Extraction Optimization
Extraction Optimization - Related Videos
09:13
Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve
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2017
The protein composition of the human mitral valve is still partially unknown, because its analysis is complicated by low cellularity and therefore by low protein biosynthesis. This work provides a protocol to efficiently extract protein for the analysis of the mitral valve proteome.
08:40
Optimization of the Wound Scratch Assay to Detect Changes in Murine Mesenchymal Stromal Cell Migration After Damage by Soluble Cigarette Smoke Extract
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Cited by 44 •
2015
The capacity to migrate is a key function of many different cell types, including mesenchymal stromal cells (MSCs). However, quantifying alterations in migratory capacity after damage is challenging. This protocol describes an easily adaptable migration assay that uses rigorous statistics to quantify changes in MSC migratory capacity after damage.
02:55
Extraction - Concepts
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2020
Extraction Extraction is a common technique used in organic chemistry to isolate a target compound. In the extraction process, a solute is transferred from one phase to another to separate it from unreacted starting materials or impurities. Extraction is also used to facilitate the isolation of a solute from a reaction solvent that is difficult to remove by evaporation, such as a solvent with a high boiling point. Generally, there are three types of extractions. First, in solid-liquid...
06:42
Extraction of Biomarkers from Sediments - Accelerated Solvent Extraction
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2023
Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst The distribution of a group of organic biomarkers called glycerol-dialkyl glycerol-tetraethers (GDGTs), produced by a suite of archaea and bacteria, were found in modern sediments to change in a predictable manner in response to air or water temperature1,2. Therefore, the distribution of these biomarkers in a sequence of sediments of known age can be used to reconstruct the evolution of air and/or water temperature on...
03:37
Optimal Foraging - Concepts
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2019
Optimal Foraging Organisms must acquire and use resources in their environment to survive. While food is one of the primary resources organisms must search for, individuals also need to seek habitats, shelter, and mates. This process of searching for resources is known as foraging, which involves a series of costs and benefits. More specifically, acquiring a resource provides the organism with a benefit, however, searching and capturing the resource requires expenditure of time and energy.
FAQs
Solvent composition, pH, temperature, extraction time, mixing, and the solid-to-liquid ratio can each alter recovery and selectivity. Their effects are linked to biomolecule solubility, partitioning between phases, stability, and release from the starting material. Adjusting these variables helps balance efficient target recovery against contamination, degradation, sample loss, processing time, and reagent consumption.
Solvent composition and pH influence where a biomolecule preferentially dissolves and how it partitions relative to other sample components. These conditions can therefore change both the amount recovered and the selectivity of the extract. Evaluating them together is important because a condition that improves solubility may also alter contamination levels or affect biomolecule stability.
These variables influence how completely biomolecules are released from the starting material and how efficiently the sample contacts the extraction medium. Increasing or changing a condition may improve recovery, but the resulting extract must still be assessed for selectivity, stability, processing time, and reagent use. Careful adjustment supports a reproducible balance rather than maximizing one factor alone.
Researchers compare extraction conditions by examining recovery, selectivity, reproducibility, contamination, processing time, and reagent requirements. The selected condition should provide sufficient target biomolecule while limiting unwanted sample components and loss. This evaluation produces material that is more dependable for downstream purification, characterization, and quantitative assays than material obtained from an unexamined or inconsistent protocol.
A practical procedure should define the solvent composition, pH, temperature, extraction time, mixing conditions, and solid-to-liquid ratio used with the starting material. Keeping these factors controlled allows meaningful comparison between conditions and helps identify a protocol that balances recovery, selectivity, stability, processing efficiency, and reproducibility for the target biomolecule.
Optimized workflows can support the recovery of proteins, nucleic acids, lipids, metabolites, and other biochemical compounds from complex samples. The resulting extracts may provide more reliable material for purification, structural or compositional characterization, and quantitative assays. The most relevant conditions depend on the target's solubility, partitioning behavior, stability, and release from the sample.