06155nam 22008893u 450 991083004270332120230725050856.01-283-17823-097866131782371-4443-4313-01-4443-4314-9(CKB)2550000000041242(EBL)819254(OCoLC)739118513(SSID)ssj0000540249(PQKBManifestationID)11314747(PQKBTitleCode)TC0000540249(PQKBWorkID)10586173(PQKB)10164038(MiAaPQ)EBC819254(iGPub)WILEYB0025391(EXLCZ)99255000000004124220131014d2011|||| u|| |engur|n|---|||||txtccrPractical Analysis of Flavor and Fragrance Materials[electronic resource]1st ed.Hoboken Wiley20111 online resource (250 p.)Description based upon print version of record.1-4051-3916-1 Practical Analysis of Flavor and Fragrance Materials; Contents; Preface; About the Editors; List of Contributors; 1 Overview of Flavor and Fragrance Materials; 1.1 Flavor Aroma Chemicals; 1.1.1 Nature Identical; 1.1.1.1 Alcohols; 1.1.1.2 Acids; 1.1.1.3 Esters; 1.1.1.4 Lactones; 1.1.1.5 Aldehydes; 1.1.1.6 Ketones; 1.1.2 Heterocycles; 1.1.2.1 Oxygen-containing; 1.1.2.2 Nitrogen-containing; 1.1.2.3 Sulfur-containing; 1.1.3 Sulfur Compounds; 1.1.3.1 Mercaptans; 1.1.3.2 Sulfides; 1.2 Flavor Synthetics; 1.3 Natural Aroma Chemicals; 1.3.1 Isolates; 1.3.2 Biotechnology; 1.3.3 'Soft Chemistry'1.4 Fragrance Aroma Chemicals1.4.1 Musks; 1.4.2 Amber; 1.4.3 Florals; 1.4.4 'Woodies'; 1.4.5 Acetals and Nitriles; 1.5 Materials of Natural Origin; 1.5.1 Essential Oils; 1.5.1.1 Cold-pressing - Citrus Oils; 1.5.1.2 Steam-distilled Oils; 1.5.1.3 A Note on 'Adulteration'; 1.5.2 Absolutes and Other Extracts; Acknowledgments; References; 2 Sample Preparation; 2.1 Introduction; 2.2 PDMS; 2.3 Static Headspace Extraction; 2.3.1 Advantages and Disadvantages; 2.4 Dynamic Headspace Extraction; 2.4.1 Advantages; 2.4.2 Disadvantages; 2.5 Solid Phase Microextraction (SPME); 2.5.1 Research; 2.5.2 Practical2.5.3 Advantages2.5.4 Disadvantages; 2.6 Stir Bar Sorptive Extraction; 2.6.1 Research; 2.6.2 Practical; 2.6.3 Advantages; 2.6.4 Disadvantages; 2.7 PDMS Foam and Microvial; 2.7.1 PDMS Foam; 2.7.2 Microvial; 2.8 Solvent Extraction; 2.8.1 MIXXOR; 2.8.2 Soxhlet Extraction; 2.8.3 Solvent Assisted Flavor Evaporation (SAFE); 2.9 Summary; References; 3 Traditional Flavor and Fragrance Analysis of Raw Materials and Finished Products; 3.1 Overview; 3.2 Physical Attribute Evaluation; 3.2.1 Color - Optical Methods; 3.2.2 Turbidity; 3.2.3 Water Activity; 3.2.4 Moisture Content; 3.2.4.1 Karl Fischer Method3.2.4.2 Secondary Moisture Determination Methods3.2.5 Optical Rotation; 3.2.6 Specific Gravity; 3.2.7 Refractive Index; 3.2.8 Sugars/Soluble Solids; 3.2.9 Viscosity; 3.3 Instrumental Analysis; 3.3.1 Separation Techniques; 3.3.1.1 Gas Chromatography (GC); 3.3.1.2 GC Retention Data; 3.3.1.3 Standardized Retention Index Systems; 3.3.1.4 GC Injection; 3.3.1.5 GC Columns (Stationary Phases); 3.3.1.6 GC Detectors; 3.3.2 Identification Techniques; 3.3.2.1 Retention Index Approach; 3.3.2.2 GC-MS; 3.3.2.3 MS/MS; References; 4 Gas Chromatography/Olfactometry (GC/O); 