scholarly journals 4-Hydroxy-trans-cinnamate Derivatives and Triterpene from Barleria cristata

2014 ◽  
Vol 12 (2) ◽  
pp. 143-145 ◽  
Author(s):  
Nipa Chowdhury ◽  
Abdullah Al Hasan ◽  
Fakir Shahidullah Tareq ◽  
Monira Ahsan ◽  
ATM Zafrul Azam
Keyword(s):  
Medicinal Plant ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Spectroscopic Methods ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Organic Extracts ◽  
Whole Plants ◽  
Important Medicinal Plant

Barleria cristata is an important medicinal plant of Bangladesh. Many compounds of diverse biological activities were isolated from different Barleria species, including irridoids, flavonoids and phenylethanoid derivatives in addition to other groups of chemical constituents. This paper presents the chemical investigation of the whole plants of B.cristata. Classic phytochemical investigation of organic extracts of the whole plants of B. cristata together with spectroscopic methods led to the isolation and characterization of 4-hydroxy-trans-cinnamate derivatives (1-3) and a triterpene, namely oleanolic acid (4). Dhaka Univ. J. Pharm. Sci. 12(2): 143-145, 2013 (December) DOI: http://dx.doi.org/10.3329/dujps.v12i2.17623

scholarly journals Triterpenoids Isolated from Stem Bark of Glochidion lanceolarium (Roxb.), Voigt

2021 ◽  
Vol 18 (1) ◽  
pp. 13-18
Author(s):  
Selina Kabir ◽  
Mohammad Rashedul Haque ◽  
Abdullah Mohammad Sarwaruddin Chowdhury ◽  
Mohammad Abdur Rashid ◽  
Choudhury Mahmood Hasan
Keyword(s):  
Stem Bark ◽  
Chemical Investigation ◽  
Spectroscopic Methods ◽  
Aerial Parts ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
Organic Extracts

This paper presents the chemical investigation of the stem barks of Glochidion lanceolarium (Roxb.) Voigt, Euphorbiaceae. Classic phytochemical investigation of organic extracts of the aerial parts of Glochidion lanceolarium together with spectroscopic methods led to the isolation and characterization of three triterpenes, namely Epilupeol (1) Glochidonol (2), Glochidone (3). Journal of Science Foundation, January 2020;18(1):13-18

A review on phyto-pharmacology of Oxalis corniculata

2021 ◽  
Vol 24 ◽  
Author(s):  
Iqra Sarfraz ◽  
Azhar Rasul ◽  
Ghulam Hussain ◽  
Muhammad Ajmal Shah ◽  
Bushra Nageen ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Current Effort ◽  
Isolation And Characterization ◽  
Anti Cancer ◽  
Anti Oxidant ◽  
Anti Fungal ◽  
Warm Temperate

: Oxalis corniculata (Oxalidaceae) is a small decumbent and delicate appearing medicinal herb flourishing in warm temperate and tropical domains such as Pakistan and India. Main bioactive chemical constituents of Oxalis plant include several alkaloids, flavonoids, terpenoids, cardiac glycosides, saponins, phlobatannins along with steroids. Due to its polyphenolic, glycosides and flavonoid profile, it is proved to be protective in numerous ailments and exhibit various biological activities such as anti-fungal, anti-cancer, anti-oxidant, anti-bacterial, anti-diabetic, and cardioprotective. Moreover, bioactive phytochemicals from this plant possess significant wound healing potential. Our current effort intends to emphasize on the immense significance of this plant species, which have not been the subject matter of clinical trials and effective pharmacological studies, even though its favored usage has been stated. This review proposes that Oxalis corniculata possess potential for the cure of various diseases, however, further researches on isolation and characterization of bioactive compounds along with pre-clinical trials are compulsory to figure out its pharmacological applications.

Chemical constituents of two Ecuadorian medicinal plants, Tagetes terniflora Kunth and Croton rivinifolius Kunth

2021 ◽  
Author(s):  
Alírica I Suárez ◽  
Vladimir Morocho ◽  
Vladimir Luna ◽  
Katty Castillo ◽  
Chabaco Armijos
Keyword(s):  
Medicinal Plants ◽  
Spectroscopic Analysis ◽  
Chemical Constituents ◽  
Two Dimensional ◽  
Phytochemical Study ◽  
Isolation And Characterization ◽  
Organic Extracts ◽  
Medicinal Properties ◽  
Nmr Methods

