Worldwide, there are plants known as psychoactive plants that naturally contain psychedelic active components. They have a high concentration of neuroprotective substances that can interact with the nervous system to produce psychedelic effects. Despite these plants' hazardous potential, recreational use of them is on the rise because of their psychoactive properties. Early neuroscience studies relied heavily on psychoactive plants and plant natural products (NPs), and both recreational and hazardous NPs have contributed significantly to the understanding of almost all neurotransmitter systems. Worldwide, there are many plants that contain psychoactive properties, and people have been using them for ages. Psychoactive plant compounds may significantly alter how people perceive the world.
1. Sci Rep. 2024 May 23;14(1):11843. doi: 10.1038/s41598-024-62834-1. Multivariate analysis of the phytochemical composition and antioxidant properties in twenty-five accessions across three Achillea species. Farajpour M(1), Ebrahimi M(2), Sadat-Hosseini M(3), Al-Fekaiki DF(4), Baghizadeh A(5). Author information: (1)Crop and Horticultural Science Research Department, Mazandaran Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran. m.farajpour@areeo.ac.ir. (2)Department of Agronomy and Plant Breeding, College of Abourihan, University of Tehran, Tehran, Iran. mebrahimi@ut.ac.ir. (3)Department of Horticultural Science, Faculty of Agriculture, University of Jiroft, Jiroft, Iran. (4)Department of Food Sciences, Agriculture College, Basrah University, 61004, Basrah, Iraq. (5)Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran. This study explored the chemical composition, antioxidant activity, and total phenol content of aerial parts from 25 accessions of three Achillea species (Achillea wilhelmsii C. Koch, Achillea vermicularis Trin., and Achillea tenuifolia Lam.). The plants were collected from various natural habitats across Iran, encompassing regions such as Central, Western, Southern, Northern, Western, and Northwestern parts of the country. Subsequently, they were grown together under field conditions. The study revealed significant variation in essential oil yields among accessions of A. wilhelmsii, ranging from 0.01 to 0.107%, A. vermicularis with a range of 0.075 to 1.5%, and A. tenuifolia showing a variation of 0.1 to 2%. The study utilized Gas Chromatography-Mass Spectrometry (GC-MS) analysis, revealing 75, 49, and 75 compounds in the essential oils of A. wilhelmsii, A. tenuifolia, and A. vermicularis, respectively. Major components included camphor, 1,8-cineole, anethole, α-pinene, and phytol in A. wilhelmsii, 1,8-cineole, camphor, levo-carvone, and δ-terpinene in A. vermicularis, and β-cubebene, elixene, β-sesquiphellandrene, 1,8-cineole, camphor, and δ-terpinene in A. tenuifolia. The essential oil compositions of A. wilhelmsii and A. vermicularis were predominantly characterized by oxygenated monoterpenes, whereas that of A. tenuifolia was characterized by sesquiterpenes. Cluster analysis grouped accessions into three clusters, with A. tenuifolia forming a distinct group. Principal Component Analysis (PCA) triplot (62.21% of total variance) confirmed these results and provided insights into compound contributions. Furthermore, total phenolic content and antioxidant activity of the accessions of three species were assessed over 2 years. A. tenuifolia exhibited the highest levels in both categories, with statistically significant linear regression between antioxidant activity and total phenol content for A. tenuifolia and A. wilhelmsii. These findings emphasize significant phytochemical diversity within Achillea species, positioning them as promising natural sources of antioxidants. Further exploration and selection of specific accessions within each species are crucial for unlocking their medicinal potential and supporting cultivation and conservation efforts. © 2024. The Author(s). DOI: 10.1038/s41598-024-62834-1 PMCID: PMC11116415 PMID: 38783072 [Indexed for MEDLINE] Conflict of interest statement: The authors declare no competing interests. 