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Author: Luigi Mondello
Publisher: John Wiley & Sons
ISBN: 9781119069645
Category : Science
Languages : en
Pages : 0
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Book Description
Advanced Component Identification in Complex Mixtures Essential oils are mixtures consisting of monoterpene andsesquiterpene hydrocarbons, their oxygenated derivatives, andaliphatic oxygenated compounds. The difficulties that arise in theGC-MS peak identification of these complex samples is due to thefact that many terpenes have identical mass spectra. This is aconsequence of similarities both in the initial molecule, or in thefragmentation patterns and rearrangements after ionization. Hence,MS identification of these compounds should always be accompaniedby retention time information that may support the MS librarysearch results. This innovative MS library for natural and synthetic products(essential oils, perfumes, etc.) makes the identification ofunknown compounds in complex mixtures easier, faster and morereliable. The use of chromatographic information, such as LinearRetention Index (LRI), can be used to filter MS results, enablingthe more reliable peak assignment of components in complexmixtures. Mass spectra, relative to standard and well-known simple matrixcomponents, were obtained and recorded through GC-MSseparation/identification. Furthermore, traditional informationrelative to each component (CAS number, common name, CAS name,molecular weight, compound formula, chemical class) plus linearretention index values are entered. Flavors and Fragrances of Natural and Synthetic Compounds,3rd edition contains >3000 mass spectra, LRI retentiondata, calculated Kovats RI, and searchable chemical structures ofcompounds of interest for the flavors and fragrances industry.Prepared by the Prof. Luigi Mondello under rigorous measurementconditions, the mass spectral library contains compounds central toflavor and fragrance research. What's on the disc: 1. FFNSC 3 in MS Search (Agilent, Bruker, Leco, JEOL, , Agilent .L(Chemstation, MassHunter), PerkinElmer Turbomass, Waters MassLynx,ACD ND9, and Cromatoplus 2. 30-Day trial version of Cromatoplus software
Author: Luigi Mondello
Publisher: John Wiley & Sons
ISBN: 9781119069645
Category : Science
Languages : en
Pages : 0
Get Book Here
Book Description
Advanced Component Identification in Complex Mixtures Essential oils are mixtures consisting of monoterpene andsesquiterpene hydrocarbons, their oxygenated derivatives, andaliphatic oxygenated compounds. The difficulties that arise in theGC-MS peak identification of these complex samples is due to thefact that many terpenes have identical mass spectra. This is aconsequence of similarities both in the initial molecule, or in thefragmentation patterns and rearrangements after ionization. Hence,MS identification of these compounds should always be accompaniedby retention time information that may support the MS librarysearch results. This innovative MS library for natural and synthetic products(essential oils, perfumes, etc.) makes the identification ofunknown compounds in complex mixtures easier, faster and morereliable. The use of chromatographic information, such as LinearRetention Index (LRI), can be used to filter MS results, enablingthe more reliable peak assignment of components in complexmixtures. Mass spectra, relative to standard and well-known simple matrixcomponents, were obtained and recorded through GC-MSseparation/identification. Furthermore, traditional informationrelative to each component (CAS number, common name, CAS name,molecular weight, compound formula, chemical class) plus linearretention index values are entered. Flavors and Fragrances of Natural and Synthetic Compounds,3rd edition contains >3000 mass spectra, LRI retentiondata, calculated Kovats RI, and searchable chemical structures ofcompounds of interest for the flavors and fragrances industry.Prepared by the Prof. Luigi Mondello under rigorous measurementconditions, the mass spectral library contains compounds central toflavor and fragrance research. What's on the disc: 1. FFNSC 3 in MS Search (Agilent, Bruker, Leco, JEOL, , Agilent .L(Chemstation, MassHunter), PerkinElmer Turbomass, Waters MassLynx,ACD ND9, and Cromatoplus 2. 30-Day trial version of Cromatoplus software
Author: Virginia Lanzotti
Publisher: Springer Science & Business Media
ISBN: 9780792362111
Category : Cooking
Languages : en
Pages : 280
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Book Description
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.
Author: Horst Surburg
Publisher: John Wiley & Sons
ISBN: 3527693181
Category : Science
Languages : en
Pages : 392
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Book Description
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.
