Culture conditions

The aim of this study was to investigate the optimal culture conditions including pH level, temperature, media and substrate mixtures for the mycelium growth and cultivation of Hericium erinaceus strain He-2.

10p vibecca 01-10-2024 3 1   Download

Lentinula edodes (Berk.) Pegler, commonly known as shiitake mushroom, is one of the most popular edible mushrooms with valuable medicinal properties. This study aimed to optimize the culture conditions for the mycelial growth and fruiting body development of two shiitake strains, J1 and J2.

11p vibecca 01-10-2024 2 1   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

In this study, 64 isolates of Streptomyces were screened for their antibacterial activity against Erwinia spp. The results indicated that 18 isolates showed an antagonistic reaction against Erwinia spp. Among them, isolate D5.1 showed the highest inhibition activity.

10p vibecca 01-10-2024 2 2   Download

This research develops a rich theoretical and empirical understanding of embeddedness by way of three dimensions (structural, relational and cultural), and investigates its implications for actors’ value co-creation behaviours and value-in-context outcomes. In addition, the research refines co-creation perspectives by examining a central boundary condition of co-creation processes. The data was collected in an online service environment and was analysed using structural equation modelling techniques.

183p runthenight04 02-02-2023 7 2   Download

In the present study "Improving culture conditions for poly(3- hydroxybutyrate-co-3-hydroxyvalerate) production by Bacillus sp. ND153, a bacterium isolated from a mangrove forest in Vietnam", we examined the variations in the compositions of the culture medium to optimize the conditions for PHBV production by Bacillus sp. ND153, a halotolerant bacterium strain isolated from a mangrove forest in Vietnam (Van-Thuoc et al. 2012).

9p runordie3 27-06-2022 8 3   Download

The results showed that the RPA reaction, without requiring complex thermal cycles, was well-performed in the optimal conditions of 39°C within only 25 minutes. The limit of detection was identified as 310 fg of L. monocytogenes genomic DNA, which was 1000-fold more sensitive than the conventional PCR. RPA also succeeded to directly detect L. monocytogenes cells at a concentration as low as 2.5 × 101 Colony Forming Unit (CFU)/mL in pure cultures. In addition, RPA could accurately detect L. monocytogenes at 2.5 × 102 CFU/mL in milk without sample extraction or processing.

5p mudbound 10-12-2021 17 2   Download

Objectives of the study: Survey of biological activity of alkaloid isolated from hairy roots of E.longifolia to find new activities. Determining optimal culture conditions for E.longifolia hairy roots to grow and develop. Determining the concentration of three elicitors (Salicylic acid, Jasmonic acid and Yeat extract) on the production and accumulation of alkaloids isolated from hairy roots of E.longifolia in vitro.

26p extraenglish 24-05-2021 30 5   Download

Optimazize the in vitro Ngoc Linh ginseng lateral root culture and multiplicate the root biomass is more stable and higher in bioreactor system. Determine and evalute the effect of different types, and concentrations of five elicitors (SA, JA, ABA, CHN và YE) on producing saponin compounds. Next, combine in various types of elicitors to enhance effectiveness of the saponin accumulation, and determine the best elicitation time to develop the highest saponin in LRs of Ngoc Linh từ ARs in vitro.

27p nguathienthan12 23-05-2021 16 3   Download

The objective of the study was to find the explant resources, the type and concentration of plant growth regulators (PGRs), as well as the in vitro culture conditions suitable for different morphogenesis processes - callus induction, direct embryogenesis, shoot and root formation, etc. The growth and development of in vitro Ngoc Linh ginseng derived from thin cell layer (TCL) was examined in Quang Nam to assess the adaptability of in vitro Ngoc Linh plantlets in its natural territory, compared to those growing in Bidoup - Nui Ba National Park, Lam Dong.

27p capheviahe27 23-02-2021 21 5   Download

To provide scientific data on biological characteristics, breeding techniques, nursing and grow-out of Helmet Catfish - Cranoglanis bouderius (Richardson, 1846) in culture condition of Nghe An province. The success of the thesis will greatly contribute the basic knowledge to develop the seed production technique that can help to support the seed resources for commercial culture models and gene resources conservation for this species.

