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Margarines and spreads contribute greatly to the intake of saturated and trans fats in the diet. Therefore, the objective of this work was to produce margarines using the oleogel technology and to verify the physical, thermal, oxidative, and sensorial properties of this product during six months of shelf life, comparing it with commercial margarine. When compared with commercial margarine, the oleogel margarine showed similar color results. Due to the different structural shape, the results of microstructure and the melting curve were differentiated, but this indicated a structure more resistant to temperature oscillations and an overall softer product. However, the sensorial difference between the samples was easily detected by the consumers, mainly with respect to the parameters of taste, texture, and overall impression. It was concluded that it is possible to produce margarines using the oleogel technology, which display good physical properties, similar shelf life, and improved nutritional characteristics.Keywords Oleogel Á Margarine Á Sensory Á Oxidative stability J Am Oil Chem Soc (2018) 95: 673-685. Material Raw MaterialsHOSO was provided by ChemyUnion S.A., Sorocaba, Brazil; interesterified fat (IF) TRI HW LT 2.5 (vegetable fat 674 J Am Oil Chem Soc J Am Oil Chem Soc (2018) 95: 673-685

Understanding the crystallization behavior of fats and oils is essential to ensure certain desirable characteristics in a given industrial application. In recent years, some advances in the structuring of lipid phases have enabled a direct influence on the food properties. The structuring mechanisms of lipid bases can be classified as either conventional or unconventional. Conventional crystallization mechanisms consist of nucleation, growth, and maturation of the crystals, thus resulting in a crystalline lattice. Co-crystallization or seeding agents and emerging technologies such as ultrasound can be used to aid in crystallization and improve the physical properties of fats and oils. Unconventional mechanisms bring organogel technology as a trend, which consists in the use of self-assembly agents to entrap the liquid oil, resulting in a structured gel network. In this chapter, the formation process of crystalline networks and gel networks will be presented in stages, highlighting the main differences related to the mechanisms of formation and stabilization of both types of networks.

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The need to reduce the amount of dietary saturated fatty acids (SFA), made the search for replacements for these fats a very important field for research. At the search for such replacements the organogel technology has shown great potential. This study had the objective of produce reduced SFA margarines using organogel technology to structure vegetable oils. A laboratory scale process (1kg batch) were performed the margarines were produced using 80% of lipid phase (LP) and their fatty acid composition, spreadability, hardness and thermal stability were evaluated and compared to commercial samples of margarines ranging from 70 to 82% (LP). A experimental design were used to achieve a product similar to the commercial product. Using the analysis of the response surfaces it was possible to observe that the measured spreadability ranged from 0.44 up to 11.12 kg.s for the tested margarines, and from 2.46 to 3.63 kg.s for the commercial samples respectively. 0.35 up to 7.37 kg from for the consistency (1.89 – 2.78 kg for commercial samples) and 1.23 up to 35.97 N for hardness (5.78 – 7.84 N for commercial samples), based on such results a optimized formulation were produced using soybean oil and high oleic sunflower oil to achieve the same properties as the commercial products. In conclusion, it was possible to produce margarines, using organogels for oil structuring.