scholarly journals Chemical constituents of the stem barks of Swintonia floribunda Griff. (Anacardiaceae)

2019 ◽  
Vol 2 (1) ◽  
pp. 71-75
Author(s):  
Dang Hoang Phu ◽  
Nguyen Xuan Hai ◽  
Le Huu Tho ◽  
Do Van Nhat Truong ◽  
Nguyen Trung Nhan ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Biological Activities ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Antimicrobial Activities ◽  
Published Data ◽  
Soluble Extract ◽  
Pancreatic Cancers ◽  
2D Nmr Spectra ◽  
Antioxidant And Antimicrobial Activities

Swintonia floribunda Griff. is an evergreen tree that belongs to Anacardiaceae family, which grows at Tay Nguyen, Lam Dong, and Dong Nai Provinces in Vietnam. Swintonia floribunda showed many interesting biological activities such as antitumor effect against breast and pancreatic cancers, antioxidant, and antimicrobial activities. From the stem barks of Swintonia floribunda Griff. (Anacardiaceae) collected in Dong Nai province, three epoxylignans: pinoresinol (1), syringaresinol (2), epipinoresinol (3), together with three other compounds: n-heptacosyl trans-ferulate (4), methyl orsellinate (5), and friedelin (6) have been isolated from the EtOAc-soluble extract. The chemical structure of these compounds were determined by 1D and 2D NMR spectra and comparison with published data. These compounds were first reported in Swintonia floribunda

scholarly journals Chemical constituents from the ethyl acetate and n-butanol extracts of the stems of Buchanania lucida Blume (Anacardiaceae)

2018 ◽  
Vol 1 (T5) ◽  
pp. 167-171
Author(s):  
Tung Thanh Nguyen ◽  
Thuong Thi Nguyen ◽  
Phu Hoang Dang ◽  
Trong Nguyen Huu Phan ◽  
Nhan Trung Nguyen
Keyword(s):  
Phenolic Compounds ◽  
Methyl Ester ◽  
Ethyl Acetate ◽  
Nmr Spectra ◽  
Chemical Structure ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Published Data ◽  
2D Nmr Spectra ◽  
Aloe Emodin

There is no research on the chemical constituents investigation and bioactivity evaluation of Buchanania lucida Blume (Anacardiaceae). From the stems of Buchanania lucida collected at Dong Nai province, the ethyl acetate and n-butanol extracts were prepared. Four phenolic compounds: protocatechuic methyl ester (1), aloe-emodin (2), naringenin (3), and glucosyringic acid (4) were isolated from these extracts. The chemical structure of these compounds were elucidated by 1D and 2D NMR spectra and comparison with published data. These compounds were first reported in Buchanania lucida.

scholarly journals Chemical constituents of the whole plant of PHLOGACANTHUS TURGIDUS (FUA EX HOOK.F.) LINDAU

2021 ◽  
Vol 5 (3) ◽  
pp. first
Author(s):  
Nguyen Tan Phat ◽  
Mai Thanh Chi ◽  
Phan Nhat Minh ◽  
Dang Chi Hien ◽  
Mai Dinh Tri
Keyword(s):  
Biological Activities ◽  
Chemical Constituents ◽  
Ethanolic Extract ◽  
2D Nmr ◽  
Published Data ◽  
Cytotoxic Activities ◽  
Phenylethanoid Glycosides ◽  
Whole Plant ◽  
The Family ◽  
First Time

The genus Phlogacanthus belongs to the family Acanthaceae and consists of more than 49 species, These species are widespread in tropical and subtropical zones such as Bangladesh, Bhutan, China, Indonesia, India, Myanmar and Vietnam. In Vietnam, the genus contains about 06 species. The extracts from some species in this genus have been evaluated for biological activities as analgesic, antiinflammatory, antimicrobial, antioxidant, antihyperglycemic and cytotoxic activities. In this study, the whole plant of Phlogacanthus turgidus was collected, dried, cut into small species, and extracted with ethanol to yield the ethanolic extract. Isolation of chemical constituents was performed using column chromatography on silica gel; their structures were elucidated by HRESI-MS, 1D & 2D-NMR and compared with published data. Six compounds, including two nor-isoprenoids: (+)-dehydrovomifoliol (1), (3S,5R,6R,7E,9S)-megastiman-7-ene-3,5,6,9-tetrol (2), two steroids b - sitosterol (3), daucosterol (4), one lignan (+)-syringaresinol (5), a derivative of phenylethanoid glycosides: martynoside (6) were isolated from the ethyl acetate extract of the whole plant of P. turgidus. Among them, 1, 2 were reported for the first time from the genus Phlogacanthus, while 3, 4, 5, 6, were found for the first time from this species.

