scholarly journals Chemical Studies on the Ocean-LXIV. Chemical Studies of the Shallow-water Deposits-17. On the Chemical Constituents of the Shallow-water Deposits along the Sea-coasts of Miyagi, Fukushima and Ibaraki Prefectures

1956 ◽  
Vol 12 (3) ◽  
pp. 89-92 ◽  
Author(s):  
Shunzo UEDA
Keyword(s):  
Shallow Water ◽  
Chemical Constituents ◽  
Chemical Studies

scholarly journals Ethnomedical uses, chemical constituents, and evidence-based pharmacological properties of Chenopodium ambrosioides L.: extensive overview

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Félicien Mushagalusa Kasali ◽  
Jonans Tusiimire ◽  
Justin Ntokamunda Kadima ◽  
Amon Ganafa Agaba
Keyword(s):  
Large Scale ◽  
Chemical Constituents ◽  
Main Body ◽  
Pharmacological Properties ◽  
Chenopodium Ambrosioides ◽  
Traditional Medicines ◽  
Plant Parts ◽  
Chemical Studies ◽  
Ethnomedicinal Uses ◽  
Significant Health

Abstract Background The Chenopodium genus is a plant family widely spread worldwide that includes various plant species reputed to possess several medicinal virtues in folk medicines. Chenopodium ambrosioides L. is among the most used plants in traditional medicines worldwide. This review aimed to highlight ethnomedicinal uses, phytochemical status, and pharmacological properties of C. ambrosioides L. Main body of the abstract The analysis of relevant data highlights various ethnomedicinal uses against human and veterinary diseases in forty countries. Most indications consisted of gastrointestinal tract dysfunctioning troubles and worms parasitemia. Around 330 chemical compounds have been identified in different plant parts, especially in its essential oil fractions (59.84%). However, only a few compounds—mainly monoterpenes and glycosides—have been isolated and characterized. Experimental pharmacological studies validated a large scale of significant health benefits. It appeared that many monoterpenes are antioxidant, insecticidal, trypanocidal, analgesic, antifungal, anti-inflammatory, anti-arthritic, acaricidal, amoebicidal, anthelmintic, anticancer, antibacterial, antidiabetic, antidiarrheal, antifertility, antifungal, anti-leishmanial, antimalarial, antipyretic, antisickling, antischistosomal, antiulcer, anxiolytic, immunomodulatory, molluscicidal, and vasorelaxant agents. Short conclusion Thus, the Chenopodium ambrosioides species necessitates further chemical studies to isolate and characterize new bioactive secondary metabolites and pharmacological investigations to precise the mechanisms of action before clinical trials.

scholarly journals Chemical Studies of Cremanthodium (Asteraceae) Species; Sesquiterpenoids and Related Compounds

2019 ◽  
Vol 14 (9) ◽  
pp. 1934578X1987859
Author(s):  
Motoo Tori ◽  
Yoshinori Saito ◽  
Xun Gong ◽  
Chiaki Kuroda
Keyword(s):  
Chemical Constituents ◽  
Chemical Studies ◽  
Related Compounds

Chemical constituents of Cremanthodium angustifolium, C. brunneopilosum, C. campanulatum, C. daochengense, C. discoideum, C. ellisii, C. helianthus, C. lineare, C. nobile, C. potaninii, C. principis, C. pulchrum, C. rhodocephalum, C. stenactinium, C. pleurocaule, and C. stenoglossum were reviewed. They produced mainly sesquiterpenoids–bicyclic and/or tricyclic eremophilanes, bisabolanes, bakkanes–and related compounds. Cremanthodium was shown to be close to Ligularia in chemical constituents.

scholarly journals Mass Spectroscopic Analysis, MNDO Quantum Chemical Studies and Antifungal Activity of Essential and Recovered Oil Constituents of Lemon-Scented Gum against Three Common Molds

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 275 ◽  
Author(s):  
Said I. Behiry ◽  
Ramadan A. Nasser ◽  
Mamoun S.M. Abd El-Kareem ◽  
Hayssam M. Ali ◽  
Mohamed Z.M. Salem
Keyword(s):  
Chemical Constituents ◽  
Fusarium Culmorum ◽  
Heat Of Formation ◽  
Electronic Energy ◽  
Empirical Method ◽  
Control Treatment ◽  
Melia Azedarach ◽  
Chemical Studies ◽  
Main Components ◽  
Corymbia Citriodora

