Human Milk Oligosaccharides (HMOs) Testing

At Alfa Chemistry, we specialize in advanced analytical solutions that support innovation, quality, and regulatory compliance in the global food industry. One of our core expertise areas is human milk oligosaccharides (HMOs) testing, a rapidly growing field driven by scientific advances in infant nutrition and increasing regulatory attention worldwide.

What are human milk oligosaccharides?

HMOs are complex carbohydrates naturally present in human breast milk and represent the third most abundant solid component after lactose and lipids. Unlike conventional nutrients, HMOs are not directly digested by infants. Instead, they play crucial functional roles in early-life development. Key physiological functions of HMOs include:

• Supporting the development of a healthy gut microbiota, particularly beneficial bifidobacteria
• Contributing to immune system modulation
• Acting as decoy receptors to prevent pathogen adhesion
• Supporting intestinal barrier function and cognitive development

More than 200 structurally distinct HMOs have been identified in human milk. However, due to technological and regulatory considerations, only a limited number are currently approved and commonly added to infant formula and specialized nutritional products.

HMOs in infant formula: global regulatory landscape

The incorporation of HMOs into infant and young child nutrition products has gained widespread acceptance, although regulatory frameworks differ across countries and regions.

• European Union (EU): The EU was among the earliest regions to authorize specific HMOs as novel food ingredients in infant formula. HMOs such as 2'-FL and LNnT are approved for use in infant formula, follow-on formula, and foods for special medical purposes, provided they meet purity, safety, and labeling requirements.
• United States: In the U.S., several HMOs have been recognized as GRAS (Generally Recognized As Safe) for use in infant formula and other nutritional products. Regulatory evaluation focuses on manufacturing processes, compositional equivalence to naturally occurring HMOs, and safety data.
• China: China has progressively expanded its regulatory framework for HMOs in infant formula. Approved HMOs are subject to strict registration, formulation limits, and analytical verification. Accurate testing is essential to support product registration, compliance, and post-market surveillance.
• Asia-Pacific and Other Regions: Countries in Asia-Pacific, the Middle East, and Latin America are actively updating standards for HMOs in infant and special dietary foods. While approval status and permitted types vary, there is a clear trend toward harmonization with international safety and quality benchmarks.

Across all regions, reliable HMOs testing is critical to ensure regulatory compliance, product consistency, and consumer trust.

We provide comprehensive and accurate quantitative determination of HMOs in a wide range of food matrices, including:

• Infant formula and follow-on formula
• Modified milk powders
• Foods for special medical purposes (FSMP)
• Special dietary and functional nutrition products

We currently offer validated analytical testing for the following seven key HMOs:

These HMOs represent the most commonly approved and commercially relevant structures in today's infant and specialized nutrition market.

Our methods are optimized for complex matrices, ensuring high specificity and accuracy even in products containing proteins, fats, minerals, vitamins, and other carbohydrates.

Our advanced analytical technologies for HMOs testing

HMOs testing play a pivotal role in the development and regulation of modern infant and specialized nutrition products. As regulatory frameworks evolve and scientific understanding deepens, accurate and reliable analytical testing becomes indispensable. With advanced techniques such as HILIC and HPLC-MS/MS and the capability to quantify several key HMOs, Alfa Chemistry stands as a trusted partner in the global food analysis and testing landscape. We are committed to supporting our clients in delivering safe, compliant, and scientifically substantiated nutrition products to the market.