Spray Drying For The Food Industry

Spray drying is a mechanical process by which materials in liquid form can be converted into solid form such as powders. It is a rapid, continuous, cost-effective, reproducible and scalable process for producing dry powders from a fluid material by atomization through an atomizer into a hot drying gas medium, usually air. The Handbook on Spray Drying Applications for Food Industries deals with recent techniques adopted in spray drying systems for drying a vast array of food products, novel and emerging tools used for spray drying of antioxidant rich products, optimized conditions used for extraction and production of herbal powders by using spray drying techniques, and problems encountered during spray drying of acid and sugar rich foods and also various herbal powders. The book discusses the encapsulation of flavors by using the spray drying process providing a comparison with other encapsulation techniques. It reviews the retention of bioactive compounds and the effect of different parameters on bioactive compounds during spray drying of juice. Moreover, the book explains the effect of novel approaches of spray drying on nutrients. The book addresses strategies adopted for retention of nutrients and survival of probiotic bacteria during spray drying processing. It also identifies packaging material needed for enhanced product stability. The safety and quality aspects of manufacturing spray dried food products are discussed. Key Features: Describes the design of high performance spray drying systems Highlights the strategy adopted for maximizing the yield potential of various spray dried food products Discusses strategies adopted for retention of nutrients and survival of probiotic bacteria during spray drying process Contains charts, procedure flow sheets, tables, figures, photos, and a list of spray drying equipment suppliers This book will benefit entrepreneurs, food scientists, academicians and students by providing in-depth knowledge about spray drying of foods for quality retention and also for efficient consumer acceptability of finished products.

Spray drying is a well-established method for transforming liquid materials into dry powder form. Widely used in the food and pharmaceutical industries, this technology produces high quality powders with low moisture content, resulting in a wide range of shelf stable food and other biologically significant products. Encapsulation technology for bioactive compounds has gained momentum in the last few decades and a series of valuable food compounds, namely flavours, carotenoids and microbial cells have been successfully encapsulated using spray drying. Spray Drying Technique for Food Ingredient Encapsulation provides an insight into the engineering aspects of the spray drying process in relation to the encapsulation of food ingredients, choice of wall materials, and an overview of the various food ingredients encapsulated using spray drying. The book also throws light upon the recent advancements in the field of encapsulation by spray drying, i.e., nanospray dryers for production of nanocapsules and computational fluid dynamics (CFD) modeling. Addressing the basics of the technology and its applications, the book will be a reference for scientists, engineers and product developers in the industry.

Handbook of Food Powders: Chemistry and Technology, Second Edition covers current developments in food powder technology, such as Microbial decontamination of food powders, Gas and oil encapsulated powders, and Plant-based protein powders among other important topics. Sections introduce processing and handling technologies for food powders, focus on powder properties, including surface composition, rehydration and techniques to analyze the particle size of food powders, and highlight specialty food powders such as dairy powders, fruit and vegetable powders and coating foods with powders. Edited by a team of international experts in the field, this book continues to be the only quality reference on food powder technology available for the audiences of professionals in the food powder production and handling industries. It is also ideal for development and quality control professionals in the food industry who use powders in foods, and for researchers, scientists and academics interested in the field. Introduces six new chapters that incorporate the current developments in food powder technology Examines powder properties, including surface composition, shelf life and techniques used to examine particle size Focuses on specialty powders such as dairy, infant formulas, powdered egg, fruit and vegetable, and culinary and specialty products

Spray Drying for the Food Industry, in the Unit Operations and Processing Equipment in the Food Industry series, explains the fundamental and applied research in all aspects of spray drying from engineering to technology. The book thoroughly examines the spray drying of food materials with an emphasis on production, processing, engineering, characterization, and applications of spray dried food powders that enable novel/enhanced properties or functions. Divided into four sections, "Fundamentals of Spray drying process", "Application of spray drying for production of food powders", "Encapsulation of food bioactive ingredients by spray drying", and "Characterization and analysis of spray dried powders", all chapters emphasize the engineering, optimization and control of spray dryers and the relevant processing equipment. Written by experts in the field of food engineering, in a simple and dynamic way, this book targets industrial engineers working in the field of food processing and within food factories to make them more familiar with drying unit operations. Thoroughly explores novel applications of spray drying unit operations in food industries Helps readers improve the formulation of food powders with natural ingredients Promotes better control of spray drying with simulation and modeling tools

