Progoitrin (glucosinolate) dosage

Progoitrin is a natural glucosinolate found in plants of the Brassicaceae , particularly in rapeseed ( Brassica napus , and turnip seeds. These sulfur compounds play a key role in the plants' natural defense against insects and pathogens. However, excessive progoitrin levels can pose a health risk, notably by impairing thyroid function through inhibition of hormone synthesis.
In the nutraceutical and food , progoitrin analysis is an essential step to ensure the safety , quality , and standardization of plant-based raw materials and functional extracts. This analysis allows for verification of the conformity of finished products and ensures the safety of formulations intended for human or animal consumption.

Analytical methods used

The analysis of progoitrin relies on high-precision chromatographic techniques, adapted to the detection of sulfur compounds present at low concentrations:

• HPLC (High Performance Liquid Chromatography) : this method, coupled with UV detection, allows for the separation and quantification of glucosinolates.
• LC-MS/MS (Liquid Chromatography coupled with Tandem Mass Spectrometry) : this approach offers high specificity and sensitivity , allowing the detection of progoitrin in trace amounts, even in complex matrices.

These techniques, widely used in YesWeLab's partner laboratories, guarantee reproducible , traceable that comply with the most demanding analytical standards.
To learn more about chromatographic principles, see also the page dedicated to high-performance liquid chromatography (HPLC) .

Matrices involved

Progoitrin assay can be applied to many matrices derived from plants rich in glucosinolates:

• Rapeseed, mustard or turnip seeds.
• Rapeseed meal obtained from the crushing of oilseeds.
• Standardized or concentrated plant extracts.
• Finished products for nutraceutical or functional food .

These analyses make it possible to monitor the concentration of progoitrin throughout the transformation chain, from raw material to finished product, guaranteeing consistent quality.

Industrial and scientific applications

Progoitrin analysis is of strategic importance in several industrial contexts:

• Food and nutritional safety : monitoring of goitrogenic compound levels to avoid any toxic risk.
• Animal nutrition : monitoring of glucosinolates in rapeseed meal, in order to guarantee safe formulations for livestock.
• Standardization of plant extracts : essential for the production of food supplements based on Brassicaceae.
• Plant research and innovation : studies on the biosynthesis of glucosinolates, their biological role and the selection of low-content varieties.

This analytical approach is often integrated into a more comprehensive program for evaluating phytochemical compounds, combined with other analyses such as the determination of total glucosinolates , the determination of goitrin or the determination of total polyphenols to characterize the associated antioxidant properties.

Regulations and compliance issues

Progoitrin control is subject to strict regulations. Glucosinolates are subject to recommended limits for plant-based foods and products intended for animal feed.
Excessive concentrations can impair digestibility, nutritional value, or the safety of formulations. The analyses performed therefore allow us to:

• Demonstrate the regulatory compliance of raw materials.
• To guarantee traceability and transparency to consumers.
• To meet the requirements of specifications in nutrition, nutraceuticals and phytotherapy.

In a market where naturalness, quality and safety are major differentiating criteria, control of progoitrin content is a strategic advantage for manufacturers.

YesWeLab's expertise

YesWeLab relies on a network of rigorously selected partner laboratories , accredited to ISO 17025 and/or COFRAC standards, guaranteeing reliable and compliant analytical services. Our experts support you in:

• Choosing the method best suited to your matrix (HPLC, LC-MS/MS).
• Interpretation of results and validation of regulatory thresholds.
• Integrating these analyses into your quality control protocols or R&D studies .

Thanks to its digital platform , YesWeLab facilitates the complete management of your analyses: requesting quotes, tracking samples and consulting results online.

For any specific request or research project, contact our scientific team to benefit from tailored support in the measurement of progoitrin and other glucosinolates.