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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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