4.1 Introduction4.2 Odor Assessors' Selection and Training4.3 Sensory Vocabulary; 4.4 GC/Olfactometers (Sniffers); 4.5 Practical Considerations; 4.6 Types of GC/Olfactometry; 4.6.1 Dilution Analysis; 4.6.2 Time Intensity; 4.6.3 Detection Frequency; 4.6.4 Posterior Intensity Method; 4.7 Sample Introduction; 4.8 Identification of Aroma-active Peaks; 4.8.1 Standardized Retention Index Values; 4.8.2 Aroma Description Matching; 4.8.3 MS Identifications; 4.8.4 Use of Authentic Standards; 4.9 Conclusion; References; 5 Multivariate Techniques; 5.1 Introduction; 5.2 Hierarchical Cluster Analysis (HCA)5.3 Principal Component Analysis (PCA)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 amounFlavor - AnalysisFlavor -- AnalysisFlavor - BiotechnologyFlavor -- BiotechnologyFlavoring essences - AnalysisFlavoring essences -- AnalysisFlavorAnalysisFlavoring essencesAnalysisFlavorBiotechnologyChemical & Materials EngineeringHILCCEngineering & Applied SciencesHILCCChemical EngineeringHILCCFlavor - Analysis.Flavor -- Analysis.Flavor - Biotechnology.Flavor -- Biotechnology.Flavoring essences - Analysis.Flavoring essences -- Analysis.FlavorAnalysisFlavoring essencesAnalysisFlavorBiotechnologyChemical & Materials EngineeringEngineering & Applied SciencesChemical Engineering664.07664.5664/.07Goodner Kevin1680443Rouseff Russell1680444AU-PeELAU-PeELAU-PeELBOOK9910830042703321Practical Analysis of Flavor and Fragrance Materials4049151UNINA02319nam0 22004333i 450 RAV021174520251003044327.0881503447119930304d1992 ||||0itac50 baitaitz01i xxxe z01nCambiamento tecnologico e occupazionerecenti modelli di disoccupazione tecnologicaPaolo PiniBolognaIl mulino[1992]348 p.22 cm.Studi e ricerche309001CFI00014232001 Studi e ricerche309DisoccupazioneFIRCFIC002714EProgresso tecnico e occupazioneFIRCFIC018958I331.12MERCATO DEL LAVORO21331.125MERCATO DEL LAVORO. IMPIEGO ATTIVO19331.1312331.137DISFUNZIONI DEL MERCATO DEL LAVORO. DISOCCUPAZIONE21331.137042DISOCCUPAZIONE TECNOLOGICA19331.137042DISOCCUPAZIONE TECNOLOGICA20331.137042Economia del lavoro. Disoccupazione tecnologica21331.13704223Pini, Paolo <1956- >CFIV09255107089096ITIT-00000019930304IT-BN0095 IT-NA0457 NAP BISALA 3 Libri da 1597 a 3785NAP 01POZZO LIB.Vi sono collocati fondi di economia, periodici di ingegneria e scienze, periodici di economia e statistica e altri fondi comprendenti documenti di economia pervenuti in dono. NAP 01BCA Comprende monografie e periodici di diritto, testi di ingegneria, di scienze e tecnologia di nuova acquisizione. RAV0211745Biblioteca Centralizzata di Ateneo1 v. in 2 copie 01POZZO LIB.ECON MON 3391 0101 0000118095E VMA 1 v.B 20210318202103181 v. in 2 copie 01POZZO LIB.ECON MON 3391 0101 0700755555E VMA (bis 1 v. (2. copia. Precedente collocazione 7 EC 555)B 20220805202208051 v. 01BCA SC. SOCIAL 324 01 0000004645 VMA A4 1 v.B 2021090120210901 01 BICambiamento tecnologico e occupazione1768230UNISANNIO