Identification of Aroma-Active Compounds in Malaysian Pomelo (Citrus grandis (L.) Osbeck) Peel by Gas Chromatography-Olfactometry

Malaysian pink and white pomelo (Citrusgrandis (L.) Osbeck) peels were extracted with dichloromethane (DCM). Using GC-FID/MS and gas chromatography-olfactometry (GC-O), 50 and 47 aroma-active compounds were identified in pink and white pomelo peel extracts, respectively. The potency of each odorant...

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Bibliographic Details
Published in:The Journal of essential oil research 2011-11, Vol.23 (6), p.34-42
Main Authors: Cheong, M.W, Liu, S.Q, Yeo, J, Chionh, H.K, Pramudya, K, Curran, P, Yu, B
Format: Article
Language:English
Subjects:
acetates
AEDA
alcohols
aldehydic
citronellal
citronellol
Citrus maxima
essential oils
flavor
GC-olfactometry
grapefruit-like
methylene chloride
nerolidol
nootkatone
odor compounds
odors
Pomelo
pummelos
RFA
terpinolene
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Summary:Malaysian pink and white pomelo (Citrusgrandis (L.) Osbeck) peels were extracted with dichloromethane (DCM). Using GC-FID/MS and gas chromatography-olfactometry (GC-O), 50 and 47 aroma-active compounds were identified in pink and white pomelo peel extracts, respectively. The potency of each odorant in both pomelo peel extracts was determined by aroma extraction dilution analysis (AEDA). On the basis of flavor dilution (FD) factor, odor activity value (OAV) and relative flavor activity (RFA), main odorants in pink pomelo peel extract were trans-linalool oxide, cis,trans-2,6-nonadienal, octanal, citronellal, nonanal, trans-nerolidol, neryl acetate, indole, 6-methyl-5-hepten-2-one, terpinolene, trans-2-heptenal, perilla alcohol and nootkatone, while the most intense aromas in white pomelo peel extract were terpinolene, α-copaene, 4-terpinenol, trans-nerolidol, trans-linalool oxide, nootkatone, cis,trans-2,6- nonadienal, citronellol, elemol, carvyl acetate, 6-methyl-5-hepten-2-one, perilla aldehyde and indole. Thus, no single compound exhibited the characteristic aroma of both Malaysian pomelo peel extracts.
ISSN:1041-2905
2163-8152
DOI:10.1080/10412905.2011.9712279