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Characterization of spoilage-related volatile organic compounds in packaged leaf salads

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00519358" target="_blank" >RIV/61388955:_____/20:00519358 - isvavai.cz</a>

  • Result on the web

    <a href="http://hdl.handle.net/11104/0304353" target="_blank" >http://hdl.handle.net/11104/0304353</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/ffj.3535" target="_blank" >10.1002/ffj.3535</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Characterization of spoilage-related volatile organic compounds in packaged leaf salads

  • Original language description

    A study has been made of the volatile organic compounds (VOCs) released into the contained headspace of packaged lamb's lettuce (Valerianella locusta) plants, cut at the roots, and of separated rocket (Eruca sativa) and baby spinach (Spinacia oleracea) leaves. Direct real-time analyses of the headspace were carried out on each of five consecutive days using selected-ion flow-tube mass spectrometry (SIFT-MS) and secondary electrospray ionization mass spectrometry (SESI-MS), together with concomitant off-line analyses using solid-phase microextraction (SPME) and gas chromatography mass spectrometry (GC-MS). It was observed that the concentrations of organosulphur compounds, especially dimethyl sulphide (DMS) and dimethyl disulphide (DMDS) were relatively low in the headspace of fresh samples, but increased exponentially over the 5 days for rocket, increased to a lesser extent for spinach, and increased to an even lesser extent for lamb's lettuce. Methanol was detected in the headspace of even fresh samples of lamb's lettuce, and its concentration increased for the subsequent 2–3 days before decreasing. This trend was mirrored in the isoprenoids analysed, which are characteristic of plant tissues. These results show that direct real-time VOC analyses by SIFT-MS can be usefully exploited to monitor fresh leaf salad spoilage, and that SESI-MS spectra show patterns that are characteristic of salad type and storage time.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10403 - Physical chemistry

Result continuities

  • Project

    <a href="/en/project/GA18-12902S" target="_blank" >GA18-12902S: Secondary electrospray ionization mass spectrometry (SESI-MS) for quantification of gaseous analytes in air, headspace and breath</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Flavour and Fragrance Journal

  • ISSN

    0882-5734

  • e-ISSN

  • Volume of the periodical

    35

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    24-33

  • UT code for WoS article

    000531410600002

  • EID of the result in the Scopus database

    2-s2.0-85071921609