As health concerns mount over children’s diets and their sugar intake, stevia is taking a lead role in sugar reduction efforts for confectionery products
Sugary products can have an irresistible charm with children, but rising trends in tooth decay, weight gain, and chronic metabolic diseases such as diabetes have been alarming many parents and consumers. So it’s no surprise that food manufacturers have been looking at ways to reduce sugar in candies and snack foods marketed towards children. In addition, the issue has certainly caught the attention of policymakers, who have proposed regulations such as restricting the sale of sugary drinks and snacks in primary and secondary schools as well as other childcare institutions. Similarly, canteens and cafeterias are implementing measures to reduce the amount of sugar in lunches and meals provided by schools.
Reducing sugar is a top concern for consumers
The concerns around children’s diets is part of a larger trend — consumers of all ages are taking greater care with managing sugar in their diets. This need for health-promoting ingredients and nutritional foods is changing the face of product innovation for the confectionery industry in particular. In recent years, many of the newest product launches in confections have embraced the use of sugar substitutes such as stevia. As confectionery manufacturers are pressured and compelled to innovate, they’re finding however that reducing the need for added sugars in such products can come with some formulation challenges.
The challenge of reducing sugar in candy
When reformulating a candy product for sugar reduction, the two most important considerations are replicating the sweetness profile of sugar and bulking the candy back to its original size. For both these considerations, the use of sugar substitutes is needed. Natural plant sources, such as stevia and monk fruit, or artificial sweeteners such as aspartame, acesulfame potassium, or sucralose, can be used. Common bulking agents that are used with plant-based sources include erythritol, allulose, fiber, and maltodextrin. Artificial bulking agents include maltitol, xylitol, sorbitol, and polydextrose. Among such a wide array of sweetener options, stevia has garnered significant attention because it is natural, has zero calories, and can be 200 – 450 times sweeter than sugar. As a result, more and more candy products containing stevia have been launching in the marketplace.
In addition to replicating sweetness levels, a common challenge with reducing sugar in confectionery is retaining the texture, flavor, taste, and other properties of the candy’s formula. For example, in a traditional gummy candy, sugar plays a number of roles beyond its sweetness. It increases the volume of the candy, creates a soft texture, and also positively affects the chew time of the candy. If you merely replace the sugar content, many of the qualities of that candy would change with it.
Case Study: Formulating with stevia in a nougat
Recently, HOWTIAN’s comprehensive sugar reduction program with stevia helped Zero Sense Labs successfully launch a sugar-free nougat series of candies. This nougat comes in 4 flavors — matcha, date, sesame, and strawberry.
The nougats carry a product label with low calorie, no added sugar, and low glycemic index claims. The candy line was able to achieve these claims by utilizing our SoPure Stevia specialty blend called Pegasus II, which contains minor glycosides that taste better than typical Reb A (see our previous edition of Formulas For Success to learn more about formulating with our SoPure Stevia specialty blends). To complement and supplement stevia in the formula, additional sweetness and bulking is provided by maltitol and inulin. This combination provides the texture and chewiness that is typically desired in a nougat.
Formulating with Maltitol
Maltitol is one of the most commonly used sugar alcohols in food and is about 70% as sweet as sugar. It has about half the calories of sugar and provides many similar properties. Since some maltitol is digested, the gastrointestinal effect isn’t as extreme when compared to other sugar alcohols. An average person may be okay with up to 40g in a serving before experiencing digestive discomfort. It is, however, produced by the hydrogenation of starch, which would then be considered an artificial sweetener.
Formulating with Inulin
Inulin is a fiber and is about 30% as sweet as sugar. However, inulin is currently in short supply so it may be prudent to ensure you’ve secured a stable supplier before committing to this ingredient in your formulation. The most common form of inulin is made from chicory root and a second is derived from Jerusalem artichoke. Since it is a fiber, ingesting above about 10g in a dose may cause digestive distress. Inulin does provide some browning and helps with digestion, when not consumed at too high of a level. The calories for inulin are about 1.5 per gram, so they are a little lower than maltitol.
Formulating with Trehalose
Before its reformulation, the nougat confection was sweetened using trehalose, which is a rare sugar that is about 25-45% as sweet as sugar. However, trehalose hardens over the shelf life of the product. It can change the chewy and sticky texture you want in a nougat to a more brittle consistency which may cause the candy to crack.
Trehalose is typically produced enzymatically from corn starch and naturally occurs in mushrooms, crustaceans, sunflower seeds, and breads at low levels. It currently counts as a sugar and can be labelled as a natural flavor at low use levels in countries that follow FEMA. For example, in beverages, these use levels can be under 3.5% per the guidance from FEMA 4600.
Trehalose doesn’t brown when baked and is stable at high temperatures and acidic conditions. While it doesn’t work as well in this nougat or a taffy application, it could be utilized used in other candy formulas or many formulas in need of sugar replacement.
If you need help with reformulating for a sugar reduction or replacement, HOWTIAN application engineers are available to help meet your sugar reduction challenges. We can assist in developing a customized sugar reduction strategy for your product(s) with cost-effective solutions and reliable supply. Please contact us to learn more.