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Application of oleogel and conventional fats for obtaining vegan creams

 

Polish Researchers published in the Journal of Oleo Science a study with the aim to determine the impact of the fat system type (milk fat – MF, palm oil – PO or oleogel – OG, i.e. RO-LO – rapeseed oil and linseed oil mixture structured by candelilla wax) on the properties of soy creams, in comparison with dairy cream. 

The MF exhibited the most increase of acid value (2.5-fold), and the RO-LO – increase of peroxide value (3-fold), after 30 days of storage at 20degreeC. The PO was the most oxidative stable. The OG presented the slightest oxidative changes, the highest slip melting point (39degreeC) and centrifugal stability (99.6%). The pH and total acidity values of soy creams were similar to soy drink. All creams exhibited unimodal distribution of dispersed particles. The average particle size and dispersity indexes of these emulsions were in range of 1.74-1.80 microm and 0.93-1.16, respectively. The creams with MF or OG exhibited a greater viscosity than sweet dairy cream – 1.66 10-5 nm-2, and a higher degree of shear-thinning. The accelerated creaming phenomenon (flotation of lipids molecules) occurred during centrifugation. The cream with PO had the lowest resistance to centrifugal force (instability index – 0.052). The possibility to obtain a stable vegan soy creams containing oleogel (as replacer of conventional fats) has been demonstrated.

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