The Chemistry and Biology of Volatiles

The Chemistry and Biology of Volatiles

Language: English

Pages: 428

ISBN: 0470777788

Format: PDF / Kindle (mobi) / ePub

"Coming to a conclusion, this wonderful, informative and very interesting book presents an excellent overview of small volatile organic compounds and their role in our life and environment. Really fascinating is the entirety of scientific disciplines which were addressed by this book." –Flavour and Fragrance Journal, 2011

"… this book deserves to be a well-used reference in the library of any laboratory specialising in VOC". –Chemistry World, 2011

Volatile compounds are molecules with a relatively low molecular weight allowing for an efficient evaporation into the air. They are found in many areas of our everyday-life: they are responsible for the communication between species such as plants, insects or mammals; they serve as flavours or fragrances in many food products or perfumed consumer articles; and they play an important role in atmospheric chemistry.

This book takes an interdisciplinary approach to volatile molecules. Review-style introductions to the main topics in volatile chemistry and biology are provided by international experts, building into a broad overview of this fascinating field.

Topics covered include:

  • The structural variety of volatile compounds
  • Biogeneration of volatiles
  • Synthesis of natural and non-natural volatiles
  • Analysis of volatiles
  • Volatile compounds as semiochemicals in plant-plant or plant-insect interactions
  • Volatiles in pest control
  • Pheromones and the influence of volatiles on mammals
  • Olfaction and human perception
  • Volatiles as fragrances
  • The generation of flavours and food aroma compounds
  • Stabilisation and controlled release of volatiles
  • The impact of volatiles on the environment and the atmosphere

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photosynthetic pigments, CO2 assimilation rates and different kinds of chlorophyll fluorescence ratios, J. Plant Physiol., 148, 555–566 (1996); (b) C. Schindler, P. Reith, H. K. Lichtenthaler, Differential levels of carotenoids and decrease of zeaxanthin cycle performance during leaf development in a green and an aurea variety of tobacco, J. Plant Physiol., 143, 500–507 (1994). (a) P. Harley, V. Fridd-Stroud, J. Greenberg, A. Guenther, P. Vasconcellos, Emission of 2-methyl3-buten-2-ol by pines: a

2,3DE6TBDMS-b-CD in PS086 (25 m  0.25 mm i.d.  0.25 mm d.f.; MEGA, Legnano, Italy). Temperature programme: from 50 to 220  C (2 min) at 2  C minÀ1. Injection mode: split; split ratio: 1 : 50. Temperatures: injector: 220  C, transfer line: 230  C; ion source: 200  C; carrier gas: He, flow rate: 1.0 ml minÀ1. MS ionization mode: electron impact (EI) at 70 eV, scan rate: 666 amu sÀ1, mass range: 35–350 m/z Analysis of the Plant Volatile Fraction 75 However, ES-GC alone is not always

high-speed qMS, and thus it is often necessary to reduce the mass range so as to obtain a sufficient number of spectra for correct definition of the peak shape. This technique was immediately successful for the analysis of ultra-high complex mixtures, in particular in the mineral oil industry, where it has proved capable of separating and detecting more than 15 000 components in a single run. Comparable success has been achieved in the flavour and fragrance fields, where very often samples with

Svensson, M. O. Hickman, S. Bartram, W. Boland, O. Pellmyr, R. A. Raguso, Chemistry and geographic variation of floral scent in Yucca filamentosa (Agavaceae), Am. J. Bot., 92, 1624–1631 (2005). 8. (a) C. Chen, Q. Song, Responses of the pollinating wasp Ceratosolen solmsi marchali to odor variation between two floral stages of Ficus hispida, J. Chem. Ecol., 34, 1534–1544 (2008); (b) C. Chen, Q. Song, M. Proffit, J.-M. Bessiere, Z. Li, M. Hossaert-McKey, Private channel: a single unusual compound

attractiveness. Recently, in 2008, Lacey et al. reported a typical example to show the complexity of a multicomponent pheromone.22 A male-produced aggregation pheromone of the cerambycid beetle Megacyllene caryae contained as many as eight male-specific compounds, as shown in Figure 5.10. These are (2R,3S)-2,3-hexanediol and its enantiomer (2S,3R)-2,3hexanediol (96), (S)-limonene (97), 2-phenylethanol (98), (S)-a-terpineol (99), nerol (100), neral (101) and geranial (102).22 None of these were

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