Author: David Rowe
Publisher: John Wiley & Sons
ISBN: 1405148071
Category : Science
Languages : en
Pages : 352
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Book Description
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 hugerange of products. From the identification and synthesis ofmaterials such as cinnamaldehyde and vanillin in the 19th Centuryto the current application of advanced analytical techniques foridentification of trace aroma compounds present in naturalmaterials, the flavour and fragrance industry has developed as akey part of the worldwide specialty chemicals industry. With contributions mainly coming from industry based experts,Chemistry & Technology of Flavours and Fragrancesprovides a detailed overview of the synthesis, chemistry andapplication technology of the major classes aroma compounds. Withseparate chapters covering important technical aspects such as thestability of aroma compounds, structure – odour relationshipsand identification of aroma compounds, this book will be essentialreading for both experienced and graduate level entrants to theflavour & fragrance industry. It will also serve as animportant introduction to the subject for chemists andtechnologists in those industries that use flavours and fragrances,eg food, cosmetics & toiletries, and household products. David Rowe is Technical Manager at De Monchy Aromatics Ltd.,Poole UK
Author: A. D. Kinghorn
Publisher: Springer
ISBN: 3319052756
Category : Science
Languages : en
Pages : 602
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Book Description
The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, L. Zechmeister, have appeared under the Springer Imprint ever since the series' inauguration in 1938. It is therefore not really surprising to find out that the list of contributing authors, who were awarded a Nobel Prize, is quite long: Kurt Alder, Derek H.R. Barton, George Wells Beadle, Dorothy Crowfoot-Hodgkin, Otto Diels, Hans von Euler-Chelpin, Paul Karrer, Luis Federico Leloir, Linus Pauling, Vladimir Prelog, with Walter Norman Haworth and Adolf F.J. Butenandt serving as members of the editorial board. The volumes contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in his field and provides a comprehensive and up-to-date review of the topic in question. Addressed to biologists, technologists and chemists alike, the series can be used by the expert as a source of information and literature citations and by the non-expert as a means of orientation in a rapidly developing discipline.
Author: Ralf Günter Berger
Publisher: Springer Science & Business Media
ISBN: 3540493395
Category : Science
Languages : en
Pages : 649
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Book Description
This book is an introduction to the world of aroma chemicals, essential oils, fragrances and flavour compositions for the food, cosmetics and pharmaceutical industry. Present technology, the future use of resources and biotechnological approaches for the production of the respective chemical compounds are described. The book has an integrated and interdisciplinary approach on future industrial production and the issues related to this topic.
Author: Carl Frey
Publisher:
ISBN:
Category : Cooking
Languages : en
Pages : 240
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Book Description
With the development of synthetic organic chemistry techniques in the early 19th century the world of synthetic F&F materials began and expanded, but it has not totally replaced natural F&F. A growing segment of the public prefers natural foods to foods containing artificial additives, and will pay a premium for natural foods. While modern synthetic methods permit the economical production of artificial F&F on a large scale, the natural F&F industry remains important. Why is this so? How do the chemical, biological, and agricultural sciences support the natural F&F industry? What is the state of current natural F&F research? These are questions this volume attempts to address. Even considering only the value of F&F derived from essential oils, natural F&F constitute approximately a $2 billion annual business. The impact of F&F is best appreciated when you consider that a flavor or fragrance typically contributes only a very small part, both in cost and volume, to a finished product. Many analytical tools available do not have a detector that is as sensitive to taste or odor as a human (or many animals for that matter). The challenge for researchers is to sift F&F information from all the data obtained from the various analytical techniques. The intent of this book is to give the reader and appreciation for the many facets of the chemistry, analysis and production of natural flavors and fragrances. It is a field where each one of us who can smell and taste are active participants. New foods, plants, processes, packages and aromas are developed each day. Keeping researchers abreast of the many new facets of the natural F&F field have led to development of this chapter and the ACS symposium that served as the basis of this book.
