Bioactive Delivery Systems For Lipophilic Nutraceuticals

There is growing interest in the food, supplements, cosmetics, and pharmaceutical industries in improving the healthiness of their products by incorporating lipophilic bioactive substances like oil-soluble vitamins (A, D and E), omega-3 fatty acids, and nutraceuticals (carotenoids, curcuminoids and flavonoids). However, there are many challenges that need to be overcome due to their poor water-solubility, chemical stability, and bioavailability. For this reason, there is interest in the development of effective encapsulation technologies to increase the efficacy of lipophilic bioactives. This book reviews the encapsulation systems currently available for delivering lipophilic bioactives, including their preparation, functionality, and application range, including nanoemulsions, emulsions, Pickering emulsions, HIPEs, microgels, organogels and liposomes. Chapters 1-2 review the biological activity of delivery systems and lipophilic bioactives. Chapters 3-5 describe the materials and preparation methods used to assemble delivery systems. Chapters 6-17 focus on the formation and application of different kinds of delivery systems. Chapter 18 discusses future trends in the development of bioactive delivery systems. Edited and authored by world renowned scholars, the book provides a state-of-the-art overview of the design, fabrication, and utilization of delivery systems for bioactives that will be useful for academic, government, and industrial scientists in fields such as pharmaceuticals, cosmetics, agriculture, chemical engineering, nutrition, and foods.

Lipophilic nutraceuticals include vitamins (A, C and E), carotenoids and flavanoids This book is intended to review the current bioactive delivery systems for lipophilic nutraceuticals, and introduce their mechanisms, preparation methods, and application range.

This book highlights recent innovative work in nutraceutical delivery systems, focusing on strategies and approaches for delivering maximum health benefits from foods. It presents recent research-oriented work from diverse global perspectives on isolation techniques for nutraceutical components, phytosomes, liposomes, solid dispersions, micelles, self-emulsifying drug delivery systems, microemulsions, solid lipid nanoparticles, polyelectrolyte complexes, oral delivery, polymeric nanoparticles, and more. The book begins with an overview of recent facts and diverse perspectives on the use of nutraceuticals in medicine and proceeds to discuss recent techniques in isolation of nutraceuticals from plants and in solubility enhancement. It looks at innovations and advances in nanoparticles-based nutraceutical delivery, such as in solid lipid nanoparticles (SLNs), fabrication methods of therapeutic nanoparticles, and polymeric nanoparticles-based nutraceutical delivery system. It also discusses vesicular delivery systems and biphasic systems for nutraceutical applications. The book also looks at the challenges in oral delivery and the latest taste-masking techniques.

The continued advancement in the sciences of functional foods and nutraceuticals has clearly established a strong correlation between consumption of bioactives and improved human health and performance. However, the efficacy and bioavailability of these bioactive ingredients (e.g., omega-3 oils, carotenoid antioxidants, vitamins, and probiotic bacteria) in foods often remains a challenge, due to their instability in food products and gastrointestinal tract, as well as their limited bioavailability. In some cases, these bioactive ingredients may impart an undesirable organoleptic characteristic to the final product, which hinders acceptance by consumers. In addressing these challenges, development of effective delivery systems is critical to meet the consumer needs for effective bioactives. The scientific knowledge behind developing effective delivery of bioactive components into modern and wide-ranging food products will be essential to reap their health-promoting benefits and to support the sustained growth of the functional foods market. Nanotechnology and Functional Foods: Effective Delivery of Bioactive Ingredients explores the current data on all aspects of nanoscale packing, carrying and delivery mechanisms of bioactives ingredients to functional foods. The book presents various delivery systems (including nano-emulsions, solid lipid nanoparticles, and polymeric nano-particles), their properties and interactions with other food components, and fate in the human body. Later chapters emphasize the importance of consumers' attitude towards nano-delivery for the success of the technology and investigate the challenges faced by regulatory agencies to control risks and harmonize approaches worldwide. The wide applicability of bioactive delivery systems with the purpose of improving food quality, food safety and human health will make this book a worthy reference for a diverse range of readers in industry, research and academia.

This book introduces recovery and stabilization of common bioactive materials in foods as well as materials science aspects of engineering stable bioactive delivery systems. The book also describes most typical unit operations and processes used in recovery and manufacturing of food ingredients and foods with stabilized bioactive components. The 15 chapters of the book discuss in detail substances that need to be protected and delivered via foods and beverages to achieve good stability, bioavailability and efficacy. Dedicated chapters present current and novel technologies used for stabilization and delivery of bioactive components. The material included covers formulation, stability, digestive release, bioaccessability and bioavailability. The text features a special emphasis on the materials science and technological aspects required for stabilization and successful production of foods with bioactive components. Consumer demand for healthier, yet satisfying food products is posing increasingly tough challenges for the food industry. Scientific research reveals new bioactive food components and new functionalities of known components. Food materials science has also developed to a stage where food materials can be designed and produced to protect sensitive components for their delivery in complex food products. Such delivery systems must meet high safety and efficacy requirements and regulations, as well as economic viability criteria and consumer acceptance.

