Plant extracts

Xao tam phan (XTP), a medicinal plant renowned for its health benefits, is rich in antioxidants such as saponins, phenolics, flavonoids, and proanthocyanidins. Although existing studies confirm that the presence of these beneficial phytochemicals in XTP, further research is essential to optimize their extraction yield.

12p viling 11-10-2024 2 1   Download

Gout is one of arthritis diseases resulting from high levels of plasma uric acid. Screening of medicinal plants for analgesic and an-hyperuricemic effects is necessary to prevent and treat gout disease. Homalomena has been widely used in traditional medicine for the treatment of bone diseases. Homalomena pierreana is a newly discovered rare species found in Vietnam.

8p viling 11-10-2024 0 0   Download

Anthracnose is the most prevalent and devastating fungal disease both before and after harvesting of mango worldwide. The anthracnose pathogen infects fruit in the field and remains quiescent until the fruit is harvested and starts to ripen.

10p vibecca 01-10-2024 2 2   Download

In this study, two experiments were conducted to understand the effects of supplemental organic nutrient solutions on plant growth and yield in climbing perch-water spinach aquaponics.

10p vibecca 01-10-2024 3 2   Download

This study aimed to quantify the phenolic contents and the antioxidant capacities of leaf extract powders from three Myrtaceae plants, namely Cleistocalyx operculatus (Vietnamese name: Vối), Psidium guajava (Ổi), and Rhodomyrtus tomentosa (Sim), investigate their inhibitive activities on the growth of bacteria isolated from spoiled shrimps, and evaluate their values as preservative agents in the cold storage of Pacific whiteleg shrimps (Penaeus vannamei).

15p vibecca 01-10-2024 3 2   Download

In the present work, a green synthesis of cuprous oxide nanoparticles was demonstrated using the freshly prepared aqueous extract of the aloe vera plant and the cupper oxide nanoparticles were characterized by the analytical techniques such as UV-Vis, FT-IR, XRD, and EDX.

5p vikwong 29-09-2024 2 1   Download

Piper betle Linn. (Piperaceae) commonly known as betel vine is a popular medicinal plant in Asia.[1] Piper betle leaves have been used as a traditional medicine to treat a variety of health conditions thanks to their antibacterial, antifungal and antioxidant properties.

7p vikwong 29-09-2024 4 1   Download

Distichochlamys citrea (DC) is an endemic ginger species used in treating associatedheart diseases in traditional medicine in Vietnam. However, scientific evidence to support the local use of this plant was limited. The present study aimed to investigate the antioxidant and antithrombotic activities of D. citrea extracts for the first time. The antioxidant activity of DC extracts was assessed by scavenging DPPH radical and measuring their total phenolic content (TPC). The antithrombotic activity was evaluated by inhibiting platelet aggregation and prolonging blood coagulation.

17p xuanphongdacy06 18-09-2024 3 1   Download

To evaluate the prophylactic effects of cirrhosis of Helicteres hirsuta Lour (HHW) in experimental animals. The results of the study serve as a basis for proposing further research on the mechanism of liver protection and other pharmacological effects of this herbal medicine.

10p viavatis 29-08-2024 3 1   Download

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 6 2   Download

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 7 2   Download

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 8 2   Download

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 10 4   Download

The diversity of medicinal plants in Vietnam is a rich source to develop novel health products. In this study, the antioxidant and antimicrobial activities of ethanolic extracts of Pluchea indica, Drynaria fortunei, Stephania glabra, lemongrass (Cymbopogon citratus) and lime (Citrus aurantifolia) mixture, and ginger (Zingiber officinale) and kumquat (Citrus japonica) mixture, were evaluated.

7p guitaracoustic02 08-12-2021 13 1   Download

The characteristics of synthesized nanoparticles depend on the source of the plant extracts because of different combinations and concentrations of organic reducing agents present in the extracts (Mukunthan and Balaji, 2012).

178p spiritedaway36 26-11-2021 11 2   Download

In vitro study evaluates the cytoroxicity, MTT assay, Inhibition of carbohydrates digestive enzymes and Glucose Uptake assay on Grewia umbellifera and Aphanamixis polystachaya. It shows that ELEGU has Glucose uptake by L6 cell lines to some extent than ELEAP.

253p spiritedaway36 26-11-2021 13 3   Download

Objectives: Assess the diversity of essential oil-bearing plants and the chemical composition of essential oils extracted from some oil-bearing species in Vu Quang National Park, Ha Tinh province

28p prisonbreak123 21-05-2021 24 3   Download

Response surface methodology was applied to optimize the extraction of phenolic compounds from fresh Pouzolzia zeylanica plant using hot water as a solvent. A central composite design (CCD) in form (23+star) was used to investigate the effects of two independent variables, namely, extraction temperature (70 to 90oC) and extraction time (20 to 40 min).

10p larachdumlanat129 19-01-2021 19 2   Download

The maceration was applied to the seeds of the plant to afford the crude extract which was then fractionated by liquid-liquid extraction to obtain the ethyl acetate extract. The extract was carried out by using normal phase silica gel column chromatography and thin-layer chromatography. Analysis of spectroscopic data including HR-ESI-MS, 1D and 2D-NMR and a comparison of the NMR data with that in the literature led to the structural elucidation of isolated compounds.

4p larachdumlanat127 02-01-2021 12 2   Download

From the methanol extract of dried powders of Hedyotis diffusa Willd. (Rubiaceae) plant growing in Tuyen Quang Province, three compounds were isolated and identified: B-sitosterol, daucosterol and ursolic acid. Their structures were confirmed by various spectral methods (IR, NMR, MS, 1H-NMR, 13C-NMR, etc.) and by comparison with those of references.

5p larachdumlanat127 20-12-2020 29 3   Download