Chemical analysis of French beans (Phaseolus vulgaris L.) by headspace solid phase microextraction (HS-SPME) and simultaneous distillation/extraction (SDE) |
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Authors: | A Barra N Baldovini A-M Loiseau L Albino C Lesecq L Lizzani Cuvelier |
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Affiliation: | 1. Université de Nice, Laboratoire Arômes, Synthèses et Interactions, Parc Valrose, 06108 Nice cedex 2, France;2. Bonduelle S.A., Service R&D, La Woestyne BP1, 59173 Renescure, France |
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Abstract: | Headspace Solid Phase Microextraction (HS-SPME) involving divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fibre and simultaneous distillation/extraction (SDE) techniques were applied to study the volatile and semi volatile compounds of thawed and cooked Phaseolus vulgaris L. A total of 104 compounds were detected by GC and GC/MS. Thereof, 76 compounds were identified for the first time in this species. The major differences between HS-SPME and SDE were found in the content of identified alcohols (23.62% SDE versus 62.20% SPME), terpenoids (39.15% SDE versus 2.45% SPME), heterocyclic compounds (13.78% SDE versus 1.21% SPME), hydrocarbons (2.22% SDE versus 13.87% SPME) and esters (0.98% SDE versus 12.98% SPME). The SPME technique was found to be useful for rapid and routine quality controls of thawed French beans, while SDE is favourable to study the entire set of flavour volatiles in the corresponding cooked samples. |
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Keywords: | Phaseolus vulgaris L French beans Aroma compounds Headspace solid phase microextraction (HS-SPME) Simultaneous distillation/extraction (SDE) |
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