complex biopolymer analysis such as chromatographic or membrane based fractionation procedures combined with multiple detectors on line (multi-angle laser light scattering or MALLS). Key topics include: • refractive index, UV-Vis absorbance and intrinsic viscosity detection systems, • advances in SEC-MALLS (size exclusion chromatography coupled to multi-angle laser light scattering) and FFF-MALLS (field flow fractionation coupled on line to MALLS), • HPSEC-A4F-MALLS, matrix-assisted laser-desorption ionization (MALDI) • electrospray ionization (ESI) mass spectrometry • nuclear magnetic resonance (NMR) spectroscopy This reference is intended for students of applied chemistry and biochemistry who require information about biopolymer analysis and characterization.

Algae Based Polymers, Blends, and Composites

Author : Khalid Mahmood Zia
Publisher : Elsevier
ISBN 13 : 0128123613
Total Pages : 738 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Algae Based Polymers, Blends, and Composites by : Khalid Mahmood Zia

Download or read book Algae Based Polymers, Blends, and Composites written by Khalid Mahmood Zia and published by Elsevier. This book was released on 2017-06-19 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Algae Based Polymers, Blends, and Composites: Chemistry, Biotechnology and Material Sciences offers considerable detail on the origin of algae, extraction of useful metabolites and major compounds from algal bio-mass, and the production and future prospects of sustainable polymers derived from algae, blends of algae, and algae based composites. Characterization methods and processing techniques for algae-based polymers and composites are discussed in detail, enabling researchers to apply the latest techniques to their own work. The conversion of bio-mass into high value chemicals, energy, and materials has ample financial and ecological importance, particularly in the era of declining petroleum reserves and global warming. Algae are an important source of biomass since they flourish rapidly and can be cultivated almost everywhere. At present the majority of naturally produced algal biomass is an unused resource and normally is left to decompose. Similarly, the use of this enormous underexploited biomass is mainly limited to food consumption and as bio-fertilizer. However, there is an opportunity here for materials scientists to explore its potential as a feedstock for the production of sustainable materials. Provides detailed information on the extraction of useful compounds from algal biomass Highlights the development of a range of polymers, blends, and composites Includes coverage of characterization and processing techniques, enabling research scientists and engineers to apply the information to their own research and development Discusses potential applications and future prospects of algae-based biopolymers, giving the latest insight into the future of these sustainable materials

Marine Organisms as Model Systems in Biology and Medicine

Author : Malgorzata Kloc
Publisher : Springer
ISBN 13 : 3319924869
Total Pages : 624 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Marine Organisms as Model Systems in Biology and Medicine by : Malgorzata Kloc

Download or read book Marine Organisms as Model Systems in Biology and Medicine written by Malgorzata Kloc and published by Springer. This book was released on 2018-08-06 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the potential advantages of using marine invertebrates like tunicates, echinoderms, sponges and cephalopods as models in both biological and medical research. Bioactive compounds found in marine organisms possess antibacterial, antifungal, anti-diabetic and anti-inflammatory properties, and can affect the immune and nervous systems. Despite substantial research on the medicinal attributes of various marine invertebrates, they are still very much underrepresented in scientific literature: the majority of cell, developmental and evolutionary scientific journals only publish research conducted on a few well-known model systems like Drosophila melanogaster or Xenopus laevis. Addressing that gap, this book introduces readers to new model organisms like starfish or nemertera. By showing their benefits with regard to regeneration, stem cell research and Evo-Devo, the authors provide a cross-sectional view encompassing various disciplines of biological research. As such, this book will not only appeal to scientists currently working on marine organisms, but will also inspire future generations to pursue research of their own.

Marine biomolecules

Author : Antonio Trincone
Publisher : Frontiers Media SA
ISBN 13 : 2889196615
Total Pages : 99 pages
Book Rating : 4.8/5 (891 download)

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Book Synopsis Marine biomolecules by : Antonio Trincone

Download or read book Marine biomolecules written by Antonio Trincone and published by Frontiers Media SA. This book was released on 2015-10-02 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oceans include the greatest extremes of pressure, temperature and light, and habitats can range from tropical waters to ocean trenches, several kilometers below sea level at high pressure. With its 70% of the surface of our planet marine ecosystem still remains largely unexplored, understudied and underexploited in comparison with terrestrial ecosystems, organisms and bioprocesses. The biological adaptation of marine organisms to a wide range of environmental conditions in the specific environment (temperature, salinity, tides, pressure, radiation, light, etc.) has made them an enormous reservoir of interesting biological material for both basic research and biotechnological improvements. As a consequence marine ecosystem is valued as a source of enzymes and other biomolecules exhibiting new functions and activities to fulfill human needs. Indeed, in recent years it has been recognised as an untapped source of novel enzymes and metabolites even though, with regard to the assignment of precise biological functions to genes, proteins and enzymes, it is still considered as the least developed. Using metagenomics to recover genetic material directly from environmental samples, this biogenetic diversification can be accessed but despite the contributions from metagenomic technologies the new field requires major improvements. A few words on the complexity of marine environments should be added here. This complexity ranges from symbiotic relationships to biology and chemistry of defence mechanisms and from chemoecology of marine invasions up to the strategies found in prokaryotes to adapt to extreme environments. The interdisciplinary study of this complexity will enable researchers to find an arsenal of enzymes and pathways greatly demanded in biotechnological applications. As far as marine enzymes are concerned they may carry novel chemical and stereochemical properties, thus biocatalytically oriented studies (testing of suitable substrates, appropriate checking of reaction conditions, study of stereochemical asset of catalysis) should be performed to appropriately reveal this “chemical biodiversity” which increases interest for these enzymes. Among other biomolecules, polysaccharides are the most abundant renewable biomaterial found on land and in oceans. Their molecular diversity is very interesting; except polysaccharides used traditionally in food and non-food industries, the structure and the functionality of most of them are unknown and unexplored. Brown seaweeds synthesize unique bioactive polysaccharides: laminarans, alginic acids and fucoidans. A wide range of biological activities (anticoagulant, antitumor, antiviral, anti-inflammation, etc.) have been attributed to fucoidans and their role with respect to structure-activity relationship is still under debate. In this Research Topic, we wish to centralize and review contributions, idea and comments related to the issues above. In particular results of enzymatic bioprospecting in gross marine environment will be acknowledged along with research for structural characterization and biological function of biomolecules such as marine polysaccharides and all kind of research related to the complexity of bioprocesses in marine environments. Inter- and multi-disciplinary approach to this field is favoured in this Research Topic and could greatly be facilitated by the web and open access nature as well.