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F6428

Sigma-Aldrich

Free Glycerol Reagent

used for quantitative enzymatic determination of glycerol

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.25

Quality Level

form

solid

usage

40 mL sufficient for 50 reactions

color

white to off-white

functional group

hydroxyl

relevant disease(s)

obesity

storage temp.

2-8°C

SMILES string

C(C(CO)O)O

InChI

1S/C3H8O3/c4-1-3(6)2-5/h3-6H,1-2H2

InChI key

PEDCQBHIVMGVHV-UHFFFAOYSA-N

General description

The Free Glycerol Reagent provides a precise method for measuring free endogenous glycerol levels through coupled enzyme reactions, bypassing the need for initial lipase hydrolysis. Unlike triglycerides, which are typically bound to proteins and transported in plasma, free glycerol circulates independently. The innovative approach involves enzymatic or alkaline hydrolysis of triglycerides, liberating glycerol and free fatty acids for accurate measurement.

The Serum Triglyceride Determination Kit (Catalog Number TR0100) offers a comprehensive solution for assessing glycerol, true triglycerides, or total triglycerides in serum or plasma samples. Utilizing lipase enzymatic hydrolysis, triglycerides are converted into glycerol and free fatty acids, enabling precise quantification through coupled enzyme reactions by F6428.

Unlike many commercially available triglyceride reagents, this method distinguishes between endogenous glycerol and glycerol derived from lipase hydrolysis of glycerides. With this advanced technology, researchers can confidently analyze glycerol levels with exceptional accuracy and reliability.

Application

The Free Glycerol Reagent facilitates the quantitative enzymatic determination of glycerol levels in serum or plasma. Additionally, it may also be used to measure glycerol release from lipolysis in adipose tissue.

Biochem/physiol Actions

Glycerol undergoes phosphorylation through the enzymatic action of glycerol kinase (GK), utilizing adenosine-5′-triphosphate (ATP) to produce glycerol-1-phosphate (G-1-P) and adenosine-5′-diphosphate (ADP). Subsequently, glycerol-1-phosphate (G-1-P) is oxidized by glycerol phosphate oxidase (GPO) to yield dihydroxyacetone phosphate (DAP) and hydrogen peroxide (H2O2). This process involves peroxidase (POD), which catalyzes the coupling of hydrogen peroxide (H2O2) with 4-aminoantipyrine (4-AAP) and sodium N-ethyl-N-(3-sulfopropyl) m-anisidine (ESPA) to generate a quinoneimine dye exhibiting an absorbance maximum at 540 nm.The observed increase in absorbance at 540 nm correlates directly with the concentration of free glycerol present in the sample. This method provides a reliable means for quantifying free glycerol levels, enabling accurate assessment of biochemical samples.

Features and Benefits

  • Simplified Process: Streamline your workflow with a single reagent, offering a quick 5-minute reaction time.
  • User-Friendly Design: Eliminate the need for weighing or mixing multiple reagents, ensuring ease of use and efficiency.

Principle

The free glycerol reagent uses coupled enzyme reactions resulting in an increase in absorbance at 540 nm that is directly proportional to the glycerol concentration.

Linkage

In addition to kits, the individual reagents and glycerol standard are available separately when fewer reactions are needed.

Other Notes

For additional information on our range of Biochemicals, please complete this form.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Geonho Kim et al.
Journal of insect physiology, 106(Pt 1), 13-19 (2017-05-20)
Acetic acid is a fermentation product of many microorganisms, including some that inhabit the food and guts of Drosophila. Here, we investigated the effect of dietary acetic acid on oviposition and larval performance of Drosophila. At all concentrations tested (0.34-3.4%)
GIP receptor deletion in mice confers resistance to high-fat diet-induced obesity via alterations in energy expenditure and adipose tissue lipid metabolism
Boer GA, et al.
American Journal of Physiology. Endocrinology and Metabolism, 320, E835-E845 (2021)
Floriana Rotondo et al.
PeerJ, 4, e2725-e2725 (2016-12-06)
White adipose tissue (WAT) is a complex, diffuse, multifunctional organ which contains adipocytes, and a large proportion of fat, but also other cell types, active in defense, regeneration and signalling functions. Studies with adipocytes often require their isolation from WAT
Claire Regazzetti et al.
Diabetes, 58(1), 95-103 (2008-11-06)
Obesity is characterized by an overgrowth of adipose tissue that leads to the formation of hypoxic areas within this tissue. We investigated whether this phenomenon could be responsible for insulin resistance by studying the effect of hypoxia on the insulin
Adipocyte Gs but not Gi signaling regulates whole-body glucose homeostasis
Caron A, et al.
Molecular Metabolism, 27, 11-21 (2019)

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