The present study described the possibility of using wood-treated oil-fungicide of lemon-scented gum (Corymbia citriodora) from newly emerged leaves and unripened fruits against the infestation of Fusarium culmorum, Rhizoctonia solani and Penicillium chrysogenum. Air-dried wood samples of Melia azedarach were treated with the extracted oils from leaves and unripened fruits from C. citriodora. The main chemical constituents identified in the essential oil (EO) from leaves were citronellal (55.31%), citronellol (21.03%) and isopulegol (10.79%), while in unripened fruits were α-pinene (17.86%), eudesmol (13.9%), limonene (9.19%), γ-terpinen (8.21%), and guaiol (7.88%). For recovered oils (ROs), the major components from leaves were D-limonene (70.23%), γ-terpinene (13.58%), β-pinene (2.40%) and isopregol (2.23%), while, 4-terpineol (21.35%), cis-β-terpineol, (19.33%), D-limonene (14.75%), and γ-terpinene (7.42%) represented the main components in fruits. EOs from leaves and fruits at the amounts of 100, 50 and 25 µL showed the highest inhibition percentage (IP) of 100% against F. culmorum and P. chrysogenum compared to control treatment, while at the amounts of 100, and 50 µL showed 100% IP of R. solani. Wood treated with ROs from leaves and fruits showed IPs of 96.66% and 93.33%, respectively, against the growth of R. solani. The mass spectra of the main components of C. citriodora leaves and fruits’ EOs have been recorded in electron ionization mode at 70 eV and fragmentation has been reported and discussed. On the other hand, different quantum parameters such as the heat of formation, ionization energy total energy, binding energy, electronic energy and dipole moment using the modified neglect of diatomic overlap (MNDO) semi-empirical method have been calculated.

Chemical Constituents of Luculia pinceana in Vietnam and Evaluation of their Biological Activity

2020 ◽  
Vol 10 (2) ◽  
pp. 163-167
Author(s):  
Phan Minh Giang ◽  
Le Thi Huyen ◽  
Nguyen Van Dau ◽  
Duong Hong Anh ◽  
Pham Hung Viet
Keyword(s):  
Human Cancer ◽  
Chemical Constituents ◽  
Radical Scavenging ◽  
Cancer Cell Line ◽  
2D Nmr ◽  
Chemical Studies ◽  
Weak Activity ◽  
Dpph Scavenging ◽  
Dpph Scavenging Assay ◽  
First Time

Background: In the flora of China and Vietnam, Luculia pinceana Hook of the family Rubiaceae is described as a medicinal plant. Prior chemical studies of L. pinceana in China isolated iridois, glycosides of cincholic acid, and kaempferol glycosides from the stem, however, have not been conducted with L. pinceana in Vietnam. Methods: The stem of L. pinceana was extracted with a mixture of 90%EtOH–H2O at room temperature and the extract was further fractionated by using liquid-liquid extraction and repeated column- chromatographic techniques. Spectroscopic data (IR, MS, 1D- and 2D-NMR) were used to determine structures of isolated compounds. Results: Thirteen compounds were isolated and structurally determined. Oleanolic acid (2), scopoletin (3), cleomiscosin A (4), (E)-mappianine E (5a), (Z)-mappianine E (5b), vanillic acid (6), 2-hydroxyacetophenone-4-O-β-D-glucopyranoside (7), sweroside (10), and 4-methoxyacetophenone- 2-O-β-D-glucopyranoside (11) were isolated for the first time from L. pinceana. Compounds 6, 10, 11, loganin (8), 7-ketologanin (9) were not active (IC50 > 300 µg/ml), whereas 7 showed a weak activity (IC50 268.35 µg/ml) in the DPPH (1,1-diphenylpicrazyl) radical scavenging assay. A mixture of 5a/5b was cytotoxic against the human cancer cell line HepG2 (IC50 100.57 µg/ml) in the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. Conclusion: L. pinceana in Vietnam was investigated for the first time. We isolated compounds of varied biosynthetic origins including monoterpene indole, iridoid, coumarin, coumaro-lignoid, phytosterol, oleanane triterpenoid, phenolic acid, and acetophenone. Nine of the thirteen compounds are newly isolated from L. pinceana. The study determined weak scavenging activity of acetophenone (7) in the DPPH-scavenging assay and weak cytotoxicity of a mixture of two monoterpene indoles (5a and 5b) against HepG2 cell.

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