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Characterization of Odorants in Southern Mountain Mint, Pycnanthemum pycnanthemoides.
J Agric Food Chem. 2022 Aug 10; 70(31):9722-9729.JA

Abstract

Southern mountain mint, Pycnanthemum pycnanthemoides (Leavenw.) Fernald, is a mountain mint species endemic to the southeastern United States. The odorants responsible for the plant's odor have not been previously characterized. In this study, 28 odorants were identified in a high-vacuum distillate of P. pycnanthemoides employing gas chromatography-olfactometry and gas chromatography-mass spectrometry. Flavor dilution (FD) factors were determined by aroma extract dilution analysis. Ten odorants with FD factors ≥16 were quantitated by stable isotope dilution assays, odor activity values (OAVs) were calculated, and the stereochemistry of chiral odorants was determined. Odorants with OAV ≥1 included β-ionone (floral, violet; OAV 310), piperitenone (mint; OAV 100), piperitone (mint; OAV 87), linalool (floral, citrus; OAV 45), myrcene (terpeny; OAV 35), (R)-(+)-pulegone (mint, medicinal; OAV 18), (2S,5R)-(-)-menthone (mint, fresh; OAV 6.6), and 1,8-cineole (eucalyptus; OAV 4.0). An odor simulation model based on the quantitative analysis was a close match to the sensory attributes of an aqueous infusion of dried P. pycnanthemoides. The study's results establish insights into the complex odor profile of P. pycnanthemoides and provide a foundation for future studies on the odor variability within P. pycnanthemoides and other species of the Pycnanthemum genus.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Dein M
Department of Food Science, University of Tennessee, Knoxville, Tennessee 37996, United States.
Munafo JP
Department of Food Science, University of Tennessee, Knoxville, Tennessee 37996, United States.

MeSH

Flavoring AgentsGas Chromatography-Mass SpectrometryLamiaceaeMenthaOdorantsOlfactometryVolatile Organic Compounds

Pub Type(s)

Journal Article

Language

eng

PubMed ID

35913050

Citation

Dein, Melissa, and John P. Munafo. "Characterization of Odorants in Southern Mountain Mint, Pycnanthemum Pycnanthemoides." Journal of Agricultural and Food Chemistry, vol. 70, no. 31, 2022, pp. 9722-9729.
Dein M, Munafo JP. Characterization of Odorants in Southern Mountain Mint, Pycnanthemum pycnanthemoides. J Agric Food Chem. 2022;70(31):9722-9729.
Dein, M., & Munafo, J. P. (2022). Characterization of Odorants in Southern Mountain Mint, Pycnanthemum pycnanthemoides. Journal of Agricultural and Food Chemistry, 70(31), 9722-9729. https://doi.org/10.1021/acs.jafc.2c02860
Dein M, Munafo JP. Characterization of Odorants in Southern Mountain Mint, Pycnanthemum Pycnanthemoides. J Agric Food Chem. 2022 Aug 10;70(31):9722-9729. PubMed PMID: 35913050.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Characterization of Odorants in Southern Mountain Mint, Pycnanthemum pycnanthemoides. AU - Dein,Melissa, AU - Munafo,John P,Jr Y1 - 2022/08/01/ PY - 2022/8/2/pubmed PY - 2022/8/12/medline PY - 2022/8/1/entrez KW - Pycnanthemum pycnanthemoides KW - aroma extract dilution analysis KW - southern mountain mint KW - stable isotope dilution assay SP - 9722 EP - 9729 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 70 IS - 31 N2 - Southern mountain mint, Pycnanthemum pycnanthemoides (Leavenw.) Fernald, is a mountain mint species endemic to the southeastern United States. The odorants responsible for the plant's odor have not been previously characterized. In this study, 28 odorants were identified in a high-vacuum distillate of P. pycnanthemoides employing gas chromatography-olfactometry and gas chromatography-mass spectrometry. Flavor dilution (FD) factors were determined by aroma extract dilution analysis. Ten odorants with FD factors ≥16 were quantitated by stable isotope dilution assays, odor activity values (OAVs) were calculated, and the stereochemistry of chiral odorants was determined. Odorants with OAV ≥1 included β-ionone (floral, violet; OAV 310), piperitenone (mint; OAV 100), piperitone (mint; OAV 87), linalool (floral, citrus; OAV 45), myrcene (terpeny; OAV 35), (R)-(+)-pulegone (mint, medicinal; OAV 18), (2S,5R)-(-)-menthone (mint, fresh; OAV 6.6), and 1,8-cineole (eucalyptus; OAV 4.0). An odor simulation model based on the quantitative analysis was a close match to the sensory attributes of an aqueous infusion of dried P. pycnanthemoides. The study's results establish insights into the complex odor profile of P. pycnanthemoides and provide a foundation for future studies on the odor variability within P. pycnanthemoides and other species of the Pycnanthemum genus. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/35913050/Characterization_of_Odorants_in_Southern_Mountain_Mint_Pycnanthemum_pycnanthemoides_ DB - PRIME DP - Unbound Medicine ER -