Perspectives In Flavor And Fragrance Research

It happened in Manchester, May 12-14, 2004. - For the fifth time since the early 1990's the Royal Society of Chemistry and the Society of the Chemical Industry jointly held their 'flavours & fragrances' conference, this time in the Manchester Conference Centre of the UMIST Manchester. The meeting saw over one hundred participants from one dozen countries, and was the largest of the series so far. In two and a half days divided into five sessions, twenty-five speakers from academia and industry alike presented their recent research results related to this exciting field, including Natural Products, Foods and Flavors, Perfumery and Olfaction, and last but not least Fragrance Chemistry. Research is more than ever central to the F&F industry with its constant demand for innovation and its frequently changing trends. Especially, in the classic and well-explored domains of musks and amber odorants fascinating new discoveries were made only very recently, which proves the endless possibilities in the search for new aroma chemicals. This was also reflected in the logo of the conference, which featured Ambrocenide? as a new powerful ambery odorant that emerged from classical cedrene chemistry - and it is as well reflected in four of the sixteen conference papers that are collected in this special issue of Chemistry & Biodiversity. With its focus on biorelevant chemicals, Chemistry & Biodiversity was predestined to publish the diverse highlight papers of the 'flavours & fragrances' conference. Fragrance and fragrance materials by definition elicit a biological response, serve as versatile signals, trigger the sense of smell and taste in various ways - and every odorant design is nothing more than 'chemistry probing nature'. But Fragrance Chemistry can also document and even preserve the biodiversity of scents, as was the topic of the lecture of Roman Kaiser, which had been published in advance as the first full paper of Chemistry & Biodiversity.

Smell and Taste - the chemical senses. They carry meaning to perceive and evaluate reality, but also evoke memories, feelings, and desires. They allow us to dream, to explore our emotions, or to seduce: 'A woman should wear her perfume wherever she wants to be kissed' advised Coco Chanel. The power of olfactory sensations seems almost magical to us - the chemistry behind these, however, is no mystery. The current topics of flavor and fragrance research are compiled in this book, which comprises 28 articles of the talks presented at the 2007 RSC/SCI 'Flavours and Fragrances' conference held at the Imperial College in London. The scope is intentionally broad and ranges from natural products to fragrance chemistry, to perfumery and olfaction, to foods and flavors. Chemistry is, however, the central and unifying discipline.

Modern flavours and fragrances are complex formulated products containing blends of aroma compounds with auxiliary materials, enabling desirable flavours or fragrances to be added to a huge range of products. The flavour and fragrance industry is a key part of the worldwide specialty chemicals industry, yet most technical recruits have minimal exposure to flavours and fragrances before recruitment. The analytical chemistry of flavour and fragrance materials presents specific challenges to the analytical chemist, as most of the chemicals involved are highly volatile, present in very small amounts and in complex mixtures. Analytical Methods for Flavor and Fragrance Materials covers the most important methods in the analysis of flavour and fragrance materials, including traditional and newly emerging methodologies. It discusses the capabilities of the various analytical methods for flavour and fragrance analysis and guides the newcomer to the most appropriate techniques for specific analytical problems.

This book is designed to give the reader up to date infonnation on some of the more exciting developments that have taken place at the leading edge of fragrance and flavour research. Chapter one gives the reader a rnpid excursion through the chronological landmarks of fragrance and flavour materials and sets the scene for the remaining nine chapters which cover topics that are at the forefront of modem research. Chapter two looks at the total synthesis of synthetically interesting perfumery naturnl materials. This chapter aims to highlight the creative and elegant chemistry that has been performed by some of the worlds greatest chemists in their quest to synthesise one of the five naturnl products reviewed in the chapter. The chapter fits in with the forward looking theme of the book as it will hopefully inspire other chemists that are interested in synthesising natural products to produce elegant new, or industrially applicable routes to these and other perfumery materials. Chapter three looks at the growing area of interest in asymmetric fragrance materials. The chapter focuses on the use of the metal-BINAP catalytic system for the preparation of fragrance and flavour ingredients. Environmental considerations are now an integrnl and vital part of planning any new industrial chemical process. Chapter four aims to give the reader an insight into the wide-ranging and often readily applicable chemistry that is currently available for the installation of environmentally friendly chemical processes.

This 6th edition is thoroughly revised and updated, and now additionally includes all commercially important flavor and fragrance materials that entered the market over the past 10 years. In one handy and up-to-date source, this classic reference surveys those natural and synthetic materials that are commercially available, produced, and used on a relatively large scale, covering their properties, manufacturing methods employed, and areas of application. For this new edition the chapter on essential oils has been completely revised with regard to production volumes, availability, and new product specifications, while new legal issues, such as REACH regulation aspects, are now included. Finally, the CAS registry numbers and physicochemical data of over 350 single substances and 100 essential oils have been updated and revised.

There are many advantages to stir bar sorptive extraction (SBSE) for isolating and concentrating flavor-active chemicals from foods, including its simplicity and wide application appeal. Written from a practical, problem-solving perspective, the second edition of Flavor, Fragrance, and Odor Analysis highlights this powerful technique and emphasizes

In a finished nutraceutical product, flavors play an integral role. Flavor Development for Functional Foods and Nutraceuticals is about the crucial role added flavors play in any nutraceutical product. It describes the various extraction techniques that are being adopted for manufacturing flavors from natural raw materials. Yield and retention of aromatic components during several extraction methods and flavor encapsulation techniques for thermal degradable food components are discussed. Advanced methods of flavor extraction techniques like supercritical C02 extraction are emphasized. The safety and quality aspects of flavor incorporation in food processing industries are reviewed with respect to international regulations. The importance of flavor in the nutraceuticals industry is also discussed. In addition, the book stresses the functional value and organoleptic acceptability towards product optimization/formulation. Features: Explains how flavors play an integral role in a finished nutraceutical product Describes the various extraction techniques that are being adopted for manufacturing flavors from natural raw materials Covers flavor encapsulation techniques for thermal degradable food components Provides an introduction to the history of how some natural flavor ingredients, botanicals, and extracts were used in ancient times in Ayurveda and herbal medicine This is an ideal reference book for the flavor chemists, food scientists, nutraceutical formulators, and students and academicians who are working in the area of nutraceutical, supplement, and functional food development and provides very useful information to help them select appropriate flavors for their products. Also available in the Nutraceuticals: Basic Research/Clinical Applications Series: Flavors for Nutraceuticals and Functional Foods, edited by M. Selvamuthukumaran and Yashwant Pathak (ISBN: 978-1-1380-6417-1) Antioxidant Nutraceuticals: Preventive and Healthcare Applications, edited by Chuanhai Cao, Sarvadaman Pathak, Kiran Patil (ISBN 978-1-4987-3703-6) Food By-product Based Functional Food Powders, edited by Özlem Tokuşoğlu (ISBN 978-1-4822-2437-5)

The volume deals with several aspects of the chemistry of both synthetic and natural organic compounds related to flavours and fragrances. It presents very recent results, some of them previously unpublished, and findings related to the chemistry of flavours and fragrances. It is organized in four sections: flavours and fragrances of foodstuffs, essential oils and other natural products from plants, applied aspects of flavour and fragrance production and detection, analytical aspects of flavour and fragrance isolation and identification. It should be of interest to academic and applied scientists in the field of organic chemistry, phytochemistry, analytical chemistry and food science.