scholarly journals A Further Comprehensive Review on the Phytoconstituents from the Genus Erythrina

2020 ◽  
Vol 23 (1) ◽  
pp. 65-77 ◽  
Author(s):  
Mohammad Musarraf Hussain
Keyword(s):  
Chemical Structure ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Pharmaceutical Journal ◽  
Significant Source ◽  
Comprehensive Review ◽  
Chemical Structures ◽  
Previous Review

Erythrina is a significant source of phytoconstituents. The aim of this review is to solicitude of classification, synthesis, and phytochemicals with biological activities of Erythrina. In our previous review on this genus (Hussain et. al., 2016a) fifteen species (Erythrina addisoniae, E. caribeae, E. indica, E. lattisima, E. melanacantha, E. mildbraedii, E. poeppigiama, E. stricta, E. subumbrans, E. veriagata, E. vespertilio, E. velutina, E. zeberi, E. zeyheri and E. americana) have been studied and 155 molecules with chemical structures were reported. A further comprehensive review was done upon continuation on the same genus and thirteen species (E. abyssinica, E. arborescens, E. berteroana, E. burttii, E. caffra, E. coralloids, E. crista-galli, E. fusca, E. herbaceae, E. lysistemon, E. mulungu, E. speciosa and E. tahitensis) of Erythrina have been studied and 127 compounds are reported as phytoconstituents with their chemical structure in this review. Erythrina crista-galli and E. lysistemon consist of highest number of chemical constituents. Bangladesh Pharmaceutical Journal 23(1): 65-77, 2020

scholarly journals Chemical Composition and Antioxidant and Antimicrobial Activities of Wormwood (Artemisia absinthiumL.) Essential Oils and Phenolics

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Kamel Msaada ◽  
Nidhal Salem ◽  
Olfa Bachrouch ◽  
Slim Bousselmi ◽  
Sonia Tammar ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Methanolic Extract ◽  
Biological Activities ◽  
Reducing Power ◽  
Antimicrobial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Antioxidant And Antimicrobial Activities

The aim of this study was to determine the chemical variability of wormwood extracts as affected by the growing region. Antioxidant and antimicrobial activities were also investigated. The essential oil composition variability ofA. absinthiumL. aerial parts collected from four different Tunisian regions was assessed by gas chromatography (GC/FID) and by gas chromatography mass spectrometry (GC/MS). In addition, total polyphenols, flavonoids, and condensed tannins as well as antioxidant, antibacterial, and antifungal activities of methanolic extract and essential oils were undertaken. Chromatographic analysis of wormwood essential oils showed the predominance of monoterpene hydrocarbons represented mainly by chamazulene. RP-HPLC analysis of wormwood methanolic extract revealed the predominance of phenolic acids. Antiradical activity was region-dependant and the methanolic extract of Bou Salem region has the strongest activity (CI50=9.38±0.82 µg/mL). Concerning the reducing power, the methanolic extract of Bou Salem, Jérissa, and Boukornine regions was more active than the positive control. Obtained results of antimicrobial activities showed that wormwood essential oil is endowed with important antibacterial activity which was strongly related to the organoleptic quality of oil which appeared strongly region-dependant.A. absinthiumL. EOs investigated are quite interesting from a pharmaceutical standpoint because of their biological activities.

