Multiple-cumulative trapping non-saturated headspace SPME: A powerful tool to increase volatile fingerprints

Interest in developing coffee substitutes is on the rise, to minimizing its health side effects. In the Middle East, date palm (Phoenix dactylifera L.) pits are often used as a coffee substitute post roasting. In this study, commercially-roasted date pit products, along with unroasted and home-prepared roasted date pits, were subjected to analyses for their metabolite composition, and neuropharmacological evaluation in mice. Headspace SPME-GCMS and GCMS post silylation were employed for characterizing its volatile and non-volatile metabolite profile. For comparison to roasted coffee, coffee product was also included. There is evidence that some commercial date pit products appear to contain undeclared additives. SPME headspace analysis revealed the abundance of furans, pyrans, terpenoids and sulfur compounds in roasted date pits, whereas pyrroles and caffeine were absent. GCMS-post silylation employed for primary metabolite profiling revealed fatty acids’ enrichment in roasted pits versus sugars’ abundance in coffee. Biological investigations affirmed that date pit showed safer margin than coffee from its LD50, albeit it exhibits no CNS stimulant properties. This study provides the first insight into the roasting impact on the date pit through its metabolome and its neuropharmacological aspects to rationalize its use as a coffee substitute.

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A Screening Method for Polycyclic Aromatic Hydrocarbons Determination in Sediments by Headspace SPME with GC–FID

Chromatographia ◽

10.1365/s10337-008-0843-8 ◽

2008 ◽

Vol 69 (1-2) ◽

pp. 175-178 ◽

Cited By ~ 7

Author(s):

Daniel Zuazagoitia ◽

Esmeralda Millán ◽

Rosa Garcia-Arrona

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Aromatic Hydrocarbons ◽

Screening Method ◽

Polycyclic Aromatic ◽

Headspace Spme

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Comparison of headspace-SPME-GC–MS and LC–MS for the detection and quantification of coumarin, vanillin, and ethyl vanillin in vanilla extract products

Food Chemistry ◽

10.1016/j.foodchem.2007.09.070 ◽

2008 ◽

Vol 107 (4) ◽

pp. 1701-1709 ◽

Cited By ~ 48

Author(s):

Lowri S. De Jager ◽

Gracia A. Perfetti ◽

Gregory W. Diachenko

Keyword(s):

Ethyl Vanillin ◽

Headspace Spme ◽

Detection And Quantification

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Functionalized carbon nanotube/ionic liquid-coated wire as a new fiber assembly for determination of methamphetamine and ephedrine by gas chromatography-mass spectrometry

Analytical Methods ◽

10.1039/c4ay01394h ◽

2014 ◽

Vol 6 (21) ◽

pp. 8645-8653 ◽

Cited By ~ 6

Author(s):

Omid Narimani ◽

Naser Dalali ◽

Kobra Rostamizadeh

Keyword(s):

Mass Spectrometry ◽

Gas Chromatography ◽

Ionic Liquid ◽

Carbon Nanotube ◽

Steel Wire ◽

Gas Chromatography Mass Spectrometry ◽

Fiber Assembly ◽

Coated Wire ◽

Headspace Spme

Carbon nanotube–ionic liquid gel immobilized on a stainless steel wire as a novel fiber was successfully applied for headspace SPME of methamphetamine and ephedrine.

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