Volatile Components and Aroma Active Compounds in Aqueous Essence and Fresh Pink Guava Fruit Puree (Psidium guajava L.) by GC-MS and Multidimensional GC/GC-O
- 8 January 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 51 (5), 1421-1426
- https://doi.org/10.1021/jf020765l
Abstract
Characterization of the aromatic profile in commercial guava essence and fresh fruit puree by GC-MS yielded a total of 51 components quantified. Commercial essence was characterized to present a volatile profile rich in components with low molecular weight, especially alcohols, esters, and aldehydes, whereas in the fresh fruit puree terpenic hydrocarbons and 3-hydroxy-2-butanone were the most abundant components. In the olfactometric analyses totals of 43 and 48 aroma active components were detected by the panelists in commercial essence and fruit puree, respectively. New components were described for the first time as active aromatic constituents in pink guava fruit (3-penten-2-ol and 2-butenyl acetate). Principal differences between the aroma of the commercial guava essence and the fresh fruit puree could be related to acetic acid, 3-hydroxy-2-butanone, 3-methyl-1-butanol, 2,3-butanediol, 3-methylbutanoic acid, (Z)-3-hexen-1-ol, 6-methyl-5-hepten-2-one, limonene, octanol, ethyl octanoate, 3-phenylpropanol, cinnamyl alcohol, alpha-copaene, and an unknown component. (E)-2-Hexenal seems to be more significant to the aroma of the commercial essence than of the fresh fruit puree.Keywords
This publication has 10 references indexed in Scilit:
- Chemical Composition of the Essential Oil and Headspace Solid-Phase Microextraction of the Guava Fruit (Psidium guajava L.)Journal of Essential Oil Research, 2000
- Identification of the most odour-active volatiles in fresh, hand-extracted juice of Valencia late oranges by odour dilution techniquesFlavour and Fragrance Journal, 1998
- Representative Champagne Wine Extracts for Gas Chromatography Olfactometry AnalysisJournal of Agricultural and Food Chemistry, 1997
- Hyphenated Headspace-Gas Chromatography-Sniffing Technique: Screening of Impact Odorants and Quantitative Aromagram ComparisonsJournal of Agricultural and Food Chemistry, 1997
- The Occurrence of Pentane-2-Thiol in Guava FruitJournal of Essential Oil Research, 1994
- Differences of volatile and nonvolatile constituents between mature and ripe guava (Psidium guajava Linn.) fruitsJournal of Agricultural and Food Chemistry, 1992
- Volatile constituents ofPsidium Guajava l. (guava) fruitsFlavour and Fragrance Journal, 1991
- Extraction and gc-ms-specma data bank analysis of the aroma ofPsidium guajava L. fruit from EgyptFlavour and Fragrance Journal, 1991
- Two minor diterpenes from Euphorbia latexPhytochemistry, 1978
- Volatile constituents in guavaJournal of Agricultural and Food Chemistry, 1970