Home › Biochemistry › Multi-step Preparation Technique to Recover Multiple Metabolite Compound Classes for In-depth and Informative Metabolomic Analysis
Biochemistry JoVE (Open Access) Citable · DOI

Multi-step Preparation Technique to Recover Multiple Metabolite Compound Classes for In-depth and Informative Metabolomic Analysis

DOI: 10.3791/51670-v
What you'll learn
  • ✓ Execute protein precipitation, liquid-liquid extraction, and solid-phase extraction sequentially
  • ✓ Recover multiple metabolite compound classes from biological fluid samples
  • ✓ Optimize sample preparation for comprehensive metabolomic analysis
Protocol

Biopharma Insights The reliability of results in metabolomics experiments depends on the effectiveness and reproducibility of the sample preparation. Described is a rigorous and in-depth method that enables extraction of metabolites from biological fluids with the option of subsequently analyzing up to thousands of compounds, or just the compound classes of interest.

Difficulty
intermediate
Total time
~4–6 hours per sample batch (depending on number of samples and analyst experience)

Steps

1
Perform protein precipitation on biological fluid

Remove proteins from biological fluid samples using solvent precipitation. This initial step eliminates macromolecules that interfere with downstream metabolite extraction and analysis.

▶ 01:22
2
Conduct liquid-liquid extraction for metabolite recovery

Separate metabolites from aqueous solutions using immiscible organic solvents. This step selectively partitions compounds based on hydrophobicity to isolate target metabolites.

▶ 04:21
3
Apply solid-phase extraction to purify compounds

Use solid-phase sorbent columns to further purify and concentrate metabolites from complex biological matrices. This step enhances selectivity and removes remaining interfering substances.

▶ 06:55
4
Verify effective metabolite extraction from biological fluids

Assess the recovery and quality of extracted metabolites through analytical validation. Results demonstrate successful extraction of diverse compound classes for downstream metabolomic profiling.

▶ 09:12
💬 Comments coming soon