Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)

<p>This study aimed to analyze the essential oils composition, phytochemistry,</p><p>anatomical and antioxidant activity of the genus Vitex (V. negundo and V. trifolia) and</p><p>Plectranthus (P. amboinicus and P. monostachyus) fr...

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Main Author: Fakhira Liyana Mohd Zaki
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Language:eng
Published: 2021
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Online Access:https://ir.upsi.edu.my/detailsg.php?det=8800
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institution Universiti Pendidikan Sultan Idris
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topic Q Science
spellingShingle Q Science
Fakhira Liyana Mohd Zaki
Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
description <p>This study aimed to analyze the essential oils composition, phytochemistry,</p><p>anatomical and antioxidant activity of the genus Vitex (V. negundo and V. trifolia) and</p><p>Plectranthus (P. amboinicus and P. monostachyus) from Lamiaceae family. The</p><p>essential oils were obtained via hydrodistillation technique and their chemical</p><p>compositions were determined by gas chromatography (GC-FID) and gas</p><p>chromatography-mass spectrometry (GC-MS). The phytochemicals were obtained</p><p>using chromatography techniques and their structures were confirmed by</p><p>spectroscopic data and comparison with literatures. The anatomical study have been</p><p>investigated on the lamina, midrib and petiole of the leaves part. The antioxidant</p><p>activity of the essential oils was investigated using DPPH free radical scavenging</p><p>assay. The study showed a total of 14 and 18 components were identified from the leaf</p><p>oils of V. negundo (92.8%) and V. trifolia (91.5%), respectively. The results revealed</p><p>that the essential oils are made up principally of -elemene (43.1%), spathulenol</p><p>(9.8%), -selinene (7.8%) for V. negundo, while viridiflorol (42.3%), -caryophyllene</p><p>(21.7%), and -elemene for V. trifolia. In the case of Plectranthus essential oils, 20</p><p>components was found from P. amboinicus (91.1%) and 37 components were</p><p>identified from P. monostachyus (98.8%) oils. The major components of P.</p><p>amboinicus oil were carvacrol (54.4%), -caryophyllene (8.9%), and -cisbergamotene</p><p>(7.7%), whereas P. monostachyus oil gave -caryophyllene (26.2%),</p><p>germacrene D (12.5%), -cadinene (9.2%), and germcarene B (8.8%). In addition,</p><p>viridiflorol and carvacrol have been successfully isolated from the crude oils, whereas</p><p>vanillic acid, vanillin, -sitosterol and -sitostenone were identified from the crude</p><p>extracts. The essential oil of P. amboinicus displayed strong antioxidant activity with</p><p>IC50 value 32.5 g/mL. Meanwhile, the oil gland has been found in lamina, midrib and</p><p>petiole of all essential oils. As conclusion, the composition of the essential oils from</p><p>four species of Lamiaceae family have shown various chemical components and</p><p>proved via anatomical study. The implication of this study demonstrates the</p><p>importance of the characterization of Lamiaceae taxa in elucidating phylogenetic</p><p>relationships as well as the potential of Plectranthus essential oils as a source of</p><p>natural antioxidants.</p>
format thesis
qualification_name
qualification_level Master's degree
author Fakhira Liyana Mohd Zaki
author_facet Fakhira Liyana Mohd Zaki
author_sort Fakhira Liyana Mohd Zaki
title Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
title_short Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
title_full Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
title_fullStr Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
title_full_unstemmed Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE)
title_sort investigation of essential oils, phytochemistry and anatomical of vitex negundo, vitex trifolia, plectranthus amboinicus and plectranthus monostachyus (lamiaceae)
granting_institution Universiti Pendidikan Sultan Idris
granting_department Fakulti Sains dan Matematik
publishDate 2021
url https://ir.upsi.edu.my/detailsg.php?det=8800
_version_ 1776104567224664064
spelling oai:ir.upsi.edu.my:88002023-03-20 Investigation of essential oils, Phytochemistry and anatomical of Vitex negundo, Vitex trifolia, Plectranthus amboinicus and Plectranthus monostachyus (LAMIACEAE) 2021 Fakhira Liyana Mohd Zaki Q Science <p>This study aimed to analyze the essential oils composition, phytochemistry,</p><p>anatomical and antioxidant activity of the genus Vitex (V. negundo and V. trifolia) and</p><p>Plectranthus (P. amboinicus and P. monostachyus) from Lamiaceae family. The</p><p>essential oils were obtained via hydrodistillation technique and their chemical</p><p>compositions were determined by gas chromatography (GC-FID) and gas</p><p>chromatography-mass spectrometry (GC-MS). The phytochemicals were obtained</p><p>using chromatography techniques and their structures were confirmed by</p><p>spectroscopic data and comparison with literatures. The anatomical study have been</p><p>investigated on the lamina, midrib and petiole of the leaves part. The antioxidant</p><p>activity of the essential oils was investigated using DPPH free radical scavenging</p><p>assay. The study showed a total of 14 and 18 components were identified from the leaf</p><p>oils of V. negundo (92.8%) and V. trifolia (91.5%), respectively. The results revealed</p><p>that the essential oils are made up principally of -elemene (43.1%), spathulenol</p><p>(9.8%), -selinene (7.8%) for V. negundo, while viridiflorol (42.3%), -caryophyllene</p><p>(21.7%), and -elemene for V. trifolia. In the case of Plectranthus essential oils, 20</p><p>components was found from P. amboinicus (91.1%) and 37 components were</p><p>identified from P. monostachyus (98.8%) oils. The major components of P.</p><p>amboinicus oil were carvacrol (54.4%), -caryophyllene (8.9%), and -cisbergamotene</p><p>(7.7%), whereas P. monostachyus oil gave -caryophyllene (26.2%),</p><p>germacrene D (12.5%), -cadinene (9.2%), and germcarene B (8.8%). In addition,</p><p>viridiflorol and carvacrol have been successfully isolated from the crude oils, whereas</p><p>vanillic acid, vanillin, -sitosterol and -sitostenone were identified from the crude</p><p>extracts. The essential oil of P. amboinicus displayed strong antioxidant activity with</p><p>IC50 value 32.5 g/mL. Meanwhile, the oil gland has been found in lamina, midrib and</p><p>petiole of all essential oils. As conclusion, the composition of the essential oils from</p><p>four species of Lamiaceae family have shown various chemical components and</p><p>proved via anatomical study. The implication of this study demonstrates the</p><p>importance of the characterization of Lamiaceae taxa in elucidating phylogenetic</p><p>relationships as well as the potential of Plectranthus essential oils as a source of</p><p>natural antioxidants.</p> 2021 thesis https://ir.upsi.edu.my/detailsg.php?det=8800 https://ir.upsi.edu.my/detailsg.php?det=8800 text eng closedAccess Masters Universiti Pendidikan Sultan Idris Fakulti Sains dan Matematik <p>Abu Bakar, F.I., Abu Bakar, M.F., Abdullah, N., Endrini, S. & Rahmat, A. (2018). A review of</p><p>malaysian medicinal plants with potential anti-inflammatory activity. Advances in Pharmacological</p><p>Sciences, 1, 1-13.</p><p></p><p>Abulfatih, H.A. (1987). Medicinal Plants in Southwestern Saudi Arabia (1st Ed.). Al Thaghr Press.</p><p></p><p>Aeri, V., Anantha Narayana, D.B. & Singh, D. (2020). 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