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Olfactory Perception of Cysteine−S-Conjugates from Fruits and Vegetables
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Section:Abstract
Volatile sulfur compounds have a low odor threshold, and their presence at microgram per kilogram levels in fruits and vegetables influences odor quality. Sensory analysis demonstrates that naturally occurring, odorless cysteine−S-conjugates such as S-(R/S)-3-(1-hexanol)-l-cysteine in wine, S-(1-propyl)-l-cysteine in onion, and S-((R/S)-2-heptyl)-l-cysteine in bell pepper are transformed into volatile thiols in the mouth by microflora. The time delay in smelling these volatile thiols was 20−30 s, and persistent perception of their odor occurred for 3 min. The cysteine−S-conjugates are transformed in free thiol by anaerobes. The mouth acts as a reactor, adding another dimension to odor perception, and saliva modulates flavors by trapping free thiols.
Keywords:
Mouth microflora; Fusobacterium nucleatum; saliva; cysteine−S-conjugates; sensory analysisCiting Articles
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This article has been cited by 6 ACS Journal articles (5 most recent appear below).
Identification and Quantitation of 3-S-Cysteinylglycinehexan-1-ol (Cysgly-3-MH) in Sauvignon blanc Grape Juice by HPLC-MS/MS
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Nonvolatile S-Alk(en)ylthio-l-cysteine Derivatives in Fresh Onion (Allium cepa L. Cultivar)
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Christian Starkenmann, Yvan Niclass, and Myriam TroccazJournal of Agricultural and Food Chemistry2011 Article ASAPThe l-cysteine derivatives (R)-2-amino-3-(methyldisulfanyl)propanoic acid (S-methylthio-l-cysteine), (R)-2-amino-3-(propyldisulfanyl)propanoic acid (S-propylthio-l-cysteine), (R)-2-amino-3-(1-propenyldisulfanyl)propanoic acid (S-(1-propenylthio)-l-...
Application of a Modified Method for 3-Mercaptohexan-1-ol Determination To Investigate the Relationship between Free Thiol and Related Conjugates in Grape Juice and Wine
Dimitra L. Capone, Mark A. Sefton, and David W. JefferyJournal of Agricultural and Food Chemistry2011 59 (9), 4649-4658Application of a Modified Method for 3-Mercaptohexan-1-ol Determination To Investigate the Relationship between Free Thiol and Related Conjugates in Grape Juice and Wine
Dimitra L. Capone, Mark A. Sefton, and David W. JefferyJournal of Agricultural and Food Chemistry2011 59 (9), 4649-4658A method has been developed for determining 3-mercaptohexan-1-ol (3-MH) in wine and grape juice using gas chromatography with conventional electron ionization (EI) mass spectrometry. The limit of quantitation of 40 ng/L was achieved with excellent ...
New Cysteine-S-Conjugate Precursors of Volatile Sulfur Compounds in Bell Peppers (Capsicum annuum L. Cultivar)
Christian Starkenmann and Yvan NiclassJournal of Agricultural and Food Chemistry2011 59 (7), 3358-3365New Cysteine-S-Conjugate Precursors of Volatile Sulfur Compounds in Bell Peppers (Capsicum annuum L. Cultivar)
Christian Starkenmann and Yvan NiclassJournal of Agricultural and Food Chemistry2011 59 (7), 3358-3365The objective of this study was to verify whether the volatile organic sulfur compounds recently discovered in bell pepper (Capsicum annuum, L. cultivars), such as the mercapto-ketones: 4-sulfanyl-2-heptanone and 2-sulfanyl-4-heptanone, the mercapto-...
New Factor Characterizing the In-Mouth Release of Odorants (Volatile Thiols): Compositional Changes in Odorants Exhaled from the Human Nose during Drinking
Takafumi Itobe, Kenji Kumazawa and Osamu NishimuraJournal of Agricultural and Food Chemistry2009 57 (23), 11297-11301New Factor Characterizing the In-Mouth Release of Odorants (Volatile Thiols): Compositional Changes in Odorants Exhaled from the Human Nose during Drinking
Takafumi Itobe, Kenji Kumazawa and Osamu NishimuraJournal of Agricultural and Food Chemistry2009 57 (23), 11297-11301The aim of this research was to investigate the relationship between the odorants in the model drink and the odorants reaching the olfactory epithelium using the Retronasal Flavor Impression Screening System (R-FISS). By application of the R-FISS to the ...
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History
- Published In Issue October 22, 2008
- Article ASAPSeptember 24, 2008
- Received: June 18, 2008
Accepted: August 24, 2008
Revised: August 13, 2008
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