Fructose Syrup
Fructose syrup is a liquid sweetener based on glucose and fructose obtained by enzymatic processing of starchy raw materials (typically corn starch). It is characterized by a clear to slightly yellow appearance, viscous consistency, and pronounced sweetness, often higher than sucrose depending on fructose content. It acts as a multifunctional ingredient providing sweetness, influencing texture, moisture, stability, and freezing behavior of products, and, due to its liquid form, it is suitable for continuous industrial processes.
Source
Fructose syrup is produced from:
- starch (mainly corn, sometimes wheat or potato),
through the following steps:
- enzymatic hydrolysis of starch to glucose syrup,
- enzymatic isomerization of part of the glucose into fructose (glucose isomerase),
- purification, decolorization, and concentration to the desired solids content.
The resulting syrup contains a mixture of glucose and fructose with a defined fructose content (e.g. 42%, 55%), which determines sweetness and technological properties.
Variations
Fructose syrups differ by:
- fructose percentage (low, medium, and high fructose syrups),
- degree of purification (standard, highly refined),
- viscosity and solids content.
They can be used as stand-alone products or as part of sweetening systems with sucrose, glucose syrup, or other sweeteners.
Applications In The Food Industry
Beverage Industry
In beverage production, fructose syrup is used for:
- carbonated and still soft drinks,
- fruit juices, nectars, and refreshing beverages,
- energy and functional drinks.
It provides good solubility, easy handling in dosing systems, and high sweetness with controlled acidity and flavor.
Confectionery Industry
In confectionery, fructose syrup contributes to:
- elasticity and chewiness in gummy and jelly candies,
- sugar crystallization control in caramels and toppings,
- moisture retention and softness in soft candies and fillings.
It helps reduce sugar bloom risk and extend product freshness.
Bakery Industry
In bakery products, fructose syrup is used for:
- sweet pastries, cakes, and fillings,
- toppings and glazes,
- industrial bakery premixes.
It improves moisture retention, contributes to crust color (Maillard reactions), and extends product softness and freshness.
Frozen Foods Industry
In frozen desserts and ready products, fructose syrup:
- affects freezing point (softer ice creams and sorbets),
- reduces formation of large ice crystals,
- preserves smooth texture and sweetness during storage.
It is especially important in ice cream and frozen dessert formulations.
Benefits Of Use
- high sweetness with excellent solubility and easy dosing
- role in crystallization control and texture in confectionery and bakery products
- contribution to moisture retention, softness, and product stability
- influence on freezing point and texture of frozen products
- suitable for automated processing due to liquid form
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