NMKL 124: Determination and Analysis Methods of p-Hydroxy Benzoates in Foods

Food - Determination of p-Hydroxy Benzoates - HPLC-DAD Method - NMKL 124

What are p-Hydroxy Benzoates?

p-Hydroxy benzoates are usually found as ester derivatives such as methyl, ethyl, propyl and butyl paraben. Thanks to its antimicrobial properties;

• Drinks
• Jams
• Sweets
• They are used as preservatives in many food products such as bakery products.

These compounds are particularly effective in low pH foods and inhibit the growth of mold and yeasts.

What is the NMKL 124 Standard?

NMKL (Nordic Committee on Food Analysis) is an organization that provides standardization of methods used in food analysis. NMKL 124 is a specific analysis method for determining the amount of p-hydroxy benzoate esters present in foods. The main features of this standard are the following:

• Scope: Includes the determination of methyl, ethyl, propyl and butyl parabens.
• Analysis Technique: Sensitive determination by high performance liquid chromatography (HPLC).

Why Analyze p-Hydroxy Benzoates?

1. Legal Compliance: The amounts of preservatives used in foods are limited by legal regulations. Analysis is necessary to check compliance with these limits.
2. Consumer Safety: Excessive consumption of parabens can lead to allergic reactions and health problems. The analysis is done to prevent such risks.
3. Quality Control: Using the correct concentrations of parabens in the production process is important to maintain product quality.

Types and Uses of p-Hydroxy Benzoates

1. Methyl Paraben: The most commonly used form. It is especially preferred in beverages and jams.
2. Ethyl Paraben: Used in milk and dairy products and confectionery.
3. Propyl Paraben: Has a wider antimicrobial spectrum. Preferred in bakery products.
4. Butyl Paraben: Less common and generally used in cosmetics.

The NMKL 124 standard is a reliable method for the precise quantification of p-hydroxy benzoates in foods. Of great importance for consumer safety, legal compliance and product quality, this analysis is widely used in the modern food industry. With this type of analysis, manufacturers both make their products safe and comply with international standards.

Nano-lab Laboratories Group continues to provide services within the scope of Determination of p-Hydroxy Benzoates in Foods. We also provide services in Dioxin Analysis.

Contact us for more information.

You can follow us on LinkedIn for up-to-date news and posts about our services.

Follow our Instagram account to be informed about our latest blog posts.