28p capheviahe27 23-02-2021 16 4   Download

The thesis proposes solutions to SALM in Bac Giang City in the direction of spatial, architectural and landscape construction and development toward a green city, then contributing to improving the quality of people’s living; preserving and promoting cultural values, natural conditions, socio-economic development, and climate change resilience.

27p trinhthamhodang7 31-08-2020 15 1   Download

Three bio-agents i.e. Trichoderma viridae, Trichoderma harzianum and Trichoderma aspergillum were evaluated against Botrytis cinerea under in vitro condition. Culture disc of fungal bio-agents and pathogen were taken from the growing cultures and transferred to PDA contained in 70 mm petridishes on opposite sides approximately at one cm from the wall of the plate. Among these three bio-gents Trichodema harzianum showed best mycelial growth inhibition of Botrytis cinerea.

5p nguaconbaynhay7 15-08-2020 14 2   Download

The general objective of this thesis is to develop a framework for transition of financial statements from Vietnamese Accounting Standard (VAS) to Intrenational Financial Reporting Standard (IFRS) for Vietnamese companies. It is necessary to identify and measure factors that affect in transition of IFRS financial statements in the conditions of economic, political, cultural and social of Vietnam.

32p quenchua 28-09-2019 36 4   Download

The objective of the study was to find the explant resources, the type and concentration of plant growth regulators (PGRs), as well as the in vitro culture conditions suitable for different morphogenesis processes - callus induction, direct embryogenesis, shoot and root formation, etc. The growth and development of in vitro Ngoc Linh ginseng derived from thin cell layer (TCL) was examined in Quang Nam to assess the adaptability of in vitro Ngoc Linh plantlets in its natural territory, compared to those growing in Bidoup - Nui Ba National Park, Lam Dong.

27p xacxuoc4321 09-07-2019 33 5   Download

This study seeks to evaluate the barriers to employment in the UK which limit the mobility of EU nations between EU member states. Three objectives were set which consist of the following: identify the ability of doctors and nurses to move between EU countries, identify the main stakeholders of the UK's healthcare industry and identify mobility barriers present in UK hospitals. The literature suggests that the main type of professional migrants going to UK hospitals consist of permanent settlers and temporary professional transients.

67p nguyenyenyn117 18-06-2019 49 6   Download

This study aimed to investigating biodiversity and to screening actinomycete strains exhibiting high antimicrobial activity among a collection of actinomycetes isolated from Catba island, a national park with rich biodiversity in Viettiam.

10p trieuroger 13-09-2018 34 1   Download

The result showed that only 6% single cancer cells developed into tumorspheres during culture process. Then, flow cytometry and immunofluorescence analysis was carried out to evaluate the expression of CSC markers CD44 and ALDH in samples taken from tumorspheres which arose from gastric CSCs. The results showed that gastric CSCs formed tumorspheres in 3D culture condition with a high expression of 92% and 40,1% for markers CD44 and ALDH, respectively.

8p cumeo4000 01-08-2018 25 0   Download

Quality of life (QoL) among the elderly is a big problem in Vietnam due to a growing proportion of the elderly in Vietnam while many conditions, including policies, social facilities, culture and other factors are not ready to support for QoL among elderly.

15p cumeo4000 01-08-2018 56 3   Download

The objective of this study was to investigate the effects of positive ferric-bubble on behaviors of chain-like and pin-like algae (i.e. Phormidium specie (sp.) and Nitzchia pungens, respectively). Two selected algae were cultured in a laboratory under the certain conditions. At stationary phase, algae were below 4 µm in diameter and in the range of 50 ~ 100 µm for chainlike algae, of 20 – 35 µm for pin-like shape in length; with negatively charged at cultivated conditions (pH from 6.5 to 9).

6p cumeo3000 01-08-2018 21 0   Download