Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves

(1) Background: The leaves of some plants are reported for their culinary uses, while in edible flowers, they are one of the discarded products in the supply chain. We investigated the volatile profile (VP) and the essential oil (EO) compositions of leaves from 12 Lamiaceae species, of which nine be...

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Main Authors: Basma Najar, Laura Pistelli, Ilaria Marchioni, Luisa Pistelli
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/7/2172
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author Basma Najar
Laura Pistelli
Ilaria Marchioni
Luisa Pistelli
author_facet Basma Najar
Laura Pistelli
Ilaria Marchioni
Luisa Pistelli
author_sort Basma Najar
collection DOAJ
description (1) Background: The leaves of some plants are reported for their culinary uses, while in edible flowers, they are one of the discarded products in the supply chain. We investigated the volatile profile (VP) and the essential oil (EO) compositions of leaves from 12 Lamiaceae species, of which nine belong to the Mentheae tribe and three to the Ocimeae tribe. (2) Methods: Phytochemical analyses were performed using a GC-MS instrument. (3) Results: More than 53% of the Ocimeae tribe VP was represented by sesquiterpene hydrocarbons (SH), followed by phenylpropanoids, except for <i>O.</i> × <i>citriodorum,</i> where oxygenated monoterpenes (OM) were the second main class. OM prevailed in six species of the Mentheae tribe except for <i>Agastache</i> ‘Arcado Pink’, <i>Salvia discolor</i>, and <i>S. microphylla,</i> where SH dominated. The EO composition of Ocimeae tribe showed a similar behavior to that of VP concerning the predominant classes. <i>O. basilicum</i> ‘Blue Spice’ (Ob-BS) was an exception, since it showed oxygenated sesquiterpenes (OS: 29.6%) as a second principal class. Sesquiterpene compounds were also present in a high amount in two species of the Salviinae subtribe (<i>S. microphylla</i> and <i>S. discolor</i>) and two of the Nepetinae subtribe (<i>Nepeta</i> × <i>faasenii</i> and <i>A.</i> ‘Arcado Pink’). The remaining species of the Mentheae tribe were characterized by OM. (4) Conclusions: Many of the main compounds found were reported for their importance in human health and thus are important as ingredients in several new industrial products.
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spelling doaj.art-6ce118822df047a3a270e70663bc042b2023-11-30T23:40:34ZengMDPI AGMolecules1420-30492022-03-01277217210.3390/molecules27072172Valorization of a Waste Product of Edible Flowers: Volatile Characterization of LeavesBasma Najar0Laura Pistelli1Ilaria Marchioni2Luisa Pistelli3Dipartimento Scienze Agrarie, Alimentari e Agro-ambientali (DISAAA-a), Università di Pisa, 56124 Pisa, ItalyDipartimento Scienze Agrarie, Alimentari e Agro-ambientali (DISAAA-a), Università di Pisa, 56124 Pisa, ItalyDipartimento Scienze Agrarie, Alimentari e Agro-ambientali (DISAAA-a), Università di Pisa, 56124 Pisa, ItalyCentro Interdipartimentale di Ricerca Nutraceutica e Alimentazione per la Salute (NUTRA-FOOD), Università di Pisa, 56124 Pisa, Italy(1) Background: The leaves of some plants are reported for their culinary uses, while in edible flowers, they are one of the discarded products in the supply chain. We investigated the volatile profile (VP) and the essential oil (EO) compositions of leaves from 12 Lamiaceae species, of which nine belong to the Mentheae tribe and three to the Ocimeae tribe. (2) Methods: Phytochemical analyses were performed using a GC-MS instrument. (3) Results: More than 53% of the Ocimeae tribe VP was represented by sesquiterpene hydrocarbons (SH), followed by phenylpropanoids, except for <i>O.</i> × <i>citriodorum,</i> where oxygenated monoterpenes (OM) were the second main class. OM prevailed in six species of the Mentheae tribe except for <i>Agastache</i> ‘Arcado Pink’, <i>Salvia discolor</i>, and <i>S. microphylla,</i> where SH dominated. The EO composition of Ocimeae tribe showed a similar behavior to that of VP concerning the predominant classes. <i>O. basilicum</i> ‘Blue Spice’ (Ob-BS) was an exception, since it showed oxygenated sesquiterpenes (OS: 29.6%) as a second principal class. Sesquiterpene compounds were also present in a high amount in two species of the Salviinae subtribe (<i>S. microphylla</i> and <i>S. discolor</i>) and two of the Nepetinae subtribe (<i>Nepeta</i> × <i>faasenii</i> and <i>A.</i> ‘Arcado Pink’). The remaining species of the Mentheae tribe were characterized by OM. (4) Conclusions: Many of the main compounds found were reported for their importance in human health and thus are important as ingredients in several new industrial products.https://www.mdpi.com/1420-3049/27/7/2172LamiaceaeMentheae tribeOcimeae tribeSalviinae subtribeNepetinae subtribeMenthinae subtribe
spellingShingle Basma Najar
Laura Pistelli
Ilaria Marchioni
Luisa Pistelli
Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
Molecules
Lamiaceae
Mentheae tribe
Ocimeae tribe
Salviinae subtribe
Nepetinae subtribe
Menthinae subtribe
title Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
title_full Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
title_fullStr Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
title_full_unstemmed Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
title_short Valorization of a Waste Product of Edible Flowers: Volatile Characterization of Leaves
title_sort valorization of a waste product of edible flowers volatile characterization of leaves
topic Lamiaceae
Mentheae tribe
Ocimeae tribe
Salviinae subtribe
Nepetinae subtribe
Menthinae subtribe
url https://www.mdpi.com/1420-3049/27/7/2172
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AT laurapistelli valorizationofawasteproductofedibleflowersvolatilecharacterizationofleaves
AT ilariamarchioni valorizationofawasteproductofedibleflowersvolatilecharacterizationofleaves
AT luisapistelli valorizationofawasteproductofedibleflowersvolatilecharacterizationofleaves