Author: Kurt Bauer
Publisher: John Wiley & Sons
ISBN: 3527612378
Category : Science
Languages : en
Pages : 290
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Book Description
Get a good start in flavor and fragrance chemistry! This book presents a survey of those natural and synthetic fragrance and flavor materials which are isolated and produced commercially on a relatively large scale because of their organoleptic characteristics. It provides information on their properties, methods employed in their manufacture, and their areas of application. '...The excellent and concise introduction to this unique industry is followed by extensive information on nearly 500 of the most used fragrance and flavor compounds. Names, molecular formula, physical data, odor and flavor descriptions, uses, and a number of processes for the larger volume chemicals are all included. Successive chapters deal with essential oils, animal secretions, quality control, toxicology and literature. The formula, name and CAS registry number index is an invaluable and timely addition.' Parfumer and Flavorist '...This book provides a lot of useful information in one place, and it is an especially good resource for somebody just entering the flavor and fragrance industry.' Journal of Medicinal Chemistry 'You'll find much information in this book not found in other works.' Foster's Herb Business Bulletin 'Particularly useful for natural product chemists, those in the product development and the curious.' Herbalgram
Author: O. David Sparkman
Publisher: Academic Press
ISBN: 0080920152
Category : Science
Languages : en
Pages : 633
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Book Description
The second edition of Gas Chromatography and Mass Spectrometry: A Practical Guide follows the highly successful first edition by F.G. Kitson, B.S. Larsen, and C.N. McEwen (1996), which was designed as an indispensible resource for GC/MS practitioners regardless of whether they are a novice or well experienced. The Fundamentals section has been extensively reworked from the original edition to give more depth of an understanding of the techniques and science involved with GC/MS. Even with this expansion, the original brevity and simple didactic style has been retained. Information on chromatographic peak deconvolution has been added along with a more in-depth understanding of the use of mass spectral databases in the identification of unknowns. Since the last edition, a number of advances in GC inlet systems and sample introduction techniques have occurred, and they are included in the new edition. Other updates include a discussion on fast GC and options for combining GC detectors with mass spectrometry. The section regarding GC Conditions, Derivatization, and Mass Spectral Interpretation of Specific Compound Types has the same number of compound types as the original edition, but the information in each section has been expanded to not only explain some of the spectra but to also explain why certain fragmentations take place. The number of Appendices has been increased from 12 to 17. The Appendix on Atomic Masses and Isotope Abundances has been expanded to provide tools to aid in determination of elemental composition from isotope peak intensity ratios. An appendix with examples on "Steps to follow in the determination of elemental compositions based on isotope peak intensities" has been added. Appendices on whether to use GC/MS or LC/MS, third-party software for use in data analysis, list of information required in reporting GC/MS data, X+1 and X+2 peak relative intensities based on the number of atoms of carbon in an ion, and list of available EI mass spectral databases have been added. Others such as the ones on derivatization, isotope peak patterns for ions with Cl and/or Br, terms used in GC and in mass spectrometry, and tips on setting up, maintaining and troubleshooting a GC/MS system have all been expanded and updated. Covers the practical instruction necessary for successful operation of GC/MS equipment Reviews the latest advances in instrumentation, ionization methods, and quantitation Includes troubleshooting techniques and a variety of additional information useful for the GC/MS practitioner A true benchtop reference A guide to a basic understanding of the components of a Gas Chromatograph-Mass Spectrometer (GC-MS) Quick References to data interpretation Ready source for information on new analyses
Author: Sreeraj Gopi
Publisher: John Wiley & Sons
ISBN: 3527347089
Category : Science
Languages : en
Pages : 261
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Book Description
Natural Flavours, Fragrances, and Perfumes Explore this one-stop resource on every relevant aspect of natural flavors and fragrances The use of sensory science has the potential to give scientists, researchers, and industry specialists a way to overcome the challenges in nutraceuticals and, more generally, in the functional food industry. Flavor and fragrance have the potential to significantly influence consumer satisfaction with products and its success in the marketplace. In order to effectively produce and optimize a customer’s experience in both food and household products, it is essential to have a strong understanding of the fundamentals of chemistry and physicochemical processes. Natural Flavours, Fragrances and Perfumes offers a comprehensive look at the sensory sciences necessary to produce the most appealing olfactory responses derived from natural resources for consumers – from the analysis and biomolecular aspects of natural products to the processing and isolation of desired products, from the perceptual properties to regulatory aspects. Specifically, the book presents novel approaches to the processes involved in producing plant-derived functional products by examining how characteristic flavors arise due to complex interactions between hundreds of molecules, as well as studying the physiological variables that affect flavor perception. Natural Flavours, Fragrances, and Perfumes readers will also find: Insights into the identification and characterization of plant volatiles, as well as chromatography techniques for sensory fingerprints Chapters devoted to biosynthesis and metabolic pathways for the development of household products composed of organic materials Additional chapters on the advances in flavor science, on technological advances in the effective delivery of flavor, and challenges in the retention and release of flavor Natural Flavours, Fragrances, and Perfumes is a useful reference for chemists of all kinds, food scientists, biotechnologists, and perfumers, as well as those studying in these fields.
