ArticleACS measurement science au2026
A Single-Enzyme Electrochemical Biosensor for Lactose Detection in Human Breastmilk and Dairy Products.
Article in ACS measurement science au, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Lactose, a disaccharide found predominantly in human breast milk and dairy products, plays a vital role in human health and nutrition. While lactose is an essential energy source particularly for infant growth, it is also a biomarker of low milk production in breastfeeding women. Furthermore, lactose intolerance affects a substantial portion of the global population, impacting the quality of life. Therefore, the ability to detect and quantify lactose is important as a biomarker for both milk production and nutritional content. Here, we report on the development of a single-enzyme electrochemical biosensor for lactose employing lactose oxidase (LOx), which converts lactose to lactobionic acid and hydrogen peroxide. The sensor showed high specificity, achieving a limit of detection of 1.4 μM. The analytical performance of the sensor was verified in human breast milk as well as bovine milk. This approach allows for a rapid, reliable, and potentially portable platform for lactose detection, making it ideal for both clinical applications and routine controls in the food industry.
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