Recent developments in nanoparticle and microparticle delivery systems are revolutionizing delivery systems in the food industry. These developments have the potential to solve many of the technical challenges involved in creating encapsulation, protection, and delivery of active ingredients, such as colors, flavors, preservatives, vitamins, minerals, and nutraceuticals. Nanoparticle- and Microparticle-based Delivery Systems: Encapsulation, Protection and Release of Active Compounds explores various types of colloidal delivery systems available for encapsulating active ingredients, highlighting their relative advantages and limitations and their use. Written by an international authority known for his clear and rigorous technical writing style, this book discusses the numerous kinds of active ingredients available and the issues associated with their encapsulation, protection, and delivery. The author takes a traditional colloid science approach and emphasizes the practical aspects of formulation of particulate- and emulsion-based delivery systems with food applications. He then covers the physicochemical and mechanical methods available for manufacturing colloidal particles, highlighting the importance of designing particles for specific applications. The book includes chapters devoted specifically to the three major types of colloidal delivery systems available for encapsulating active ingredients in the food industry: surfactant-based, emulsion-based, and biopolymer-based. It then reviews the analytical tools available for characterizing the properties of colloidal delivery systems, presents the mathematical models for describing their properties, and highlights the factors to consider when selecting an appropriate delivery system for a particular application backed up by specific case studies. Based on insight from the author’s own experience, the book describes why delivery systems are needed, the important factors to consider when designing them, methods of characterizing them, and specific examples of the range of food-grade delivery systems available. It gives you the necessary knowledge, understanding, and appreciation of developments within the current research literature in this rapidly growing field and the confidence to perform reliable experimental investigations according to modern international standards.

Liposomes have been used primarily for drug delivery, and there has been only been limited development of this technology in the food industry. This volume helps to fill that gap by focusing on the advanced trends and applications of liposomes in the nutraceuticals and functional foods industry. The volume begins by discussing the processes and protocols of formation of liposomes and the structures of liposomes produced by different methods. It then reviews their physico-chemical properties and the science of encapsulation of bioactive compounds using liposomes. It continues with an overview of liposomal methods, protocols, preparation techniques and explores the uses of liposomes as drug carriers but focuses primarily on liposomal carrier systems and technology in bioactive functional foods and nutraceuticals. The volume presents advances on liposomes as anti-tubercular and anticancer delivery systems and also discusses liposomal supplements. Liposomes for Functional Foods and Nutraceuticals: From Research to Application will be a valuable resource for those who produce lipids and those who seek to incorporate them into appropriate food products.

Nutrient Delivery: Nanotechnology in the Agri-Food Industry, Volume Five, discusses the fabrication, merits, demerits, applications, and bioavailability enhancement mechanisms of various nanodelivery systems. Recent developments in various nanodelivery systems are also highlighted. Volume 5 contains twenty chapters, prepared by outstanding international researchers from Argentina, Brazil, Canada, China, Croatia, India, Iran, Ireland, México, Pakistan, Portugal, Serbia, Sri Lanka, and the United States. In recent years, the delivery of micronutrients at nanoscale has been widely studied as these systems have the potential to improve bioavailability, enable controlled release and enhance stability of food bioactives to a greater extent. The nanodelivery systems typically consist of the food bioactive compound encapsulated and stabilized in food grade ingredients such as lipids, proteins or polysaccharides with diameters ranging from 10 nm to 1000 nm. Among these, the lipid based delivery systems such as nanoemulsions, solid lipid nanoparticles, nanoliposomes and micelles are widely studied for the delivery of lipophilic bioactive compounds. These delivery vehicles improve the solubility, permeability, stability and bioavailability of the lipophilic compounds thereby enhancing their potential for oral delivery and functional food development. On the other hand, the hydrophilic bioactives are delivered through protein, polysaccharide or biopolymer based colloidal nanosystems such as hydrogels, nanogels and polymer nanoparticles. The major concern other than solubility is the intestinal permeability of the micronutrients. For instance, the delivery system for compounds with poor intestinal permeability and low solubility need to be carefully designed using suitable lipids and surfactants. Offers updated material for undergraduate and postgraduate students in food science, biotechnology, and related engineering fields Provides a valuable resource of recent scientific progress, along with most known applications of nanomaterials in the food industry for researchers, engineers, and academics Includes novel opportunities and ideas for developing or improving technologies in the food industry