Screening for γ-Nonalactone in the Headspace of Freshly Cooked Non-Scented Rice Using SPME/GC-O and SPME/GC-MS
Open Access
- 10 August 2009
- Vol. 14 (8) , 2927-2934
Abstract
The determination of γ-nonalactone as one of the important odor-active compounds in freshly cooked non-scented rice is reported. It was evaluated by gas chromatography-olfactometry (GC-O) analysis and identified by gas chromatography-mass spectrometry (GC-MS) analysis in the headspace above the freshly cooked non-scented rice samples extracted by using a modified headspace solid-phase microextraction (SPME) method. This component had a mass spectrum with a characteristic ion peak at m/z 85 (100%) and a linear retention index (RI) of 2,023 on a DB Wax column, consistent with those of an authentic sample of γ-nonalactone. The odor characterization of a strong, sweet, coconut-like aroma of this compound was also validated by GC-O comparison with the authentic compound.Keywords
This publication has 30 references indexed in Scilit:
- Characterization of Aroma Active Compounds in Fruit Juice and Peel Oil of Jinchen Sweet Orange Fruit (Citrus sinensis (L.) Osbeck) by GC-MS and GC-OMolecules, 2008
- Characterization of Volatile Aroma Compounds in Cooked Black RiceJournal of Agricultural and Food Chemistry, 2007
- Determination of flavour profile in Iranian fragrant rice samples using cold‐fibre SPME–GC–TOF–MSFlavour and Fragrance Journal, 2007
- Analysis of Headspace Compounds of Distillers Grains using SPME in Conjunction with GC/MS and TGAJournal of Cereal Science, 2001
- Flavor of Cereal Products—A ReviewCereal Chemistry, 1997
- Comparative Studies on Volatile Components of Non-Fragrant and Fragrant RicesJournal of the Science of Food and Agriculture, 1996
- Contribution of volatiles to rice aromaJournal of Agricultural and Food Chemistry, 1988
- Aroma of cooked riceFood Reviews International, 1985
- Rice product volatiles: a reviewJournal of Agricultural and Food Chemistry, 1984
- Cooked rice aroma and 2-acetyl-1-pyrrolineJournal of Agricultural and Food Chemistry, 1983