Page 52 - FoodFocusThailand No.232 July 2025
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STRA
            STRATEGIC R & DTEGIC R & D













            The Challenges of Reducing Fat


            in Mayonnaise and Salad Dressing



            Mayonnaise and salad dressing are the most popular seasonings and well-established condiments used
            to enhance the flavor and texture of various dishes. However, these products are traditionally high in fat
            and calories due to their significant oil content. While using small amounts of dressing as a topping may be
            appropriate, excessive use can lead to exceeding daily calorie needs and potentially contribute to weight gain.



               According to the National Health and Nutrition Examination   as well as combinations of both . Carbohydrate-based fat
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            Survey (2017–2020), 42% of U.S. adults aged 20 years and older   substitutes are compounds derived from cereals, legumes, and
            are classified as obese . In response to rising obesity rates, the   plants  with  digestible  or  indigestible  carbohydrates.  One
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            Dietary Guidelines for Americans recommend the consumption   example is corn dextrin (CD), a fat replacer used in reduced-fat
            of low-fat and non-fat foods to promote healthier dietary habits.   mayonnaise,  which  is  derived  from  partially  hydrolyzed
            One key strategy for effective weight management is reducing   cornstarch. Research has demonstrated that firmness increases
            calorie intake by lowering the consumption of saturated fat.   proportionally with corn dextrin concentration, enhancing its
            Consequently, the food industry faces significant challenges in   effectiveness in low-fat formulations .
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            developing low-fat and low-cholesterol mayonnaise and salad   On the other hand, proteins with unique structures and
            dressings that maintain the desirable attributes of their full-fat   functional properties—particularly gelatin and whey protein—are
            counterparts.                                        frequently credited as the foundation of fat substitutes. These
                                                                 proteins enhance nutritional value while maintaining a low-
            Texture-Enhancing Ingredients for Low-fat            calorie profile. A study investigating nano-formulated soy
            Salad Dressings and Mayonnaise                       proteins as fat replacers revealed that low-fat mayonnaise
            In the development of low-fat salad dressings or mayonnaise,   containing 0.5% nano soy protein isolate and glycinin achieved
            the stability of the emulsification system—as well as taste, flavor,   higher overall sensory acceptability compared to both market
            and texture—is often affected. Thanks to advances in functional   and control formulations . Additionally, protein-polysaccharide
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            ingredients, innovative food thickeners and stabilizers can provide   nanoparticles improved appearance, texture, and mouthfeel,
            long-term emulsion stability by thickening the food system and   offering promising applications in food system innovation.
            forming a viscous, ordered network in the continuous phase to   One  of  the  critical  challenges  in  low-fat  mayonnaise
            prevent oil separation. According to a recent study on the stability   formulation is achieving the expected color and visual appeal.
            and texture of soybean-oil-body-substituted low-fat mayonnaise²,   Consumers generally anticipate a white, creamy, or slightly
            polymers such as xanthan gum, pectin, and modified starch have   yellowish appearance that closely resembles traditional full-fat
            shown potential as stabilizing agents in emulsification systems.   mayonnaise. However, reducing the oil content in emulsion
            They  enhance  emulsion  stability  by  promoting  depletion   affects its opacity, resulting in a less white and more translucent
            flocculation and reducing the movement speed of oil droplets in   appearance, which may influence consumer perception. To
            the products.                                        address this issue and preserve the familiar appearance of
               The study found that a ratio of 2:1:1 of xanthan gum, pectin,   full-fat mayonnaise, coloring agents can be incorporated into
            and modified starch resulted in optimal stability, excellent texture   low-fat formulations. Titanium dioxide and beta-carotene are
            properties, and delayed lipid oxidation. Moreover, extensive   commonly  used  to  enhance  whiteness  and  yellowness,
            research has identified inulin as a valuable component in the   respectively.
            formulation of low-fat food products . As a natural polysaccharide   In summary, it is possible to develop well-accepted low-fat
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            and dietary fiber, inulin has been widely studied for its ability to   salad dressings or mayonnaises using ingredients that help
            enhance emulsion stability in various food systems. Studies have   stabilize emulsification while maintaining texture and taste.
            shown that inulin concentrations of 15% or higher can provide   There are also promising alternative approaches for the growing
            stabilizing  effects  comparable  to  full-fat  salad  dressings,   health and wellness community. However, the shelf life of
            reinforcing its potential as an effective fat substitute in emulsified   products containing oil substitutes should be closely examined,
            formulations.                                        as their deterioration patterns often differ from those of full-fat
               In order to maintain the distinctive taste and creamy texture   counterparts.
            that salad dressing and mayonnaise are acclaimed for worldwide.
            The food industry is exploring diverse fat substitute options—
            including carbohydrate-based and protein-based alternatives,
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            52   FOOD FOCUS THAILAND  JUL  2025


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