Chemical Constituents and Biological Activities of Cordia Myxa L.: A Review

2021 ◽  
Vol 11 ◽  
Author(s):  
Varinder Singh ◽  
Ankita Sood ◽  
Simran Pruthi ◽  
Manjinder Singh ◽  
Balraj Saini ◽  
...  
Keyword(s):  
Biological Activities ◽  
Chemical Constituents ◽  
Antimicrobial Activities ◽  
Functional Health ◽  
Future Research ◽  
Health Food ◽  
Toxicological Evaluation ◽  
Cordia Myxa ◽  
Chronic Fever ◽  
Tract Infections

Background: Cordia myxa L. (CM) is a valuable ethnomedicinal plant from Boraginaceae family. Traditionally, CM parts especially fruits and leaves are used in chest and urinary tract infections, diarrhoea, dysentery, tuberculosis, liver and spleen disorders, chronic fever, malaria etc. Objective: Despite of known importance and uses, CM has gained relatively less attention of researchers and concise reviews revealing the medicinal potential of CM are scanty. The present review summarizes the chemical constituents and biological activities of CM and aims to stimulate future research to develop it as a functional health food. Results: Analysis of literature on CM showed that its fruits are a rich source of nutrients and are frequently employed in wide ailments such as urinary and respiratory tract infections, chronic fever, liver disorders, asthma, used as anthelmintic, diuretic, expectorant and purgative. Scientific studies have shown the antidiabetic, analgesic, anti-inflammatory, anti-cancer, antioxidant, antiplasmodial, hepatoprotective, hypotensive, antiulcer and antimicrobial activities of CM. More than 45 compounds belonging to carbohydrates, steroids, carotenoids, phenols, flavonoids and alkaloids have been reported from various parts of CM. Conclusion: Systematic preclinical studies support the traditional claims of CM. The analysis of available literature showed that CM could be developed as a drug. Further, studies such as detailed pharmacological and toxicological evaluation, isolation of bioactive compounds, quantitative phytochemistry and structure activity relationship are scanty and thus, crucial to be addressed for uplifting the scientific value of this revered medicinal plant.

scholarly journals New Antimalarial and Antimicrobial Tryptamine Derivatives from the Marine Sponge Fascaplysinopsis reticulata

Marine Drugs ◽  
2019 ◽  
Vol 17 (3) ◽  
pp. 167 ◽  
Author(s):  
Pierre-Eric Campos ◽  
Emmanuel Pichon ◽  
Céline Moriou ◽  
Patricia Clerc ◽  
Rozenn Trépos ◽  
...  
Keyword(s):  
Plasmodium Falciparum ◽  
Minimum Inhibitory Concentration ◽  
Marine Sponge ◽  
Nmr Spectra ◽  
Inhibitory Concentration ◽  
Chemical Study ◽  
2D Nmr ◽  
Antimicrobial Activities ◽  
2D Nmr Spectra ◽  
Ic50 Values

Chemical study of the CH2Cl2-MeOH (1:1) extract of the sponge Fascaplysinopsis reticulata collected in Mayotte highlighted three new tryptophan derived alkaloids, 6,6′-bis-(debromo)-gelliusine F (1), 6-bromo-8,1′-dihydro-isoplysin A (2) and 5,6-dibromo-8,1′-dihydro-isoplysin A (3), along with the synthetically known 8-oxo-tryptamine (4) and the three known molecules from the same family, tryptamine (5), (E)-6-bromo-2′-demethyl-3′-N-methylaplysinopsin (6) and (Z)-6-bromo-2′-demethyl-3′-N-methylaplysinopsin (7). Their structures were elucidated by 1D and 2D NMR spectra and HRESIMS data. All compounds were evaluated for their antimicrobial and their antiplasmodial activities. Regarding antimicrobial activities, the best compounds are (2) and (3), with minimum inhibitory concentration (MIC) of 0.01 and 1 µg/mL, respectively, towards Vibrio natrigens, and (5), with MIC values of 1 µg/mL towards Vibrio carchariae. In addition the known 8-oxo-tryptamine (4) and the mixture of the (E)-6-bromo-2′-demethyl-3′-N-methylaplysinopsin (6) and (Z)-6-bromo-2′-demethyl-3′-N-methylaplysinopsin (7) showed moderate antiplasmodial activity against Plasmodium falciparum with IC50 values of 8.8 and 8.0 µg/mL, respectively.

scholarly journals Chemical constituents of Chaenomeles sinensis twigs and their biological activity

2020 ◽  
Vol 16 ◽  
pp. 3078-3085
Author(s):  
Joon Min Cha ◽  
Dong Hyun Kim ◽  
Lalita Subedi ◽  
Zahra Khan ◽  
Sang Un Choi ◽  
...  
Keyword(s):  
Biological Activity ◽  
Data Analysis ◽  
Cell Lines ◽  
Chemical Structure ◽  
Biological Effects ◽  
Chemical Constituents ◽  
2D Nmr ◽  
Nmr Data ◽  
Chaenomeles Sinensis ◽  
Modified Mosher’S Method

