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Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano
Thymus vulgaris L. (thyme), Origanum majorana L. (marjoram), and Origanum vulgare L. (oregano) were used to determine whether light modification (plants grown under nets with 40% shaded index or in un-shaded open field) could improve the quantity and quality of essential oils (EOs) and antioxidant a...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8568991/ https://www.ncbi.nlm.nih.gov/pubmed/34764769 http://dx.doi.org/10.1016/j.sjbs.2021.07.018 |
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author | Milenković, Lidija Ilić, Zoran S. Šunić, Ljubomir Tmušić, Nadica Stanojević, Ljiljana Stanojević, Jelena Cvetković, Dragan |
author_facet | Milenković, Lidija Ilić, Zoran S. Šunić, Ljubomir Tmušić, Nadica Stanojević, Ljiljana Stanojević, Jelena Cvetković, Dragan |
author_sort | Milenković, Lidija |
collection | PubMed |
description | Thymus vulgaris L. (thyme), Origanum majorana L. (marjoram), and Origanum vulgare L. (oregano) were used to determine whether light modification (plants grown under nets with 40% shaded index or in un-shaded open field) could improve the quantity and quality of essential oils (EOs) and antioxidant activity. The yield of EOs of thyme, marjoram, and oregano obtained after 120 min of hydrodistillation was 2.32, 1.51, and 0.27 mL/100 g of plant material, respectively. At the same time under shading conditions plants synthetized more EOs (2.57, 1.68, and 0.32 mL/100 g of plant material). GC/MS and GC/FID analyses were applied for essential oils determinations. The main components of the thyme essential oil are thymol (8.05–9.35%); γ-terpinene (3.49–4.04%); p-cymene (2.80–3.60%) and caryophyllene oxide (1.54–2.15%). Marjoram main components were terpinene 4-ol (7.44–7.63%), γ-terpinene (2.82–2.86%) and linalool (2.04–2.65%) while oregano essential oil consisted of the following components: caryophyllene oxide (3.1–1.93%); germacrene D (1.17–2.0%) and (E)-caryophyllene (1.48–1.1%). The essential oil from thyme grown under shading (EC(50) value after 20 min of incubation) have shown the highest antioxidant activity – 0.85 mg mL(−1) in comparison to marjoram and oregano (shaded plants EC(50) 19.97 mg mL(−1) and 7.02 mg mL(−1) and unshaded, control plants EC(50) 54.01 mg mL(−1) and 7.45 mg mL(−1), respectively). The medicinal plants are a good source of natural antioxidants with potential application in the food and pharmaceutical industries. For production practice, it can be recommended to grow medicinal plants in shading conditions to achieve optimal quality parameters. |
format | Online Article Text |
id | pubmed-8568991 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-85689912021-11-10 Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano Milenković, Lidija Ilić, Zoran S. Šunić, Ljubomir Tmušić, Nadica Stanojević, Ljiljana Stanojević, Jelena Cvetković, Dragan Saudi J Biol Sci Original Article Thymus vulgaris L. (thyme), Origanum majorana L. (marjoram), and Origanum vulgare L. (oregano) were used to determine whether light modification (plants grown under nets with 40% shaded index or in un-shaded open field) could improve the quantity and quality of essential oils (EOs) and antioxidant activity. The yield of EOs of thyme, marjoram, and oregano obtained after 120 min of hydrodistillation was 2.32, 1.51, and 0.27 mL/100 g of plant material, respectively. At the same time under shading conditions plants synthetized more EOs (2.57, 1.68, and 0.32 mL/100 g of plant material). GC/MS and GC/FID analyses were applied for essential oils determinations. The main components of the thyme essential oil are thymol (8.05–9.35%); γ-terpinene (3.49–4.04%); p-cymene (2.80–3.60%) and caryophyllene oxide (1.54–2.15%). Marjoram main components were terpinene 4-ol (7.44–7.63%), γ-terpinene (2.82–2.86%) and linalool (2.04–2.65%) while oregano essential oil consisted of the following components: caryophyllene oxide (3.1–1.93%); germacrene D (1.17–2.0%) and (E)-caryophyllene (1.48–1.1%). The essential oil from thyme grown under shading (EC(50) value after 20 min of incubation) have shown the highest antioxidant activity – 0.85 mg mL(−1) in comparison to marjoram and oregano (shaded plants EC(50) 19.97 mg mL(−1) and 7.02 mg mL(−1) and unshaded, control plants EC(50) 54.01 mg mL(−1) and 7.45 mg mL(−1), respectively). The medicinal plants are a good source of natural antioxidants with potential application in the food and pharmaceutical industries. For production practice, it can be recommended to grow medicinal plants in shading conditions to achieve optimal quality parameters. Elsevier 2021-11 2021-07-15 /pmc/articles/PMC8568991/ /pubmed/34764769 http://dx.doi.org/10.1016/j.sjbs.2021.07.018 Text en © 2021 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Original Article Milenković, Lidija Ilić, Zoran S. Šunić, Ljubomir Tmušić, Nadica Stanojević, Ljiljana Stanojević, Jelena Cvetković, Dragan Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title | Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title_full | Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title_fullStr | Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title_full_unstemmed | Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title_short | Modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
title_sort | modification of light intensity influence essential oils content, composition and antioxidant activity of thyme, marjoram and oregano |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8568991/ https://www.ncbi.nlm.nih.gov/pubmed/34764769 http://dx.doi.org/10.1016/j.sjbs.2021.07.018 |
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