2. Plants (Basel). 2024 Jan 16;13(2):253. doi: 10.3390/plants13020253. Chemical Analysis of the Essential Oils from Three Populations of Lippia dulcis Trevir. Grown at Different Locations in Southern Ecuador. Castillo LN(1), Calva J(1), Ramírez J(1), Vidari G(2), Armijos C(1). Author information: (1)Departamento de Química, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador. (2)Department of Medical Analysis, Faculty of Applied Science, Tishk International University, Erbil 44001, Iraq. In this investigation, we have analyzed for the first time the essential oils (EOs) isolated by steam distillation of the leaves and flowers of Lippia dulcis Trevir., grown at three different locations in southern Ecuador: the Catacocha canton (Ca), the Vilcabamba parish (Vi), and the Chuquiribamba parish (Ch). Around 98.5% of the oils' constituents were identified by Gas Chromatography-Mass Spectrometry (GC-MS) and Gas Chromatography-Flame Ionization Detector (GC-FID) analysis using a DB-5ms capillary column. Sesquiterpene hydrocarbons were predominant in the EOs (79.77, 78.22, and 76.51%, respectively). The most representative constituents of the sample from the Ca canton were β-cedrene (16.75%), δ-selinene (11.04%), and β-cubebene (12.09%), while the sample from the Vi parish was characterized by the abundant presence of β-cedrene (17.9%), δ-selinene (12.52%), and bicyclogermacrene (11.34%). β-Cedrene (18.89%), δ-selinene (11.78%), and δ-cadinene (11.07%) were the main constituents of the essential oil (EO) from the Ch parish. The likely occurrence of low amounts of thermolabile hernandulcin in the volatile oils was indicated by the presence of the fragmentation products 6-methyl-5-hepten-2-one and 3-methyl-2-ciclohexen-1-one. In summary, the study gave us a clue to the variability of Lippia dulcis chemotypes depending on the collection sites. DOI: 10.3390/plants13020253 PMCID: PMC10821391 PMID: 38256806 Conflict of interest statement: The authors declare no conflicts of interest. 3. Food Chem. 2024 Mar 1;435:137518. doi: 10.1016/j.foodchem.2023.137518. Epub 2023 Sep 16. Early detection of dry bubble disease in Agaricus bisporus using volatile compounds. Hayes W(1), Keenan C(2), Wilson J(3), Onarinde BA(4). Author information: (1)National Centre for Food Manufacturing, University of Lincoln, 2 Peppermint Way, Holbeach, Lincs, PE12 7FJ, United Kingdom. Electronic address: whayes@lincoln.ac.uk. (2)BiOrbic, Bioeconomy SFI Research Centre, University College Dublin, Belfield, Dublin 4, Ireland. Electronic address: cathy.keenan@biorbic.com. (3)MBio, Monaghan Mushrooms Group, Tyholland, Co. Monaghan, Ireland. Electronic address: Jude.Wilson@MBIO.ie. (4)National Centre for Food Manufacturing, University of Lincoln, 2 Peppermint Way, Holbeach, Lincs, PE12 7FJ, United Kingdom. Electronic address: bOnarinde@lincoln.ac.uk. Lecanicillium fungicola is a pathogen of the commercial white button mushroom (Agaricus bisporus) and is the causal agent of dry bubble disease, which can cause severe economic losses to mushroom growers. Volatile compounds were measured by GC/MS techniques over pure cultures of mycelia on agars, over microcosms of growing mushrooms, and over harvested mushrooms to identify compounds that might give an early warning of the disease. The mushroom strain tested was Agaricus bisporus, strain Sylvan A15; either deliberately infected with L. fungicola or water as a control. Over microcosms, the appearance of β-copaene, β-cubebene, and α-cedrene coincided with, but did not precede, the earliest visual signs of the disease. Mushrooms with dry bubble symptoms also had high levels of β-barbatene and an unknown diterpene (UK 1821). Over some harvested mushroom sets, high levels of cis-α-bisabolene developed as a defence reaction to infection. Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved. DOI: 10.1016/j.foodchem.2023.137518 PMID: 37788541 [Indexed for MEDLINE] Conflict of interest statement: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. 