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Volatile Constituents of Leaves of Trifolium alexandrinum

Journal of Botanical Research 2022年第1期4卷 20-27页

作者： Faiza Faiz Azeem Intisar Ahsan Sharif Mateen Hedar Arooj Ramzan Tehzeeb Sawaira Fiaz Kausar School of Chemistry University of the PunjabLahore54590Pakistan

This study presents the volatile constituents from leaves of Trifolium alexandrinum from *** dried leaves were subjected to hydrodistillation for extraction and extracted volatile oil was subsequently characterized by gas chromatography-mass spectrometry technique.A total of 22 compounds were identified where the most dominant constituents were:phytol(46.00%),palmitic acid(9.26%),phytol acetate(6.44%),and linolenic acid(3.47%).Most of these are well-known constituents to exhibit antibacterial,antioxidant,antitumor,and anti-inflammatory activities.

关键词： Trifolium alexandrinum Berseem phytol Palmitic acid Volatile oil Bioactive properties

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Chemical constituents from Litsea monopetala

Chemical constituents from Litsea monopetala

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中国化学会第九届全国有机化学学术会议

作者： Yun-Song Wang Zheng-Qi Wen Bi-Tao Li Huang Rong Hong-Bin Zhang Jing-Hua Yang Key Laboratory of Medicinal Chemistry for Natural Resource Ministry of Education School of Chemical Science and Technology Yunnan University First Affiliated Hospital of Kunming Medical University

Plants of Litsea have been widely used as traditional medicine for thousands of *** China and other Asian country,for example,Japan,India,Korera,and Malaysia,Litsea has been used in traditional medicine for influenza,stomach aches,diarrhea,and other *** monopetala（Roxb）*** a medium-sized species,about 7-15 m high with stalked,alternate and oblong to ovate shaped *** leaves are used as a topical medicine for the treatment of arthritis[1,2].However,no systematic study has been reported regarding its phytochemistry and *** 95%Et OH extract of the whole plant of Litsea monopetala was partitioned between Et2O,n-Bu OH and water,successively,and the Et2O-soluble fraction and n-Bu OH fraction was chromatographed over silica gel and Sephadex LH-20 to yield compounds（1–6）.The structures of compounds 1-6 were elucidated as trans-phytol（1）,sitosterol（2）,sitosterol?-D-glucopyranoside（3）,catechin（4）,quercetin 3-O-β-D-glucopyranoside（5）,and quercetin-3-O-?-D-rhamnopyranoside（6）,respectively,on the basis of their MS and 1H NMR and 13C NMR *** displayed that Litsea monopetala was rich in *** is a member of the fragrance structural group Alcohols Branched Chain *** common characteristic structural elements are one hydroxyl group per molecule,a C4–C16 carbon chain with one or several methyl or ethyl side chains and up to four non-conjugated double ***’s a fragrance ingredient used in cosmetics,fine fragrances,shampoos,toilet soaps and other toiletries as well as in non-cosmetic products such as household cleaners and *** worldwide use is 0.1 to 1.0 metric tons per year[3].All these provide important information with regard to a source of the isolation of natural phytol and the industrial applications of Litsea monopetala.

关键词： Lauraceae Litsea monopetala phytol

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Intraspecific Chemical Variability of Essential Oil of Hoslundia opposita

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American Journal of Analytical Chemistry 2013年第2期4卷 77-82页

作者： Z.Félix Tonzibo A.Muriel Koffi E.Léon Wognin G.Bedi J.C.Chalchat Laboratoire de Chimie Organique Biologique UFR-SSMTUniversitéde CocodyAbidjanCote d’Ivoire Laboratoire de Chimie des Hétérocycles et Glucides UniversitéBlaise Pascale de Clermont FerrandCampus des CézeauxAubièreFrance

Chemical investigation on leaves oil of Hoslundia opposita, aromatic plant used in traditional medicine, harvested from 20 localities of C?te d’Ivoire was realized by GC and GC/MS. In total, 101 compounds were identified accounting to 92% - 99%, aromatic compounds such benzyl benzoate and sesquiterpenes namely germacrene D, β-caryophyllene and α-humulene hydroxyl were found as the major constituents. As regard, the chemical profiles of our samples, it was found a great chemical variability suggesting a high polymorphism degree. In order to study this chemical variability, the results were submitted to the principal components and cluster analysis which allowed distinguishing two main groups of essential oils with respect to sampling site. The cluster I was dominated by benzyl benzoate (15%) and thymol (7.4%) comprising 6 localities, cluster II was characterized by phytol (8.5%) and α-humulene (7%) and constituted by 14 localities.

关键词： Hoslundia Opposita Lamiaceae Essential Oil Composition Benzyl Benzoate phytol

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Chemical Composition,Cytotoxic and Anti-arthritic Activities of Hexane Extracts of Certain Schinus Species

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Journal of Pharmacy and Pharmacology 2021年第11期9卷 378-386页

作者： Heba A.S.El-Nashar Nada M.Mostafa Omayma A.Eldahshan Abdel Nasser B.Singab Department of Pharmacognosy Faculty of PharmacyAin Shams UniversityAbbassiaCairoEgypt Center for Drug Discovery Research and Development Faculty of PharmacyAin Shams UniversityCairoEgypt

The genus Schinus(Anacardiaceae)comprises about 29 species that are utilized in both traditional and current medicine to alleviate various disorders such as rheumatism,bronchial infections,stomach upset,menstrual disturbance,bronchitis,and *** this study we aimed to investigate the chemical composition of hexane extracts obtained from Schinus polygamous and Schinus terebinthifolius leaves as well as their cytotoxic and anti-arthritic *** GC-MS analysis of *** leaves revealed identification of fifty-five components:being betulin(6.54%),phytol acetate(5.27%),lupeol(3.96%),palmitic acid methyl ester(3.58%)and heptacosane(3.25%).While,seventeen compounds were identified in *** leaves,predominately characterized by phytol(14.70%),lupeol(13.33%),linolenic acid methyl ester(11.17%),palmitic acid methyl ester(7.74%),and 28-oxours-12-en-3-yl acetate(7.44%).Both extracts showed moderate cytotoxic activities against hepatocellular carcinoma cells with IC_(50) values of 102.65 and 65.55μg/mL,*** colorectal carcinoma cell line presented IC_(50) values of 217.78 and 83.55μg/mL,***,both extracts provided moderate anti-arthritic effects(IC_(50):80.12 and 63.09μg/mL,respectively)using protein denaturation test,compared to diclofenac sodium(IC_(50)=15.12μg/mL).

关键词： Schinus polygamous Schinus terebinthifolius Betulin phytol Cytotoxic Anti-arthritic

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