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Plant extracts
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Alocasia odora is a common plant species in Viet Nam. A phytochemical investigation of the ethyl acetate extract (EtOAc) of A. odora rhizomes collected in Tuyen Quang province led to the isolation and determination of five compounds, including three alkaloids, alocasin A, hyrtiosin B, hyrtiosulawesine (3), one mono-phenol, phydroxycinamic acid, and one fatty acid, myristic acid.
7p
viamancio
04-06-2024
4
0
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Pluchea pteropoda, an annual plant in the Asteraceae family, has traditionally been used in Vietnamese folk medicine as an alternative treatment for high fever, indigestion, and painful and swollen wounds. The present study investigates the acute toxicity and antiinflammatory effects of P. pteropoda aerial parts ethanol extract (EtPP) in animal models. EtPP exhibited no toxicity in mice with a single dose of up to 5000 mg/kg.
5p
vicarlos
16-05-2024
0
0
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In our study, the mixture of cellulase and pectinase were used to exploit plant matrix. The combination of these enzymes increased the extraction efficiency compared to single enzyme treatment. The fresh tea leaves, byproduct of the green tea processing, were utilized as materials for extracting. And the enzyme-assisted extraction was investigated. Firstly, the materials were treated with the mixture of cellulase and pectinase.
12p
dianmotminh02
03-05-2024
1
1
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In recent studies, Azadirachta indica, Andrographis paniculate, Ocimum canum and Pongamia pinnata, which are inhibitors derived from plants have been used to provide corrosion inhibition effect. The inhibitive ability of C. albidum in several corrosive media reported by researchers has prompted its examination in 1 M H2SO4 solution using polarization techniques, gravimetric and gasometric in this present work.
9p
dianmotminh02
03-05-2024
3
1
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Structure, absolute configuration and cytotoxicity of compounds isolated from Decaschistia harmandii
In this work, we report the isolation and structure characterization of four compounds from ethyl acetate extract of the aerial part of D. harmandii for the first time. Especially, the absolute configuration of dimer stilbene ampelopsin F was successfully established upon circular dichroism (ECD) data. Besides, the cytotoxic properties of these compounds was also investigated on the cancer cell lines.
6p
dianmotminh02
03-05-2024
3
1
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In order to explore the importance of the Antheroporum genus in pharmaceutical applications, two bioactivities of A. harmandii plant extracts have been evaluated in this study. Antimicrobial and antioxidant activities of A. harmandii extracts will provide evidences for further chemical composition studies to detect new bioactive compounds from this species.
9p
dianmotminh02
03-05-2024
3
1
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This study, a range of temperatures, lighting periods and salinity levels were examined for cyst hatching. The quality nauplii from optimized cyst hatching conditions were used to determine the toxicity of 26 methanol extracts of 24 poisonous plant species collected from the mountainous regions in Quang Tri province of Vietnam.
13p
dianmotminh02
03-05-2024
2
1
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The methanol extracts as well as some compounds from this plant exhibited anti-inflammatory, antimicrobial activity, antioxidant, hepatoprotective and anti-cancer effect, and antiosteoporotic. On going to search for bioactive components from the Vietnamese plant, this paper reported the isolation of seven phenolic compounds including one new from the aerial parts of A. ilicifolius. The cytotoxic activity of the isolates against two cancer cell lines (HepG2 and SK-LU1) were also screened and reported herein.
5p
dianmotminh02
03-05-2024
5
1
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From CHCl3-soluble extract of the leaves of Taxus wallichiana (Taxaceae), collected in Lam Dong Province, five compounds were isolated and identified as sciadopitysin, ginkgetin, (S)-(+)-rhododenol, (+)-erythro-N-benzoyl3-phenylisoserine methyl ester, and (−)-α-conidendrin (5). Their chemical structures were determined by 1D and 2D NMR spectra and comparison with published data. Except for (−)-α-conidendrin, these remaining compounds were first reported of Taxus wallichiana.
