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Open AccessArticle

Sensory Metabolite Profiling in a Date Pit Based Coffee Substitute and in Response to Roasting as Analyzed via Mass Spectrometry Based Metabolomics

1
Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
2
Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
3
Toxicology and Narcotics Department, National Research Centre, Giza 12622, Egypt
4
Leibniz Institute of Plant Biochemistry, Dept. Bioorganic Chemistry, Weinberg 3, D-06120 Halle (Saale), Germany
*
Authors to whom correspondence should be addressed.
Molecules 2019, 24(18), 3377; https://doi.org/10.3390/molecules24183377
Received: 13 August 2019 / Revised: 5 September 2019 / Accepted: 6 September 2019 / Published: 17 September 2019
(This article belongs to the Special Issue Bioactives and Functional Ingredients in Foods and Beverages)
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. View Full-Text
Keywords: Phoenix dactylifera; date palm; coffee; volatiles; multivariate analysis Phoenix dactylifera; date palm; coffee; volatiles; multivariate analysis
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MDPI and ACS Style

Farag, M.A.; Otify, A.M.; El-Sayed, A.M.; Michel, C.G.; ElShebiney, S.A.; Ehrlich, A.; Wessjohann, L.A. Sensory Metabolite Profiling in a Date Pit Based Coffee Substitute and in Response to Roasting as Analyzed via Mass Spectrometry Based Metabolomics. Molecules 2019, 24, 3377. https://doi.org/10.3390/molecules24183377

AMA Style

Farag MA, Otify AM, El-Sayed AM, Michel CG, ElShebiney SA, Ehrlich A, Wessjohann LA. Sensory Metabolite Profiling in a Date Pit Based Coffee Substitute and in Response to Roasting as Analyzed via Mass Spectrometry Based Metabolomics. Molecules. 2019; 24(18):3377. https://doi.org/10.3390/molecules24183377

Chicago/Turabian Style

Farag, Mohamed A.; Otify, Asmaa M.; El-Sayed, Aly M.; Michel, Camilia G.; ElShebiney, Shaimaa A.; Ehrlich, Anja; Wessjohann, Ludger A. 2019. "Sensory Metabolite Profiling in a Date Pit Based Coffee Substitute and in Response to Roasting as Analyzed via Mass Spectrometry Based Metabolomics" Molecules 24, no. 18: 3377. https://doi.org/10.3390/molecules24183377

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