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Solid Food Xylanase

Updated: 2026-07-15

Overview

Solid food xylanase is an enzyme that hydrolyzes xylan, a major component of hemicellulose in plant cell walls. Derived from microbial fermentation (e.g., Aspergillus or Trichoderma species), it is widely used in the food industry to modify texture, increase yield, and reduce processing time. Unlike chemical additives, xylanase operates under mild conditions, aligning with clean-label trends. Its specificity for xylan chains makes it ideal for breaking down complex carbohydrates without affecting other food components. The enzyme is typically standardized by activity units (U/g) and sold as a dry powder for easy integration into solid food matrices.

Physical and Chemical Properties

Solid food xylanase exhibits optimal activity at temperatures of 40-60°C and a slightly acidic pH (4.5-6.5), though these ranges vary by microbial source. The enzyme loses activity rapidly above 70°C due to protein denaturation. It is water-soluble and often stabilized with carriers like maltodextrin in commercial formulations. Storage stability is critical; exposure to humidity or heat can degrade activity. Lyophilized forms retain potency longer. Analytical methods like DNS assay or HPLC are used to measure activity and purity, ensuring consistency for industrial applications.

Main Applications

In baking, xylanase improves dough elasticity and volume by hydrolyzing arabinoxylan in flour, reducing water absorption and mixing time. It enhances crumb structure and shelf life in bread and pastries. Brewers use it to clarify wort by degrading residual xylans, preventing haze formation in beer. Animal feed producers incorporate xylanase to break down non-starch polysaccharides in grains, boosting nutrient absorption and reducing feed viscosity. This application is particularly valuable in poultry and swine diets, improving growth efficiency and lowering waste output.

Safety and Storage

Xylanase is generally recognized as safe (GRAS) by regulatory bodies when used as directed. However, inhalation of powdered forms may irritate respiratory tracts, necessitating masks and ventilation during handling. Skin contact should be minimized with gloves. For storage, keep containers tightly sealed in a cool, dry environment. Refrigeration (2-8°C) is recommended for long-term preservation, though some stabilized variants tolerate room temperature for short periods. Always check activity post-storage for critical applications.

B2B Procurement Guide

When sourcing solid food xylanase, prioritize suppliers with certifications like ISO 22000 or FSSC 22000 to ensure food safety compliance. Key specifications include activity level (e.g., 10,000 U/g), microbial source (fungal xylanases often preferred for pH stability), and absence of allergens or contaminants. Request batch-specific Certificates of Analysis (CoA) for activity and purity. Bulk purchases (25 kg drums) typically offer cost savings, but confirm lead times and cold-chain logistics for temperature-sensitive shipments. Sample testing in your production process is advisable to validate performance.

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