4. Nat Prod Res. 2023 Aug 28:1-7. doi: 10.1080/14786419.2023.2251168. Online ahead of print. A comparative study on essential oils from the leaves and stems of Vietnamese Mikania micrantha Kunth. Nguyen QT(1)(2), Huynh Thi KL(2)(3), Nguyen MP(1)(2), Trinh T(1)(2), Pham NT(1)(2), Ho MN(4), Tran Thi YN(5), Tran NQ(6), Le Thi P(6). Author information: (1)Faculty of Chemistry, University of Science, Ho Chi Minh City, Vietnam. (2)Vietnam National University, Ho Chi Minh City, Vietnam. (3)School of Biotechnology, International University, Ho Chi Minh City, Vietnam. (4)Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia. (5)Institute of Technology Application and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam. (6)Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam. Mikania micrantha Kunth is widely known as potential herbal medicine, although it is an invasive alien species in Southeast Asia. In this study, the essential oils from leaves and stems of M. micrantha were extracted by hydrodistillation method, and the chemical profiles of essential oils were then analysed by gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC/MS). It was found that there were similarities and differences in chemical compositions and their percentage between the essential oils obtained from these two parts. The dominant components of leaves essential oil are β-Cubebene, Germacrene D, and α-Zingiberene, accounting for 11.34%, 10.96%, and 10.76%, respectively. Additionally, the major components of stems essential oils are D-Limonene (16.99%), β-Pinene (7.91%), and α-Zingiberene (7.26%). The research sheds fresh light on the chemical makeup of M. micrantha essential oils, emphasising their potential for the future. DOI: 10.1080/14786419.2023.2251168 PMID: 37635675 5. Chem Biodivers. 2023 Sep;20(9):e202300811. doi: 10.1002/cbdv.202300811. Epub 2023 Sep 4. Phytochemicals, Essential Oils Composition and Antioxidant Activity of Astragalus spp., Phlomis olivieri and Daphne mucronata in Habitats of Central Iran. Ghorbani L(1), Golkar P(1), Jafary R(1), Ahmadi M(1), Allafchian A(2). Author information: (1)Department of Natural Resources, Isfahan University of Technology, Isfahan, 84156-83111, Iran. (2)Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan, 84156-83111, Iran. This study evaluated several secondary metabolites, essential oils (EOs) compositions, and antioxidant activity in four medicinal plants that originated in Isfahan rangelands. The species were Astragalus verus, Astragalus adscendens, Daphne mucronata, and Phlomis olivieri. Thirty-two genotypes of these species were evaluated for different biochemical traits. Based on the evaluation of EOs compounds, GC/MS analysis revealed the total number of identified compounds. These compounds were 25, 22, 12, and 22 for A. adscendens, A. verus, D. mucronata, and P. olivieri, respectively. The dominant compounds were phthalate (59.88 %) in A. adscendens, phytol (38.02 %) in A. verus, hexanoic acid (32.05 %) in D. mucronata and β-cubebene (30.94 %) in P. olivieri. Phytochemical analysis showed that D. mucronata, A. adscendens, and P. olivieri had the highest total phenolics content (TPC) (18.24 mg gallic acid equivalent/g dry weight), total flavonoids content (5.57 mg QE/g DW), and total anthocyanins content (0.23 mg/g DW), respectively. The highest total chlorophyll (0.27 mg/g DW), total carotenoids (0.03 mg/g DW), and antioxidant activity (71.36 %) were observed in A. adscendens, A. adscendens and A. verus, respectively. Among all genotypes, the highest TPC (20.1 mg GAE/g DW) was observed in genotype 5 of D. mucronata. This study provided new information on the chemical compounds within the distribution range of these ecologically dominant rangeland species in Isfahan province, Iran. The data revealed that superior genotypes from these species are rich in natural antioxidants and bioactive compounds. Thus, they can be used in ethno pharmacological fields, food, and industrial applications. © 2023 Wiley-VHCA AG, Zurich, Switzerland. DOI: 10.1002/cbdv.202300811 PMID: 37566100 [Indexed for MEDLINE]