Tryptophol dosage

Tryptophol assays aim to quantify this metabolite of tryptophan , an indole alcohol naturally present in certain plants, yeasts, and fermented products (such as wine, beer, or kefir).
A bioactive molecule of increasing interest, tryptophol is being studied for its sedative, antioxidant, and neuroactive properties , as well as for its potential role in microbial cell communication and fermentation processes .

The analysis is based on high-resolution chromatographic separation ( HPLC or LC-MS/MS ), allowing for precise identification and quantification even at low concentrations.

Analytical methods and protocols

The quantification of tryptophol is carried out using validated chromatographic methods, adapted to the matrix studied (fermented liquids, plant extracts, nutraceutical powders, etc.).

• HPLC-DAD : detection of tryptophol in the UV, often around 280 nm.
• LC-MS/MS : specific identification of tryptophol and its derivatives (such as 5-hydroxytryptophol), with a very low detection limit.

The parameters measured include:

• The tryptophol concentration (mg/kg or µg/mL),
• The metabolic profile (tryptophan, indole-3-acetaldehyde, indole-3-acetic acid),
• The stability of the compound under storage conditions.

The methods are often based on internal protocols inspired by scientific literature pharmacopoeia guidelines for plant extracts.

Industrial and scientific applications

Tryptophol measurement is used in many fields:

• Nutraceuticals : standardization of plant extracts rich in tryptophan derivatives, formulation of supplements promoting sleep or relaxation.
• Food processing and oenology : control of fermentation and monitoring of aromatic compounds in fermented beverages (wine, beer, kombucha).
• Biochemical research : study of tryptophan metabolism and associated indole pathways.
• Cosmetics : exploring its antioxidant and soothing properties in natural formulas.

This analysis makes it possible to characterize the purity and biochemical quality of the extracts , while guaranteeing their analytical traceability .

Matrices involved

• Plant extracts rich in indole derivatives
• Fermented beverages (wines, beers, kefirs, kombucha),
• Dietary supplements or nutraceuticals based on tryptophan,
• Biological or fermentation samples for R&D purposes.

Further analyses recommended

For an in-depth study of tryptophan metabolism and its derivatives, YesWeLab recommends combining this analysis with:

• Tryptophan dosage , an amino acid precursor of tryptophan,
• Tryptamine assay , a structurally similar bioactive molecule,
• Serotonin assay , a product of tryptophan transformation in the serotonergic metabolic pathway,
• Melatonin measurement to assess final conversion in the sleep pathway.

YesWeLab's expertise

YesWeLab relies on a network of ISO 17025 and COFRAC accredited laboratories , experts in chromatographic analysis of natural bioactive compounds .
Our teams support nutraceutical, research, and food industry companies in the molecular characterization and analytical validation of their products.

Thanks to the YesWeLab digital platform , you can:

• Order and track your analyses online,
• Access your centralized analytical reports,
• Compare your production batches to ensure the consistency of your formulas.