Liquid Chromatography of Natural Pigments and Synthetic Dyes

Author: Tibor Cserháti
Publisher: Elsevier
ISBN: 9780080465760
Format: PDF, ePub
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This latest volume in the series entitled Liquid Chromatography of Natural Pigments and Synthetic Dyes presents an overview of the latest developments in the field while critically evaluating this method of analysis and providing comparisons of the various liquid chromatographic separation techniques that are currently available. Natural pigments and synthetic dyes are extensively used in various fields of everyday life including food production, textile industry, paper production, agricultural practice and research and water science and technology. Besides their capacity for increasing the marketability of products, natural pigments have shown advantageous biological activity as antioxidants and anticancer agents. On the negative side, synthetic pigments have a significant impact on the environment and can cause adverse toxicological side effects. Both pigment classes exhibit considerable structural diversity. As the stability of the pigments against hydrolysis, oxidation and other environmental and technological conditions is markedly different, the exact determination of the pigment composition may help for the prediction of the shelf-life of products and the assessment of the influence of technological steps on the pigment fractions resulting in more consumer friend processing methods. Furthermore, the qualitative determination and identification of the pigments may contribute to the establishment of the provenance of the product. The unique separation capacity of liquid chromatographic (LC) techniques makes it a method of preference for the analysis of pigments in any complicated accompanying matrices. * an overview of the latest developments in the field * a critical evaluation of results from this form of analysis * a comparison of the various LC (liquid chromatographic) separation techniques * future trends in the LC analysis of pigments

Bio pigmentation and Biotechnological Implementations

Author: Om V. Singh
Publisher: John Wiley & Sons
ISBN: 1119166179
Format: PDF, ePub, Mobi
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Recent technological advances have provided unique opportunities for the exploration of alternatives to the industrial use of chemically produced synthetic colors. The most promising developments in this area have been in bio-pigmentation derived from microorganisms. This groundbreaking book reviews the current state of the science of bio-pigmentation, providing important insights into the molecular mechanisms of microbial biosynthesis of industrial pigments. Featuring contributions by leading researchers from both industry and academe, it explores the latest advances in the use of bio-pigments as safe, sustainable alternatives to chemically synthesized pigments, and provides extensive coverage the most promising sources of bio-pigments within the food, feed, and pharmaceutical industries. • Proposes microbial uniqueness of coloration in variety of food, feed and pharmaceuticals • Covers the basic science behind bio-pigmentation as well as the latest advances in the field • Describes detection strategies for screening and identifying color producing microorganisms under varying environmental conditions • Provides an exhaustive review of the literature on color producing extremophiles and offers fascinating insights into color production as a stress response in extremophiles • Explores microbial molecular mechanisms of color production, with special coverage of color production as secondary metabolites under environmental stress Bio-pigmentation and Biotechnological Implementations is required reading for professionals and post-doctoral students of microbiology, applied microbiology, food microbiology, food science, and food biochemistry. It is a valuable working resource for scientists working in color-dependent food, feed, and pharmaceuticals.

Selection of the HPLC Method in Chemical Analysis

Author: Serban C. Moldoveanu
Publisher: Elsevier
ISBN: 0128037113
Format: PDF
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Selection of the HPLC Method in Chemical Analysis serves as a practical guide to users of high-performance liquid chromatography and provides criteria for method selection, development, and validation. High-performance liquid chromatography (HPLC) is the most common analytical technique currently practiced in chemistry. However, the process of finding the appropriate information for a particular analytical project requires significant effort and pre-existent knowledge in the field. Further, sorting through the wealth of published data and literature takes both time and effort away from the critical aspects of HPLC method selection. For the first time, a systematic approach for sorting through the available information and reviewing critically the up-to-date progress in HPLC for selecting a specific analysis is available in a single book. Selection of the HPLC Method in Chemical Analysis is an inclusive go-to reference for HPLC method selection, development, and validation. Addresses the various aspects of practice and instrumentation needed to obtain reliable HPLC analysis results Leads researchers to the best choice of an HPLC method from the overabundance of information existent in the field Provides criteria for HPLC method selection, development, and validation Authored by world-renowned HPLC experts who have more than 60 years of combined experience in the field

Food Biosynthesis

Author: Alexandru Mihai Grumezescu
Publisher: Academic Press
ISBN: 0128112085
Format: PDF
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Food Biosynthesis, Volume One in the Handbook of Food Bioengineering series, describes the main aspects related to the biological production of synthetic ingredients and natural foods, highlighting the impact of bacteria and plants in the biosynthesis of key food components. Biosynthesis methods could help solve issues like food shortages, providing consumers with preferred ‘natural’ food options. This book represents how biologically synthesized ingredients, such as vanilla flavoring, soy, milk and egg substitutes can be utilized as a desired option future foods. It is ideal for scientists and researchers who want to improve their knowledge on the field of food biosynthesis. Presents practical approaches of biosynthesis and the impact of biological origin on the field of food engineering Offers alternative applications to produce natural foods Includes processes and techniques to produce health promoting foods Discusses the positive effects of biosynthesis on microbial production to enhance food safety Offers a variety of perspectives on biosynthesis and its benefits for food ingredient production