Phytochemical study of two medicinal plants from Ecuador, Tagetes terniflora Kunth, and Croton rivinifolius Kunth, led to the isolation and characterization of the major constituents present in the organic extracts obtained from these plants: 5-(4-acetoxy-1-butynil)-2,2’-bi-thiophene (1), 5-methyl-2,2’:5’,2”- terthiophene (2), patuletin (3) from Tagetes terniflora, and isocorydine (4), sweroside (5), tiliroside (6) from Croton rivinifolius. The structures of these compounds were established by spectroscopic analysis including two-dimensional NMR methods, MS, and comparison with published spectral data. They are recognized as secondary metabolites that represent the chemotaxonomy of Tagetes and Croton genera and could be responsible for the recognized medicinal properties attributed to these species. This paper deals with the first report that shows the presence of these compounds in these plants.

scholarly journals Chemical constituents of leaves Dialium cochinchinense Pierre

2021 ◽  
Vol 4 (3) ◽  
pp. 1131-1136
Author(s):  
Vu Thi Huyen ◽  
Doan Thi Thuy Ai ◽  
Nguyen Thi Hien
Keyword(s):  
Secondary Metabolites ◽  
Nmr Spectra ◽  
Spectroscopic Analysis ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Antimicrobial Activities ◽  
Tropical Regions ◽  
First Report ◽  
Isolation And Characterization

The genus Dialium belongs to the Caesalpinioideae family, consisting of approximately 30 species distributed in the tropical regions. Secondary metabolites from the  Dialium genus have been reported to exhibit various biological activities including antioxidant, cytotoxicity and antimicrobial activities. This work describes the isolation and characterization of five compounds from the leaves of Dialium cochinchinense Pierre. Their structures were established by spectroscopic analysis, including MS and NMR spectra. Accordingly, the isolated compounds were identified to be lupeone (1), b-sitostenone (2), β-sitosterol (3), daucosterol (4), and dihydrokaempferide (5). To the best of our knowledge, this is the first report of the isolation of compounds 1 and 5 from the genus Dialium.

The Chemical Constituents and Bioactivities of Psoralea corylifolia Linn.: A Review

2016 ◽  
Vol 44 (01) ◽  
pp. 35-60 ◽  
Author(s):  
Xuenong Zhang ◽  
Wenwen Zhao ◽  
Ying Wang ◽  
Jinjian Lu ◽  
Xiuping Chen
Keyword(s):  
Medicinal Plant ◽  
Skin Diseases ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Psoralea Corylifolia ◽  
Active Components ◽  
Anti Oxidant ◽  
Main Components ◽  
Phytochemical Studies ◽  
Important Medicinal Plant

Psoralea corylifolia Linn. (P. corylifolia) is an important medicinal plant with thousands of years of clinical application. It has been widely used in many traditional Chinese medicine formulas for the treatment of various diseases such as leucoderma and other skin diseases, cardiovascular diseases, nephritis, osteoporosis, and cancer. Phytochemical studies indicated that coumarins, flavonoids, and meroterpenes are the main components of P. corylifolia, and most of these components are present in the seeds or fruits. The extracts and active components of P. corylifolia demonstrated multiple biological activities, including estrogenic, antitumor, anti-oxidant, antimicrobial, antidepressant, anti-inflammatory, osteoblastic, and hepatoprotective activities. This paper systematically summarized literatures on the chemical constituents and biological activities of P. corylifolia, which provided useful information for the further research and development toward this potent medicinal plant.

scholarly journals ISOLATION AND CHARACTERIZATION OF β-SITOSTEROL FROM ELAEAGNUS ANGUSTIFOLIA CULTIVATED IN IRAQ

2018 ◽  
Vol 11 (11) ◽  
pp. 442 ◽  
Author(s):  
Rand A Zeez ◽  
Ibrahim S Abaas ◽  
Enas J Kadhim
Keyword(s):  
Chemical Constituents ◽  
Elaeagnus Angustifolia ◽  
Crystalline Powder ◽  
Isolation And Purification ◽  
Spectral Identification ◽  
Isolation And Characterization ◽  
Phytochemical Investigation ◽  
1H Nuclear Magnetic Resonance ◽  
Layer Chromatography

Objective: The aim of our study was to investigate chemical constituents of leaves and seeds of Elaeagnus angustifolia since no phytochemical investigation had been done previously in Iraq.Methods: Phytochemical screening of the extracts obtained from the leaves of E. angustifolia indicated the presence of flavonoids (type of flavonols), saponins, alkaloids, steroids, and terpenoids. Thin-layer chromatography fingerprinting and the spraying reagent (concentrated H2SO4 and vanillin in ethanol) were used to identify the hexane extract containing phytosterols.Results: The different chromatographic and spectroscopic results revealed the presence of β‐sitosterol isolated from E. angustifolia. Conclusion: The isolation and purification afforded white crystalline powder which was subjected to chemical and spectral identification by infrared and 1H-nuclear magnetic resonance. The compound was identified as β‐sitosterol.

