Reduction of oil syneresis in nut butters

Oil syneresis impairs the quality of nut butters

Hazelnuts, almonds and cashews are of crucial importance for the production of high-quality nut creams and nut butters. These products are indispensable ingredients for the chocolate, baked goods and spreads industries. On the consumer market, however, nut butters and nut creams are still a niche product that has to impress with special quality features.

One of the biggest challenges in the production of nut butters is the phenomenon known as oil syneresis, in which the oil settles on the surface of the product. The effect is influenced by the properties of the raw materials, their ageing and by thermal and mechanical processing steps. The result is a negative impact on visual and sensory quality as well as marketability and consumer acceptance. A reduction in oil syneresis leads to a more stable, more appealing consistency and a better product experience.

NMR detects oil syneresis at an early stage

In order to better understand and specifically reduce oil syneresis, our project relies on a combination of proven and new analytical methods. One particular aim is to develop a robust, easy-to-use NMR (Nuclear Magnetic Resonance) method that is particularly suitable for quality control (QC). Low-field NMR technology enables the detection of oil syneresis even before it is visible, so that measures to optimize the formulation or processing can be initiated at an early stage.

For small and medium-sized enterprises (SMEs) that want to survive in a highly competitive market, such innovations are of crucial importance. The production of nut butters and nut creams requires in-depth knowledge of the raw materials and precise control of the thermal and mechanical process steps. An in-depth understanding of oil syneresis processes enables SMEs to develop more efficient recipes, optimize production processes and improve storage stability. This leads to a reduction in time and costs in product development and an increase in competitiveness through higher quality, innovative products with clear added value for the customer.