The effect of cold-pressed SOYLEIC™ soybean oil (SOYLEIC) on the physical and sensory properties of soy-based ice cream was compared to commercial vegetable oil (COM-VO), commercial high oleic soybean oil (COM-HO), and heavy cream (CREAM). Fat sources had no significant effect on viscosity and fat globule size distribution of ice cream mixes. Ice cream made with COM-VO had the lowest overrun (p < 0.05) and higher degree of fat destabilization; however, no difference in hardness was found. Despite similar melting rate, the shape retention behavior during melting was different for SOYLEIC, COM-VO, and COM-HO compared to CREAM. No significant differences were found in texture attributes except mouth coating, which was higher for CREAM than COM-HO and SOYLEIC (p < 0.05). There was no significant difference in flavor attributes between SOYLEIC and CREAM, while COM-VO and COM-HO had higher off-flavor intensities (p < 0.05). Consumer acceptability results revealed that SOYLEIC and CREAM had significantly higher flavor liking and overall liking scores than COM-VO and COM-HO (p < 0.05). SOYLEIC and CREAM also had higher texture liking than COM-VO (p < 0.05). Overall, liking had the highest positive significant correlation with flavor liking (r = 0.996). PRACTICAL APPLICATION: Cold-pressed HOLL soybean oil has the potential to be used in formulating plant-based frozen desserts with equivalent texture but more acceptable flavor.
Keywords: SOYLEIC™; cold-pressed oil; high oleic soybean oil; plant-based ice cream.
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