How is commercial glucose prepared from starch?

Commercial glucose is produced from starch through a process of hydrolysis, which breaks down the complex polysaccharide molecules into their constituent glucose units.12

The manufacturing process typically involves the following steps:

• Preparation: Starch is separated from sources such as corn, wheat, or potatoes through wet milling or grinding.12
• Conversion: The starch is formed into a slurry and heated in pressure tanks. To facilitate the breakdown of the starch, either acids or enzymes are added.13
• Refining: The mixture undergoes refining processes to achieve the desired level of conversion. While partial conversion results in corn syrup or dextrins, full conversion is required to produce glucose or dextrose.1
• Full Conversion: To achieve high-purity glucose (often measured by dextrose equivalents, or D.E.), the process typically uses acids to liquefy the starch, followed by the addition of saccharifying enzymes to complete the transformation into dextrose.1

Modern production often utilizes continuous processes to ensure consistent quality for use in food and confectionery products.1