A new megastigmane-type norsesquiterpenoid glycoside, chaemeloside (1), was isolated from the twigs of Chaenomeles sinensis together with 11 known phytochemicals through chromatographic methods. The chemical structure of the new isolate 1 was determined by conventional 1D and 2D NMR data analysis, ECD experiment, hydrolysis followed by a modified Mosher’s method, and LC–MS analysis. The characterized compounds’ biological effects including cytotoxicity against cancer cell lines, antineuroinflammatory activity, and potential neurotrophic effect were evaluated.

Pentacyclic Triterpenes and Other Constituents from Ficus cordata (Moraceae)

2008 ◽  
Vol 63 (11) ◽  
pp. 1335-1338 ◽  
Author(s):  
Herve M. P. Poumale ◽  
Rodrigue T. Kengap ◽  
Jean Claude Tchouankeu ◽  
Felix Keumedjio ◽  
Hartmut Laatsch ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Secondary Metabolites ◽  
Betulinic Acid ◽  
Nmr Spectra ◽  
2D Nmr ◽  
Stem Bark ◽  
Published Data ◽  
Pentacyclic Triterpenes ◽  
2D Nmr Spectra ◽  
Lupeol Acetate

Abstract Two new pentacyclic triterpenes 8,26-cyclo-urs-21-en-3β, 20β-diol (1) and 3β-acetoxy-8.26- cyclo-ursan-20β-ol (2) together with 3-friedelanone, oleanolic acid, betulinic acid, lupeol acetate, α- and β-amyrine, S.SJ^'-tetrahydroxyflavane, and 3,5,7,3',4'-pentahydroxyflavane were isolated from the stem bark of Ficus cordata (Moraceae). The structures of these secondary metabolites were established using ID and 2D NMR spectra and by comparison with published data or with authentic samples. Compounds 1 and 2 exhibited weak antibacterial and no antifungal activity.

scholarly journals Studies on Chemical Constituents and Biological Activities of an Endophytic Fungi from Magnifera indica L.

2015 ◽  
Vol 13 (1) ◽  
pp. 63-67
Author(s):  
Mozammel Haque ◽  
Mohammad Shoeb ◽  
Nilufar Nahar
Keyword(s):  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Radical Scavenging ◽  
Acid Methyl Ester ◽  
Diffusion Method ◽  
Published Data ◽  
Nmr Studies ◽  
Brine Shrimp Lethality Assay

Two compounds, ergosterol (1) and 4-hydroxy-hexadec-6-enoic acid methyl ester (2) were isolated from the ethyl acetate extract of the endophytic fungal strain labeled as MI-3, isolated from the leave of Magnifera indica L. The structures of the isolated compounds were elucidated by 1H NMR studies and comparing with published data. The crude ethyl acetate extract, three column fractions and ergosterol were tested for antimicrobial activity against five Gram-positive and eight Gram-negative bacteria and three fungi by disc diffusion method. The general toxicity and antioxidant activity of the parent extract, column fractions and ergosterol were also evaluated by using brine shrimp lethality assay and free radical scavenging assay, respectively. Low activities were observed in all cases. DOI: http://dx.doi.org/10.3329/dujps.v13i1.21862 Dhaka Univ. J. Pharm. Sci. 13(1): 63-67, 2014 (June)

scholarly journals Phytochemical characterization, and antioxidant and antimicrobial activities of white cabbage extract on the quality and shelf life of raw beef during refrigerated storage

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41430-41442
Author(s):  
Momna Rubab ◽  
Ramachandran Chelliah ◽  
Kandasamy Saravanakumar ◽  
Jong-Rae Kim ◽  
Daesang Yoo ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Biological Activities ◽  
Wide Spectrum ◽  
Antimicrobial Activities ◽  
Refrigerated Storage ◽  
White Cabbage ◽  
Brassica Vegetables ◽  
Cabbage Extract ◽  
Antioxidant And Antimicrobial Activities ◽  
Quality And Shelf Life

Brassica vegetables are well-characterized, containing a wide-spectrum of phenolic compounds that are responsible for their diverse biological activities like antioxidant and antimicrobial activities.

Sign in / Sign up

Export Citation Format

Share Document