Professor University of Saskatchewan Saskatoon, Saskatchewan, Canada
Abstract: Whipped cream is a crowd favorite as a dessert topping, but many whoare lactose intolerant or allergic to dairy proteins may not enjoy this fluffy treat. A high-fat emulsion containingcoconut oil is a solution that has been explored within the food industry. It is common for these products to includea large amount of gums and synthetic emulsifiers to obtain the desired fluffy texture. This study aims toevaluate the effects of two types of phospholipids on a high-fat oil-in-water cream emulsion stabilized with faba bean protein. Cream emulsionscomposed offaba bean protein, canola oil and coconut oil,each containinga different type of phospholipid,wereprepared using a high-pressure homogenizer. One phospholipidcontained a higher amount of phosphatidylcholine (PC),while the other contained a higher amount of phosphatidylinositol (PI). The p</span>rotein displacement by thephospholipid in the emulsions was evaluated using interfacialtension and protein quantification in the separated aqueous phases of the cream emulsions. Although both emulsion variations resulted in stable cream emulsion, PI had the most significant effect on protein displacement. The cream emulsions were then stored at 4ºC for several days before being whipped using a kitchen-grade automatic mixer. Compared to dairy cream, theplant-based cream emulsions displayed many similarities, such as the whipping time to reach peak overrun and doubling the volume due to the incorporated air.Additionally, the whipped emulsion was quite stable at peak whipping time, being able to hold its own shape once manipulated: an important whipping cream characteristic.This study shows that plant-based cream emulsions may be just as functional as their dairy counterpart without the need for the addition of food gums, thickeners or synthetic emulsifiers.