Qualitative Analysis Of Food Products

Qualitative control and analysis of food products is a requirement for food industries, both in terms of quality assurance and food safety management systems. Analysis of foods is continuously requiring the development of more robust, efficient, sensitive, and cost-effective analytical methodologies to guarantee the safety, quality, authenticity, and traceability of foods in compliance with legislation and consumers' demands. Different analyses include microbiological and chemical analyses, from simple to complex, from old to modern technologies. Hence, fundamental and/or state-of-the-art methods of the development, optimization, and practical implementation in routine laboratories, and validation of these methods for the monitoring of food safety and quality, are employed. Methodologies for food microbial contaminants, food chemistry and toxicology, food quality, food authenticity, and food traceability have been presented and discussed in this Special Issue.

Food laws were fIrst introduced in 1860 when an Act for Preventing the Adulteration of Articles of Food or Drink was passed in the UK. This was followed by the Sale of Food Act in 1875, also in the UK, and later, in the USA, by the Food and Drugs Act of 1906. These early laws were basically designed to protect consumers against unscrupulous adulteration of foods and to safeguard consumers against the use of chemical preservatives potentially harmful to health. Subsequent laws, introduced over the course of the ensuing century by various countries and organisations, have encompassed the features of the early laws but have been far wider reaching to include legislation relating to, for example, specifIc food products, specifIc ingredients and specifIc uses. Conforming to the requirements set out in many of these laws and guidelines requires the chemical and physical analysis of foods. This may involve qualitative analysis in the detection of illegal food components such as certain colourings or, more commonly, the quantitative estimation of both major and minor food constituents. This quantitative analysis of foods plays an important role not only in obtaining the required information for the purposes of nutritional labelling but also in ensuring that foods conform to desired flavour and texture quality attributes. This book outlines the range oftechniques available to the food analyst and the theories underlying the more commonly used analytical methods in food studies.

This book provides information on the techniques needed to analyze foods in laboratory experiments. All topics covered include information on the basic principles, procedures, advantages, limitations, and applications. This book is ideal for undergraduate courses in food analysis and is also an invaluable reference to professionals in the food industry. General information is provided on regulations, standards, labeling, sampling and data handling as background for chapters on specific methods to determine the chemical composition and characteristics of foods. Large, expanded sections on spectroscopy and chromatography also are included. Other methods and instrumentation such as thermal analysis, ion-selective electrodes, enzymes, and immunoassays are covered from the perspective of their use in the analysis of foods. A website with related teaching materials is accessible to instructors who adopt the textbook.

Consumer acceptance is the key to successful food products. It is vital, therefore, that product development strategies are consumer-led for food products to be well received. Consumer-led food product development presents an up-to-date review of the latest scientific research and methods in this important area. Part one gives the reader a general introduction to factors affecting consumer food choice. Chapters explore issues such as sensory perception, culture, ethics, attitudes towards innovation and psychobiological mechanisms. Part two analyses methods to understand consumers’ food-related attitudes and how these methods can be effectively used, covering techniques such as means-end chains and the food-related lifestyle approach. The final part of the book addresses a wide variety of methods used for consumer-led product development. Opportunity identification, concept development, difference testing and preference trials are discussed, as well as the use of techniques such as just-about-right scales and partial least squares methods. Written by an array of international experts, Consumer-led food product development is an essential reference for product developers in the food industry. Introduces the factors affecting consumer food choice Explores issues such as sensory perception, culture and ethics Analyses methods to understand food related attitudes

Gas chromatography is widely used in applications involving food analysis. Typical applications pertain to the quantitative and/or qualitative analysis of food composition, natural products, food additives, and flavour and aroma components. Providing an up-to-date look at the significant advances in the technology, this book includes details on novel sample preparation processes; conventional, high-speed multidimensional gas chromatography systems, including preparative instrumentation; gas chromatography–olfactometry principles; and, finally, chemometrics principles and applications in food analysis. Aimed at providing the food researcher or analyst with detailed analytical information related to advanced gas chromatography technologies, this book is suitable for professionals and postgraduate students learning about the technique in the food industry and research.

Food processing is a part of the manufacturing industry. To serve a marketable food product there are several intrinsic and extrinsic parameters to consider that determine the specific processing design of each product. Food production should ensure a safe, environmentally sustainable, and adequate supply of food. This book presents a comprehensive review of food processing applications. Chapters address such topics as the effects of rice bran, corn fiber, and sugarcane bagasse on the quality of baked foods, honey production processes, the potential usage of pectin in food packaging, and agro-industrial wastes for packaging processes, and much more.

Sensory Adjectives in the Discourse of Food presents a frame-based analysis of sensory descriptors. This book investigates the identification and usefulness of conceptual frames in three respects: First, an analysis of scientific language use shows that a semantic interpretation of the adjectives is dependent on the operationalizations performed in the field of sensory science. Second, a systematic frame semantic analysis of the descriptors sheds light on how meaning is constructed with regard to the lexemes’ wider context, from the utterance to the text type. Third, a comparison with German descriptors tests the applicability of a frame from one language to another (English – German). Framing presents itself as a means to capture the knowledge representation that underlies a particular discourse. With its detailed linguistic analyses and its interdisciplinary treatment of framing across discourse (specialized vs. public discourse), this book is interesting for researchers working within cognitive linguistics, terminology, and sensory science.

Bringing several disparate aspects of food science and analysis together in one place, Applications of Vibrational Spectroscopy to Food Science provides a comprehensive, state-of the-art text presenting the fundamentals of the methodology, as well as underlying current areas of research in food science analysis. All of the major spectroscopic techniques are also covered – showing how each one can be used beneficially and in a complementary approach for certain applications. Case studies illustrate the many applications in vibrational spectroscopy to the analysis of foodstuffs.