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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MDPI AG
2022-03-01
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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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