Drying is by far the most useful large scale operation method of keeping solid foods safe for long periods of time, and is of fundamental importance in most sectors of food processing. Drying operations need to be precisely controlled and optimized in order to produce a good quality product that has the highest level of nutrient retention and flavor whilst maintaining microbial safety. This volume provides an up to date account of all the major drying technologies employed in the food industry and their underlying scientific principles and effects. Various equipment designs are classified and described. The impact of drying on food properties is covered, and the micro-structural changes caused by the process are examined, highlighting their usefulness in process analysis and food design. Key methods for assessing food properties of dried products are described, and pre-concentration and drying control strategies are reviewed. Thermal hazards and fire/explosion detection and prevention for dryers are discussed in a dedicated chapter. Where appropriate, sample calculations are included for engineers and technologists to follow. The book is directed at food scientists and technologists in industry and research, food engineers and drying equipment manufacturers.

Drying is fundamental step in the maufacture of many foods. Although its primary function is to remove appropriate quantities of moisture it is, in many cases, also responsible for imparting the characteristic qualities that distinguish one product from another. This book provides a fundamental understanding of moisture transport in the drying of foods and of the physical and chemical changes that occur during drying. A comprehensive description and assessment of the different types of dryers available to the industry are given and factors effecting the operation, control and selection of dryers are described. The combination of practical information supported by relevant theory makes this an essential volume for industrial food engineers, those involved in equipment manufacture, process plant design and new product development in all food sectors where dried foods are used. It will also be of interest to academic researchers in this aspect of food engineering.

Spray-freeze-drying (SFD) is a synergistic drying technology that imbibes in it the merits of both spray drying and freeze-drying, whilst overcoming the limitations of these predecessor technologies. SFD produces uniquely powdered food and pharmaceutical products with porous microstructure and superior quality attributes. Owing to its atomization step and ultra-low-temperature operation, SFD is a competent drying technique for the production of valuable but sensitive bioactive components. Despite the costs and complexities involved, SFD has a competitive edge over the conventional drying techniques in providing distinctive product attributes. The applications of spray-freeze-drying in the area of food and bioproducts span across the product categories of instant food powders, dry flavors, active pharmaceutical ingredients, poorly water-soluble drugs, probiotics, proteins, enzymes and vaccines. Spray-Freeze-Drying of Foods and Bioproducts: Theory, Applications and Perspectives is the first exclusive title on this interesting drying technique. It provides a comprehensive understanding of the fundamentals of SFD and its food and pharmaceutical applications. The scope of this book, comprising 12 chapters, has been organizedunder four major headings: fundamentals of process-stages, applications with case-studies, recent advancements and the processing bottlenecks and solutions. Key Features Provides examples and case studies of nuances and intricacies associated with each stage of the spray-freeze-drying process Highlights the applications of spray-freeze-drying in the production of food products including soluble coffee, dairy powders, probiotics and flavors Serves as a ready-reckoner of characterization methods for spray-freeze-dried products Contains 200+ illustrations and tabulations The contents of this book are organized to cater to the knowledge needs of students, academicians, researchers and professionals in the food and pharmaceutical industry.

Handbook of Drying for Dairy Products is a complete guide to the field’s principles and applications, with an emphasis on best practices for the creation and preservation of dairy-based food ingredients. Details the techniques and results of drum drying, spray drying, freeze drying, spray-freeze drying, and hybrid drying Contains the most up-to-date research for optimizing the drying of dairy, as well as computer modelling options Addresses the effect of different drying techniques on the nutritional profile of dairy products Provides essential information for dairy science academics as well as technologists active in the dairy industry