6p
dianmotminh02
03-05-2024
4
3
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Photocatalytic degradation proficiency was studied for bromothymol blue dye. Phytochemicals-coated Nickel Oxide nanoparticles demonstrated antibacterial properties against bacteria (gram negative strain of E. coli, Pseudomonas spp. and gram positive strain of Bacillus spp.) by showing highest zone of inhibition (19 mm, 22 mm, 15 mm).the antioxidant activity of the synthesized nanoparticles were also examined and the result show that the fabricated nanoparticles exhibited significant radical scavenging activity.
10p
dianmotminh02
03-05-2024
5
2
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In this study, we carried out the optimization of extraction condition of polysaccharide and tannin from three medicinal plants (Ganoderma lucidum (Leyss. Ex Fr.) Karst, Morinda officianalis How and Camellia tamdaoensis Ninh et Hakoda).
8p
vilarry
01-04-2024
4
1
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Synthesis of silver nanoparticles (AgNPs) using plant extracts extracted from Ganoderma lucidum in the buffer zone of Bach Ma National Park, Vietnam is a simple, convenient, economical, and environmentally friendly method. This study describes the biosynthesis of silver nanoparticles in both cases with and without ultrasonic assistance using Ganoderma lucidum extract as a reducing and protective agent.
9p
viritesh
02-04-2024
2
1
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In the present study, we investigated the antifungal activity of a methanolic extract of Glycyrrhiza uralensis Fisch. root, which inhibited the growth of the plant pathogens Fusarium oxysporum and Phytophthora capsici.
7p
viellison
28-03-2024
1
1
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Part 2 book "Advances in chemical engineering" includes content: Systematic framework for multi objective optimization in chemical process plant design; optimal synthesis of multi effect evaporation systems of solutions with a high boiling point rise; phase diagrams in chemical engineering - Application to distillation and solvent extraction;... and other contents.
260p
muasambanhan09
16-03-2024
2
1
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Hypericum sampsonii or Sampson’s St John’s Wort is a species of flowering plant in the Hypericaceae family. Our previous study revealed the diverse and bioactive chemical constituents of the plant. This study investigates the antioxidant activity and potential hepatoprotective of Hypericum sampsonii extract (BLD1 extract) in vitro and in vivo.
7p
vilarry
12-03-2024
6
1
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Part 2 book "Chemical engineering design - Principles, practice and economics of plant and process design" includes content: Optimization in design; plant design; equipment selection, specification, and design; design of pressure vessels; design of reactors and mixers; separation of fluids; separation columns distillation, absorption, and extraction; specification and design of solids handling equipment; heat transfer equipment; transport and storage of fluids.
782p
muasambanhan08
01-03-2024
2
1
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Part 2 book "Chemical engineering design - Principles practice and economics of plant and process design" includes content: Costing and project evaluation, materials of construction, design information and data, safety and loss prevention, equipment selection, specification and design, separation columns (distillation, absorption and extraction).
496p
muasambanhan08
01-03-2024
5
0
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Ebook "Q’eqchi’ maya reproductive ethnomedicine" have an extensive pharmacopoeia of medicinal plants used traditionally for reproductive health and fertility, utilizing more than 60 plant species for these health treatments. Ten species were selected for investigation of their estrogenic activity using a reporter gene assay. Nine of the species were estrogenic, four of the species were also antiestrogenic, and two of the extracts were cytotoxic to the MCF-7 breast cancer cell line.
134p
manmanthanhla0201
26-02-2024
2
1
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Belamcanda chinensis (L.) DC is a popular ornamental and medicinal plant belonging to the Iridaceae family. Its rhizomes are used in Vietnamese traditional medicine for the treatment of inflammation and respiratory disorders, such as asthma, tonsillitis, coughing, and pharyngitis. In this study, four iridal-type triterpenoid derivatives (1–4) and four isoflavonoids (5–8) have been isolated from the methanol extract of Belamcanda chinensis roots.
7p
vibego
02-02-2024
0
0
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Liver cancer and breast cancer have high death rates and tend to increase rapidly in recent years in Vietnam and over the world. Currently, the study of bioactive compounds isolated from plants for killing cancer cells is of interest. The study aims to identify the cytotoxicity using MTT assay of Combretum quadrangulare Kurz fractions against MCF-7 cells.
10p
vibego
02-02-2024
0
0
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