Extraction, isolation and characterization of Bauhinia variegata flower

2020 ◽  
pp. 9-12
Author(s):  
Akanksha Gupta ◽  
Abhishek K Tripathi ◽  
Pushpraj S Gupta
Keyword(s):  
Biological Activities ◽  
Molecular Formula ◽  
Native Plant ◽  
Compound A ◽  
Active Constituents ◽  
Chromatographic Techniques ◽  
Isolation And Characterization ◽  
Soxhlet Apparatus ◽  
Bauhinia Variegata

Background: Bauhinia variegata Linn. is a native plant of Asia and China. B. variegata is found in tropical regions of the world. It belongs to family Leguminosae. It is used for diarrhea, hemorrhoids, constipation, piles, edema, leprosy, wounds, tumors, etc.  Objective: The objective of the present study was to perform extraction of B. variegata flower and isolation of active constituents from the extract. Materials and Methods: The ethanolic extraction of B. variegata flower was performed using the Soxhlet apparatus. The isolation of active constituents from the extract was performed using chromatographic techniques. In column chromatographic studies, n-hexane- [dichloromethane (DCM)] (2:8) was used as an eluting system and further purified through thin layer chromatography (TLC). Compound A and B were isolated through chromatographic techniques, then the molecular formula and characterization of these compounds were carried out with mass and infrared (IR) spectral analysis. Results and Discussion: The percentage yield of B. variegata ethanolic extract (BVE) was found to be 20.8% w/w. The different fractions were F1 having 12.5 grams with n-hexane, F2 (17.1 grams) with CH2Cl2, F3 (21.2 grams) with EtOAc, and F4 (13.4 grams) with EtOH. Compound A and B were isolated from the solvent fractions of n-hexane-DCM (2:8) and EtOAc-DCM (1:9), respectively. The compound A was characterized as 3-hydroxy-6-methoxy-2-phenyl-4H-chromen-4-one. The compound B was characterized as 3-hydroxy-6-methyl-2-phenyl-4H-chromen-4-one. Conclusion: Thus, B. variegata flowers possess active components that need to identify their biological activities.

Isolation and HPLC Determination of the Chemical Components of Gentianella acuta (Michx.) Hulten

2018 ◽  
Vol 15 (1) ◽  
pp. 21-33
Author(s):  
Ying Wei ◽  
Yongqiao Liu ◽  
Yifan Hele ◽  
Weiwei Sun ◽  
Yang Wang ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
High Speed ◽  
Chemical Constituents ◽  
Folk Medicine ◽  
Gradient Elution ◽  
Chemical Components ◽  
Isolation And Characterization ◽  
Major Chemical ◽  
Main Components ◽  
First Time

Background: Gentianella acuta (Michx.) Hulten is an important type of medicinal plant found in several Chinese provinces. It has been widely used in folk medicine to treat various illnesses. However, there is not enough detailed information about the chemical constituents of this plant or methods for their content determination. Objective: The focus of this work is the isolation and characterization of the major chemical constituents of Gentianella acuta, and developing an analytical method for their determination. Methods: The components of Gentianella acuta were isolated using (1) ethanol extraction and adsorption on macroporous resin. (2) and ethyl acetate extraction and high speed countercurrent chromatography. A HPLC-DAD method was developed using a C18 column and water-acetonitrile as the mobile phase. Based on compound polarities, both isocratic and gradient elution methods were developed. Results: A total of 29 compounds were isolated from this plant, of which 17 compounds were isolated from this genus for the first time. The main components in this plant were found to be xanthones. The HPLC-DAD method was developed and validated for their determination, and found to show good sensitivity and reliability. Conclusion: The results of this work add to the limited body of work available on this important medicinal plant. The findings will be useful for further investigation and development of Gentianella acuta for its valuable medicinal properties.

scholarly journals Isolation and characterization of aristolactam alkaloids from the stem bark of Goniothalamus velutinus (Airy Shaw) and their biological activities

2018 ◽  
Vol 30 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Erum Iqbal ◽  
Linda B.L. Lim ◽  
Kamariah Abu Salim ◽  
Shaheen Faizi ◽  
Ayaz Ahmed ◽  
...  
Keyword(s):  
Biological Activities ◽  
Stem Bark ◽  
Isolation And Characterization
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