A fluorometric method for the determination of triglycerides in nanomolar quantities

Area of Science:

• Biochemistry
• Analytical Chemistry

Background:

• Triglycerides are key lipids in metabolic processes.
• Accurate quantification of triglycerides is crucial for diagnostics and research.

Purpose of the Study:

• To develop a sensitive fluorometric assay for quantifying triglycerides.
• To establish a reliable method for measuring nanomole quantities of triglycerides.

Main Methods:

• Enzymatic liberation of glycerol from triglycerides using lipase.
• Conversion of glycerol to glycerol-3-phosphate via glycerol kinase.
• Oxidation of glycerol-3-phosphate by glycerol-3-phosphate oxidase to produce hydrogen peroxide (H2O2).
• Fluorometric detection of H2O2 using p-hydroxyphenylacetic acid and peroxidase.

Main Results:

• The assay quantifies triglycerides in nanomole quantities.
• The fluorogen exhibits excitation and emission wavelengths of 325 nm and 415 nm, respectively.
• Linearity of the assay was demonstrated in the range of 0.05-35 nmol of triglycerides with triolein as a standard.

Conclusions:

• A novel and sensitive fluorometric assay for triglyceride quantification has been established.
• This method enables precise measurement of low triglyceride concentrations.
• The assay is suitable for applications requiring the determination of nanomole quantities of triglycerides.