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Study on the antagonistic activity against two pathogenic bacteria in humans (Staphylococcus aureus and Streptococcus pneumoniae) of the Streptomyces MIP_L26 (Called MIP_L26), isolated from the soil in the root zone of the May Chang tree; to investigate the biological characteristics of MIP_L26.

6p vipanly 28-10-2024 0 0   Download

Bacillus velezensis RB.IBE29 was originally isolated from the rhizospheric soil of black pepper cultivated in the Central Highlands. Previous studies showed that this bacterium was a good chitinase producer, biocontrol agent, and biofertilizer.

6p viengfa 28-10-2024 3 0   Download

This research focused on optimizing microencapsulation techniques for safflower oil using the complex coacervate between hydrolyzed karaya gum and Lima bean protein isolate and analyzing the influence of various drying methods on encapsulation efficiency and stability.

12p viling 11-10-2024 1 1   Download

This study aimed to determine subclinical mastitis (SCM) caused by bacterial species, using chromogenic culture media and to assess the antimicrobial resistance rate in the isolated bacteria. From March to December 2023, 143 milk samples were collected from 71 Holstein Friesian cows with SCM across seven dairy farms in Ho Chi Minh City and Binh Duong province.

13p vibecca 01-10-2024 2 2   Download

In this study, Cat Hai fish sauce, one of the major traditional fish sauce manufacturers in Vietnam, was used to investigate the variation in histamine content during the fermentation process and to isolate histamine-producing bacteria. Six Dich Chuop samples corresponding to the first sixth months from the beginning of fermentation were collected for these purposes.

10p vibecca 01-10-2024 2 2   Download

In this study, with the aim of determining and assessing the influence of several culture conditions on the ligninolytic enzyme (LiP, MnP, and Lac) activity of bacteria, five lignin-degrading bacteria strains were isolated from two different soil samples and cultured on minimum salt medium agar containing alkaline lignin (MSML agar).

10p vibecca 01-10-2024 1 1   Download

This study aimed to diagnose swine dysentery (SD) caused by Brachyspira hyodysenteriae in pigs by the PCR method in Vietnam. Of the 250 samples, 29 isolates of B. hyodysenteriae (11.60%) were identified by PCR in seven provinces of Northern Vietnam, and the infection rate differed from region to region.

8p vibecca 01-10-2024 4 2   Download

The rhizosphere microorganisms can form beneficial, pathogenic, or neutral relationships. These relationships can promote plant growth and productivity. Among them, a number of Variovorax isolates from the rhizosphere were isolated. Bacteria Variovorax strain C6d (AB552893) was isolated from the non axenic culture of Chlorella spp., C6.

8p vibecca 01-10-2024 4 2   Download

In this research, we continued to generate the polyclonal antibodies against SRBSDV based on small conservative antigen-rich peptides derived from the P10 protein of representative Vietnam SRBSDV isolates. The resulting antibody will be the premise for developing an SRBSDV rapid diagnostic kit in future.

9p vibecca 01-10-2024 5 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

This study aimed to analyze the current situation of vocational training for farmers and farmers’ needs for vocational training in the next years in extremely isolated communities. The primary data were collected from 480 farmers in 16 communes.

13p vibecca 01-10-2024 3 1   Download

In this paper, we reported the isolation and structure resolution of five flavonoids including three flavan-3-ol compounds, (+)-catechin (1), (-)- catechin (2), and catechin 3- O-α-L-rhamnopyranoside (3), one flavone, chrysoeriol (4) and one flavononol, engeletin (5) from leaves of C. brachiata Merr.

7p viyoko 01-10-2024 4 1   Download

New antimicrobials are urgently needed to combat the threat of multidrug-resistant bacteria worldwide. Our study aimed to access the antimicrobial and cytotoxic profiles of endophytic actinomycetes associated with Cinnamomum cassia Presl taken from a mountainous region in the Northwest of Vietnam.

11p viling 27-09-2024 4 2   Download

Endophytic microbes of medicinal plants are known to involve the synthesis of several bioactive compounds, which promote plant growth and resistance to diseases. In order to investigate endophytes in the important medicinal plant Catharanthus roseus, 16 endophytic microorganism strains were isolated from root samples of C. roseus var. roseus and C. roseus var. ocellatus naturally growing in coastal areas of Nha Trang, Vietnam.

12p viling 27-09-2024 4 2   Download

This article presents the modeling and the nonlinear dynamic analysis of base-isolated frame structures using linear theory (with non-classical damping matrix) and nonlinear theory (with 6-parameter Bouc-Wen bearing model). The computations are done with the aid from Julia scientific language.

8p viyoko 24-09-2024 4 1   Download

The rate of antibiotic resistance in Helicobacter pylori (H.pylori) is increasing in Vietnam in recent years and has become a main challenge in the management of H. pylori infection. Data about the resistance remains different depending on the time, demography and especially the methods of determining the antibiotics susceptibility. To determine the antibiogram of H.pylori strains isolated from a population in Central Vietnam to clarithromycin, levofloxacin by E-test and disk diffusion, compare two diffusion methods.

7p vifaye 20-09-2024 2 1   Download

Hippeastrum reticulatum (L.Hér.) Herb is a species of the Hippeastrum Herb. genus. Screening studies have shown that this species has the ability to inhibit the enzyme acetylcholinesterase. So far, research on this species is still very limited. The purpose of this study is to provide some more informations about the chemical composition and bioactive of isolated compounds from this species.

5p vifaye 20-09-2024 4 2   Download

Group B streptococcus (GBS) is known as a commensal flora in human gastrointestinal and genitourinary tracts. This study aimed to determine the antibiotic resistance of GBS strains isolated and to determine the serotype distribution of isolated GBS strains.

5p vifaye 20-09-2024 5 1   Download

Buxus latistyla Gagnep. (Buxaceae) has been used as a remedy for treating malaria, haemoptysis, amoebic dysentery etc. However, its chemical constituents are still unknown. Thus, the aim of this study was to identify phytochemicals isolated from this plant.

7p vifaye 20-09-2024 4 1   Download

Distribution of the proportion of bacterial isolates and their antibiotic resistance rate at Ninh Thuan Provincial General Hospital (NTPGH). Subjects and methods: All bacterial isolates from various types of clinical specimens from a departments of NTPGH from October 1, 2022 to September 30, 2023.

9p vifaye 20-09-2024 12 1   Download