MicroLub: How Protein-and-Water Microgels Could Cut Food Fat by Up to 75%

MicroLub is a University of Leeds deeptech spinout founded by Professor Anwesha Sarkar. It is developing patented protein-based ingredients that use water to reproduce a central job performed by fats and oils in food: lubrication. The goal is not simply to remove fat, but to retain the smooth, creamy and indulgent mouthfeel that makes reduced-fat and plant-based products difficult to formulate well.

The company has completed a $10 million (£7.5 million) funding round led by Northern Gritstone. It says the funding will support team growth, technology and manufacturing development, conversion of customer trials into commercial agreements, and expansion into the US and Asian markets. 210

The short version: replace fat’s function, not just its calories

Fat contributes more than calories to a recipe. It affects how food flows, coats the mouth and feels during eating. MicroLub’s approach is to create protein-and-water structures that act as microscopic lubricants, seeking to deliver a similar sensory effect with substantially less conventional fat. 15

That distinction matters for food manufacturers. A formulation can be nutritionally lower in fat yet still fail if it becomes dry, chalky, astringent or thin. Leeds research has identified low lubrication as a contributor to the dry, astringent experience often associated with plant proteins.

How MicroLub’s ingredient technology works

MicroLub’s platform is based on protein-and-water “scaffolds” or microgels coated with polysaccharides. These structures are designed to replace some of the lubrication and texture effects normally provided by fats and oils.

Rather than swapping fat for starches, gums or another fat, the company describes its mechanism as using water alongside proteins to mimic fat-like lubricity. Its own description frames the ingredients as microscopic lubricants that can tune friction in food and other consumer-product applications. 215

In practical formulation terms, the intended benefits include:

• reducing the amount of fat and oil needed;
• maintaining a smoother, creamier mouthfeel;
• increasing protein content in certain applications; and
• reducing reliance on emulsifiers and thickeners.

The technology is relevant to plant-based foods because alternative proteins can bring texture challenges. MicroLub’s founder has described the scaffolds as a way to replace the fats and oils often added to make plant-based products less astringent and more appealing.

What does the “up to 75%” claim mean?

MicroLub says its technology can reduce fat and calorie content by up to 75% in some applications, while maintaining expected mouthfeel and potentially increasing protein levels.

“Up to” is important. It is not evidence that every product can achieve a 75% reduction, nor that sensory performance will be identical in every recipe. The achievable reduction will depend on the food category, existing formulation, processing conditions and the sensory standard a manufacturer needs to meet. The company’s commercial challenge is therefore product-specific validation at manufacturing scale.

Why the platform targets a difficult gap in healthier food

Many reformulation strategies face a trade-off: lowering fat can reduce calories but also undermine the sensory qualities that lead consumers to repurchase a product. MicroLub is positioned around closing that gap by addressing texture and oral lubrication, rather than treating fat solely as an ingredient to eliminate. 2

This could be useful in reduced-fat, higher-protein and plant-based development where manufacturers want a simpler formulation and a more satisfying eating experience. The University of Leeds says the platform can reduce the need for emulsifiers and thickeners in some uses, which may also be relevant to cleaner-label product design.

The $10 million round and what comes next

Northern Gritstone led MicroLub’s $10 million financing. Existing investors participated, including NPIF II–PXN Equity Finance, managed by PXN Ventures as part of the Northern Powerhouse Investment Fund II. 2

According to reporting on the round, MicroLub intends to use the investment to expand its team and facilities, develop its technology, turn current customer trials into commercial agreements, and pursue growth in the US and Asia. 10

The company remains connected to its University of Leeds origins and is based at the Nexus innovation hub in Leeds. The university says MicroLub has moved from pilot production toward industrial manufacturing and is working with major food and ingredient companies. 10

What manufacturers should watch

MicroLub’s proposition is compelling because it addresses nutrition and sensory performance together. But commercial adoption will depend on evidence that the microgel ingredients can be manufactured consistently, integrated into real production lines and deliver the desired taste and texture in each target category.

For product developers, the useful question is not whether water can replace fat in the abstract. It is whether a specific formulation can meet its fat-reduction, protein, ingredient-list, cost, processing and consumer-acceptance targets at the same time. MicroLub’s new funding is aimed at generating that kind of commercial proof. 10