2nd Edition

Flavor, Fragrance, and Odor Analysis

Edited By Ray Marsili Copyright 2012
    280 Pages 117 B/W Illustrations
    by CRC Press

    280 Pages 117 B/W Illustrations
    by CRC Press

    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 the range of applications available.

    Topics discussed include

    • Sequential SBSE, a novel extraction procedure
    • A simplified method for switching from one-dimensional to two-dimensional GC-MS
    • How analytical sensitivity and recovery of phenolic compounds can be improved using aqueous acylation prior to SBSE GC-MS
    • Analyzing and combating off-flavors caused by metabolites from microorganisms
    • A technique for measuring synergy effects between odorants
    • The identification of the characterizing aroma-active compounds of tropical fruits with high economic potential
    • The parameters utilized during the production of aqueous formulations rich in pyrazines
    • How spectral deconvolution can be used to speciate the subtle differences in essential oil content and track key ingredients through the manufacturing process

    The final chapter summarizes chemical identities of characterizing aroma chemicals in fruits, vegetables, nuts, herbs and spices, and savory and dairy flavors. It also provides a brief compendium of the characterization of off-flavors and taints that are reported in foods.

    With contributions from a distinguished panel of international experts, this volume provides chemists and researchers with the latest techniques for analyzing and enhancing food flavor and fragrance.

    Sequential stir bar sorptive extraction; Nobuo Ochiai
    Sequential stir bar sorptive extraction
    Sequential SBSE with PDMS stir bar and EG Silicon stir bar

    Selectable one-dimensional or two-dimensional gas chromatography–mass spectrometry;
    Nobuo Ochiai
    Heart-cutting two-dimensional gas chromatography
    Selectable one-dimensional or two-dimensional gas chromatography–mass spectrometry with simultaneous detection
    Selectable one-dimensional or two-dimensional gas chromatography–olfactometry/mass spectrometry with preparative fraction collection

    Simple derivatization prior to stir bar sorptive extraction to improve extraction efficiency and chromatography of hydrophilic analytes: Acylation of phenolic compounds;
    Ray Marsili
    Determination of alkylphenols and bisphenol A in river water by stir bar sorptive extraction
    Identification of smoke-taint chemicals in wine by SBSE GC–MS techniques
    Determination of cresols in casein by SBSE GC–MS: Maximizing SBSE recovery with acylation

    Analysis of musty microbial metabolites by stir bar sorptive extraction;
    Ray Marsili
    Analytical approaches to monitoring nanogram-per-liter levels of musty metabolites
    Stir bar sorptive extraction of geosmin in drinking water
    Stir bar sorptive extraction of geosmin in salted snacks
    Novel approach to collecting musty off-flavor compounds on tap
    Haloanisole contamination of casein
    Headspace sorptive extraction gas chromatography–time-of-flight mass spectrometry multivariate analysis for chemotaxonomic profiling of mold metabolites

    The olfactometric analysis of milk volatiles with a novel gas chromatography-based method: A case study in synergistic perception of aroma compounds;
    Yvette Naudé and Egmont R. Rohwer
    Sorptive extraction
    High-capacity headspace sorptive extraction of aroma compounds from milk followed by TDS-CIS-GC–FID
    Novel heart-cutting fraction collection GC-based methods
    Off-line olfactory evaluation of single compounds and their combinations
    Slow release of the aroma of single compounds captured by GCFC on individual secondary MCTs

    Characterizing aroma-active volatile compounds of tropical fruits;
    Patricio R. Lozano
    Tropical fruits and their health benefits
    Flavor characterization of tropical fruits: Free volatiles and glycosidically bound volatiles—A dynamic scenario
    Isolation of aroma chemicals
    Contribution of aroma compounds to flavor
    Main aroma compounds of some exotic tropical fruits
    Passion fruit

    On the synthesis and characteristics of aqueous formulations rich in pyrazines;
    William M. Coleman, III
    Materials and methods
    Sample preparation
    Results and discussion
    Model reactions

    Using automated sequential two-dimensional gas chromatography/mass spectrometry to produce a library of essential oil compounds and track their presence in gin, based on spectral deconvolution software;
    Albert Robbat, Jr. and Amanda Kowalsick
    Results and discussion

    Character-impact flavor and off-flavor compounds in foods;
    Robert J. McGorrin
    Character-impact flavors in foods
    Characterizing aromas in off-flavors



    Ray Marsili has published over 30 papers on food and flavor chemistry in refereed chemistry journals, as well as over 100 technical papers for trade publications and numerous chapters for flavor chemistry and dairy chemistry books. He served as a contributing editor of Food Product Design magazine, editor of R&D magazine's Sample Preparation Newsletter, and lecturer in organic chemistry at Rock Valley College, Rockford, Illinois. He has edited two previous books on flavor and odor analysis: Techniques for Analyzing Food Aroma (1997) and Flavor, Fragrance and Odor Analysis (2002). He has over 30-years' experience as an R&D analytical laboratory manager/flavor chemist for major national and international food and ingredient companies. Today, he is an independent analytical flavor consultant, with a laboratory at Rockford College, Rockford.

    "…state-of-the-art....Present[s] the most recent methods in flavor, off-flavor, and malodor analysis."
    —Food Trade Review

    "This book is very interesting and covers many facets of flavor analysis. … will surely contribute to the advancement of flavor and fragrance research."
    —IASI Polytechnic Magazine

    " … an interesting book that makes a significant contribution to advancing this fascinating topic."