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Thermostable alpha amylase
Release date：
2025-07-21
Heat-stable Alpha-Amylase TH-0400 is produced from selected strains of Bacillus licheniformis through submerged fermentation, extraction and refining process. It is an endoamylase that can efficiently decrease viscosity of gelatinous starch solutions by randomly hydrolyzing starch, glycogen and its degradation products within the alpha-D-1 glycosidic bonds and produce soluble dextrins and oligosaccharides under high temperature and low pH conditions.
TH-0400 has an excellent heat resistance and a wide pH range. It is suitable for desizing of textile fabrics such as cotton, silk, polyvinyl alcohol fibers, rayon fibers, blended fabrics, dyed poplin, etc.
Product Characteristics
| Declared Enzyme: | Alpha-Amylase |
| Systematic Name: | EC 3.2.1.1, 1, 4-alpha-D-glucan 4-glucanohydrolase |
| Activity: | 40,000 U/ml (minimum) |
| Appearance: | Light ivory Powder |
Effect of pH
TH-0400 is active over a wide pH range, depending on the application conditions.The optimal pH is 5.4 to 6.4.
Effect of Temperature
Optimum temperature of TH-0400 for interval liquefaction is above 77°C. It liquefies starch substrates promptly at 83 to 90°C and demonstrates exceptional thermal stability at 100 °C. The exact temperature optimum depends on actual processing conditions, such as pH, concentration of substrate and time.
Concentration of Calcium
The presence of calcium increases the thermal stability of this enzyme. It requires a very low calcium concentration, i.e. 5 to 20 ppm will be sufficient to ensure its thermal stability.
Inhibitors
Copper, titanium, and cobalt ions are moderate inhibitors for TH-0400, whereas aluminum, lead and zinc ions act as strong inhibitors.
Benefits
Use of TH-0400 in desizing of textiles can ensure the following benefits:
1) Enable desizing and colour-fixing at the same bath, thus shorten process flow and improve productivity
2) Enhanced capillary tube effect of fabrics
3) Improved working conditions for operators
4) Less dosage level and reduced processing costs
A standout feature is its calcium-independent stability, reducing dependency on additives and simplifying process formulations. Compatible with jet-cooking systems, it integrates seamlessly into existing infrastructure. The enzyme is produced under strict quality controls, with low microbial counts and high purity to meet food-grade and industrial standards (FCC, ISO).
Sustainability is another hallmark—its efficiency cuts steam and water usage, aligning with green manufacturing goals. Available in liquid or granular forms, it offers flexibility for diverse applications. For industries seeking to optimize starch conversion with reliability and cost-effectiveness, thermostable alpha amylase sets the benchmark—where cutting-edge enzymology meets real-world productivity.
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