Catalase for Peroxide Removal at Working Temperatures
Control residual hydrogen peroxide in production lines with catalase enzyme performance designed for textile, dairy, paper, and wastewater operations.
Residual hydrogen peroxide is a common production problem: it can bleach dyes, suppress starter cultures, raise COD, and leave unwanted oxidant in finished process streams. For procurement teams and technical buyers, the challenge is finding a catalase enzyme that delivers reliable peroxide decomposition across the plant’s actual operating temperature, pH, and residence-time window. Catalase (EC 1.11.1.6) converts hydrogen peroxide into water and oxygen, making it a practical cleanup step after bleaching, cold pasteurization, sanitization, and peroxide-assisted washing. In industrial use, catalase function depends on both activity and temperature: too little activity leaves residual peroxide, while poor thermal fit can reduce conversion efficiency and increase dose. This catalase enzyme, sourced from Aspergillus niger / Micrococcus lysodeikticus, is specified for broad process compatibility, with activity levels of 50,000–200,000 U/g suited to batch or continuous systems and performance around neutral to mildly alkaline conditions. Typical applications include textile bleach cleanup before dyeing, dairy and cheese processing before culture addition, pulp and paper peroxide removal, egg and food-contact sanitation rinse-downs, and wastewater pretreatment before biological treatment. If your line depends on predictable peroxide elimination, enzyme selection should start with the process temperature, target residual peroxide, and required contact time. The right catalase enzyme helps reduce chemical reducing agents, protect downstream biology, and simplify compliance while keeping the line moving.
Textile bleach cleanup before dyeing
Residual hydrogen peroxide after bleaching can cause shade loss, poor uptake, and rework in downstream dye baths. Catalase enzyme is used as a fast cleanup step to decompose peroxide before dyeing begins, replacing chemical reducing agents in many lines. Typical application conditions are pH 6.0–8.0 and 20–50 °C, with dosage adjusted to residual peroxide load and dwell time.
Dairy processing and milk deperoxidation
In dairy operations where hydrogen peroxide is used for cold pasteurization or sanitation, even small residues can interfere with starter cultures and cheese yield. Catalase function here is straightforward: remove oxidant, protect fermentation, and restore process consistency. Buyers typically specify a catalase enzyme with stable activity near neutral pH and adequate performance at tank temperatures from 20–40 °C.
Pulp and paper peroxide removal
Bleached pulp often carries residual peroxide into later washing or effluent stages, increasing chemical oxygen demand and complicating downstream treatment. A catalase enzyme can decompose remaining peroxide in-process or at the mill outlet, lowering oxidant carryover before discharge or recycle. Dose selection depends on peroxide concentration, pulp consistency, and available contact time.
Wastewater pretreatment before biology
Peroxide in industrial effluent can damage activated sludge and reduce biological treatment efficiency. Catalase enzyme provides a practical pretreatment step by rapidly breaking peroxide into water and oxygen before the stream reaches aerobic tanks. Process teams usually target neutral pH and moderate temperatures, then set dosage based on influent peroxide ppm and reaction kinetics.
| Parameter | Value |
| Activity range | 50,000 – 200,000 U/g |
| Optimal pH | 6.0 – 8.0 |
| Optimal temperature | 20°C – 50°C |
| Form | Dark brown powder or liquid |
| Shelf life | 12 months (sealed, cool, dry place) |
| Packaging | 25 kg drums (powder) / 25 kg jerricans (liquid) |
Frequently Asked Questions
What does the enzyme catalase do in industrial processing?
Catalase breaks down hydrogen peroxide into water and oxygen. In industrial settings, that means it removes residual oxidant after bleaching, sanitizing, or cold pasteurization steps. The benefit is process protection: dyes are less likely to shift, starter cultures are less likely to be inhibited, and wastewater biology is less likely to be stressed. For procurement teams, the key variables are residual peroxide load, required contact time, operating pH, and process temperature.
How do activity and temperature affect catalase function?
Activity determines how much peroxide the enzyme can decompose per unit mass, while temperature affects reaction rate and stability. A catalase enzyme may perform well in the lab but underdeliver in a hot or cold line if the temperature is outside its working window. For industrial use, matching activity and temperature to the real process is essential. This catalase is specified for 20–50 °C and neutral to mildly alkaline conditions, which fits many B2B cleanup applications.
What is the catalase enzyme substrate?
The substrate is hydrogen peroxide. Catalase enzymes convert hydrogen peroxide into water and oxygen, which is why the enzyme is used wherever peroxide must be removed before the next process step. In textile and paper operations, the substrate typically comes from bleaching. In dairy and food-contact sanitation, it comes from rinse or treatment residues. The correct dose depends on the peroxide concentration and the required endpoint residual.
How is dosage usually determined for catalase enzyme treatment?
Dosage is usually set from the residual peroxide concentration, stream volume, temperature, pH, and desired contact time. Industrial users often start with a small trial dose, then increase until peroxide is fully decomposed within the available residence time. Because process conditions vary, there is no single universal dose; instead, technical buyers should validate the dose at line conditions. Typical application trials are run at pH 6.0–8.0 and 20–50 °C.
Is catalase an enzyme suitable for food-grade operations?
Yes, catalase is widely used in food and dairy process steps where peroxide must be removed before culture addition, packaging, or contact with food surfaces. For those applications, buyers typically request food-grade documentation, relevant certifications, and stable supply in the required format. This product is available with ISO 9001, HALAL, KOSHER, and Food Grade positioning, making it suitable for controlled B2B procurement workflows.
Specify Catalase for Your Process Line
Tell us your application, peroxide load, and target residual. We'll recommend the right activity grade, send a free 100 g sample with COA, and quote bulk pricing.
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