Identification of Volatile Compounds in Soybean at Various Developmental Stages Using Solid Phase Microextraction

Soybean (Glycine max) seed volatiles were analyzed using a solid phase microextraction (SPME) method combined with gas chromatography−mass spectrometry (GC-MS). Thirty volatile compounds already reported for soybean were recovered, and an additional 19 compounds not previously reported were identifi...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2003-08, Vol.51 (17), p.4873-4876
Main Authors: Boué, Stephen M, Shih, Betty Y, Carter-Wientjes, Carol H, Cleveland, Thomas E
Format: Article
Language:English
Subjects:
aldehydes
Aldehydes - analysis
ethanol
gas chromatography
Gas Chromatography-Mass Spectrometry
Glycine max
Glycine max - chemistry
Glycine max - growth & development
ketones
Ketones - analysis
mass spectrometry
maturity stage
microextraction
Plant Extracts - chemistry
Seeds - chemistry
soybeans
volatile compounds
Volatilization
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Summary:Soybean (Glycine max) seed volatiles were analyzed using a solid phase microextraction (SPME) method combined with gas chromatography−mass spectrometry (GC-MS). Thirty volatile compounds already reported for soybean were recovered, and an additional 19 compounds not previously reported were identified or tentatively identified. The SPME method was utilized to compare the volatile profile of soybean seed at three distinct stages of development. Most of the newly reported compounds in soybean seed were aldehydes and ketones. During early periods of development at maturity stage R6, several volatiles were present at relatively high concentrations, including 3-hexanone, (E)-2-hexenal, 1-hexanol, and 3-octanone. At maturity stage R7 and R8, decreased amounts of 3-hexanone, (E)-2-hexenal, 1-hexanol, and 3-octanone were observed. At maturity stage R8 hexanal, (E)-2-heptenal, (E)-2-octenal, ethanol, 1-hexanol, and 1-octen-3-ol were detected at relatively high concentrations. SPME offers the ability to differentiate between the three soybean developmental stages that yield both fundamental and practical information. Keywords: Soybean; volatiles; maturity; gas chromatography; mass spectrometry; solid phase microextraction; SPME
ISSN:0021-8561
1520-5118
DOI:10.1021/jf030051q