Culture Preparation
Culture Preparation - Related Videos
07:42
Chromosome Preparation From Cultured Cells
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Cited by 146 •
2014
Chromosomes can be isolated from live cells such as lymphocytes or skin fibroblasts, and from organisms including humans or mice. These chromosome preparations can be further utilized for routine G-banding and molecular cytogenetic procedures such as fluorescence in situ hybridization (FISH), comparative genomic hybridization (CGH), and spectral karyotyping (SKY).
02:41
Preparation of Salmonella typhimurium Culture
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2025
Source: Gutiérrez, S., et. al., Isolation of Salmonella typhimurium-containing Phagosomes from Macrophages. J. Vis. Exp. (2017)This video demonstrates the culturing and preparation of Salmonella typhimurium to obtain a clean, metabolically active bacterial suspension suitable for experimental use.
03:09
A Technique to Prepare a Monoclonal Bacterial Culture
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2025
Source: Lin, P., et al. Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion. J. Vis. Exp. (2018).This video demonstrates the preparation of a monoclonal bacterial culture for mineral production through serial dilution and colony isolation on an agar plate. By shaking the plate with glass beads, individual cells are spatially separated to form genetically uniform colonies, which are then transferred to liquid media for growth. The culture with the...
02:01
Preparation of Cyanobacterial Culture for Biomass Production
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2025
Source: Jiang, H., Ho, M. Isolation and Characterization of Intact Phycobilisome in Cyanobacteria. J. Vis. Exp.(2021).This video demonstrates the procedure for culturing cyanobacteria to obtain biomass by growing cells under continuous illumination with carbon dioxide supply and nutrient-rich conditions, followed by harvesting via centrifugation.
11:16
Preparation and Culture of Chicken Auditory Brainstem Slices
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Cited by 17 •
2011
The chicken auditory brainstem is comprised of nuclei responsible for binaural sound processing. A single coronal slice preparation maintains the entire circuitry while the cultured approach provides a unique preparation to study the development of neuronal structure and auditory function at the molecular, cellular and network levels.
FAQs
The culture medium provides the nutrients and other conditions needed to support the selected biological material. Choosing an appropriate medium helps maintain viability and promotes growth, while an unsuitable choice can limit the culture’s usefulness. Medium selection therefore directly affects whether researchers can obtain stable observations from cells, tissues, microorganisms, or other living samples.
Aseptic technique reduces the chance that unwanted biological material will enter the culture. Contamination can change culture behavior and compromise experimental results, making it difficult to determine whether observed effects came from the intended sample. Sterile vessels and equipment, combined with careful handling, help preserve the reliability and interpretability of the culture.
Temperature, pH, nutrient availability, and gas exchange are central conditions for maintaining viable biological material. These factors must be controlled together because the culture depends on an environment that supports continued growth and consistent behavior. Maintaining comparable conditions across preparations also helps researchers obtain more reproducible observations and responses.
A typical workflow begins by selecting a medium suited to the biological sample, then preparing sterile vessels and equipment. The sample is introduced into the prepared system, after which temperature, pH, nutrients, and gas exchange are maintained under controlled conditions. This sequence supports viability while limiting contamination that could compromise later observations.
Researchers use culture preparation when they need a controlled system for studying living material. Its applications include cell and microbial research, disease modeling, drug testing, biotechnology, and production of biological materials. By keeping growth conditions defined, cultures allow investigators to examine biological behavior and responses without relying only on observations from uncontrolled settings.
A prepared culture can provide a reproducible system for observing growth, biological responses, and interactions. These observations may support disease models, evaluation of drug effects, or investigations involving cells and microorganisms. The value of the resulting information depends on maintaining suitable nutrients, environmental conditions, and protection from contamination throughout the culture process.