Science Technology and Cultural Heritage

Author: M.A. Rogerio-Candelera
Publisher: CRC Press
ISBN: 1315712423
Format: PDF, Mobi
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The Second International Congress on Science and Technology for the Conservation of Cultural Heritage was held in Seville, Spain, June 24-27, 2014, under the umbrella of the TechnoHeritage network. TechnoHeritage is an initiative funded by the Spanish Ministry of Economy and Competitivity dedicated to the creation of a network which integrates CSIC and University groups, private companies and end users such as foundations, museums or institutions. The network’s purpose is to foster the creation of transdisciplinary (and not only multidisciplinary) initiatives focused on the study of all assets, movable or immovable, that make up Cultural Heritage. The congress was dedicated to six topics, namely (1) Environmental assessment and monitoring (pollution, climate change, natural events, etc.) of Cultural Heritage; (2) New products and materials for conservation and maintenance of Cultural Heritage; (3) Agents and mechanisms of deterioration of Cultural Heritage (physical, chemical, biological), including deterioration of modern materials used in Contemporary Art and information storage; (4) Development of new instruments, non invasive technologies and innovative solutions for analysis, protection and conservation of Cultural Heritage; (5) Security technologies, remote sensing and G.I.S. for the protection and management of Cultural Heritage; and (6) Significance, social value and policies for the conservation of Cultural Heritage. This volume publishes a total of seventy-two contributions which reflect some of the most recent responses to the challenge of cultural assets conservation and the application of different scientific approaches to the common goal of the conservation of Cultural Heritage.

Chromatography

Author: E. Heftmann
Publisher: Elsevier
ISBN: 9780080472256
Format: PDF
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Chromatography has emerged as the most important and versatile analytical method. The book is not only an updated version of Heftmann's classical text, but it covers areas of future importance, such as microfluidics and computer resources. Under his experienced guidance, authorities in each field have contributed their practical experience to an integrated treatment of modern micro analysis. Part B of this two volume set brings the traditional field of application up to date. These include amino acids and proteins, nucleic acids and their constituents, lipid, and carbohydrates. Special chapters are devoted to the most important areas of application: drug and environmental analysis. Forensic and phytochemical applications are covered for the first time. Together with an overview of computer resources, the subject index allows novices as well as experts to obtain rapid and authoritative guidance to analytical problems, such as choice of methods and optimization of techniques and instrumentation. 1. Each chapter written by an authority 2. Thorough treatment of the theoretical basis of separation methods 3. Practical guide for performing analyses

Chromatography of Aroma Compounds and Fragrances

Author: Tibor Cserháti
Publisher: Springer Science & Business Media
ISBN: 9783642016561
Format: PDF, ePub
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The quantity and composition of aroma and avour compounds in foods and food products exert a marked in uence on the consumer acceptance and, consequently, on the commercial value of the products. It has been established many times that one of the main properties employed for the evaluation of the product quality is the avour, that is, an adequate avour composition considerably enhances the m- ketability. Traditional analytical methods are generally unsuitable for the accurate determination of the quantity of this class of compounds. Moreover, they do not contain any useful information on the concentration of the individual substances and they are not suitable for their identi cation. As the stability of the aroma compounds and fragrances against hydrolysis, oxidation and other environmental and tech- logical conditions shows marked differences, the exact determination of the avour composition of a food or food product may help for the prediction of the she- life of products and the assessment of the in uence of technological steps on the aroma compounds resulting in more consumer-friendly processing methods. Furthermore, the qualitative determination and identi cation of these substances may contribute to the establishment of the provenance of the product facilitating the authenticity test. Because of the considerable commercial importance of avour composition, much effort has been devoted to the development of methods suitable for the separation and quantitative determination of avour compounds and f- grancesinfoodsandinotherindustrialproducts.

The Chemical History of Color

Author: Mary Virginia Orna
Publisher: Springer Science & Business Media
ISBN: 3642326420
Format: PDF, ePub, Mobi
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In this brief, Mary Virginia Orna details the history of color from the chemical point of view. Beginning with the first recorded uses of color and ending in the development of our modern chemical industry, this rich, yet concise exposition shows us how color pervades every aspect of our lives. Our consciousness, our perceptions, our useful appliances and tools, our playthings, our entertainment, our health, and our diagnostic apparatus – all involve color and are based in no small part on chemistry.