Food Grade Protease – High Activity & High Stability Solid Enzyme Preparation for Enzymatic Dehairing

Food Grade Protease is a high-efficiency enzymatic depilatory preparation developed for food processing applications. It is specially designed for dehairing processes and provides fast, controlled, and environmentally responsible hair removal under mild reaction conditions.

This product belongs to the category of food-grade solid enzyme additives. It appears as a milky white to light yellow powder and is formulated with protease and edible salt to ensure stable performance, easy handling, and consistent industrial application.

The enzyme preparation is primarily used in food processing (dehairing applications). Compared with traditional sulfide-based chemical dehairing methods, enzymatic treatment significantly reduces environmental pollution, minimizes wastewater burden, and helps maintain better substrate quality.

產品優勢

Limitations of Sulfide Dehairing:
In conventional processing, sodium sulfide is commonly used to break disulfide bonds in keratin to achieve dehairing. However, this process generates large amounts of wastewater pollution and may negatively affect product quality.

Advantages of Enzymatic Dehairing:
This protease preparation selectively opens disulfide bonds in keratin and gently hydrolyzes elastic fiber structures. The process is milder, reduces environmental impact, and preserves substrate integrity. Increasing dosage and extending processing time enhance dehairing performance, while excessive dosage or elevated temperature may cause surface damage.

產品資訊

成分： Protease, edible salt

外貌： Milky white to light yellow solid powder

包裝： 以 1公斤/袋, 密封食品級鋁箔袋。請注意產品圖片僅供示意，實際包裝可能有所不同。.

保存期限： 在建議的儲存條件下為期 12 個月

工作條件

• 有效溫度範圍： 20°C – 60°C
• Optimal Temperature Range: 30°C – 40°C
• 有效pH範圍： 6.0 – 12.0
• 最佳pH範圍： 6.0 – 8.0

產品規格

• 細度（40目篩網通過率）： ≥ 80%
• 濕度： ≤ 8.0%
• 鉛 (Pb)： ≤ 5.0 毫克/千克
• Total Arsenic (as As): ≤ 3.0 毫克/千克
• 總菌落數： ≤ 50,000 CFU/g
• 大腸桿菌群： ≤ 30 菌落形成單位/克
• Thermotolerant Coliforms: < 10 CFU/g or ≤ 3.0 MPN/g
• 沙門氏菌（25 克）： 未偵測到

申請方法

1. Soak raw materials until fully rehydrated and washed. Place into a rotating drum and add water at a ratio of raw material to water of 1:1.
2. Add 0.5% enzyme preparation (based on raw material weight) and mix evenly. Adjust pH to approximately 7.0 and maintain temperature around 35°C.
3. Start rotation and observe the dehairing process for approximately 4 hours, until hair removal is complete.

Raw material diversity, source variations, and local production environments may influence dehairing results. It is strongly recommended to conduct small-scale trials before proceeding to large-scale production. This helps avoid potential losses caused by differences in raw materials or processing conditions. Especially for lower-quality leather, it is even more important to precisely control the processing steps and treatment time.

作用機制

This protease preparation acts on keratin structures by selectively breaking disulfide bonds and gently degrading structural proteins responsible for hair attachment. The enzymatic reaction weakens the hair root structure, allowing efficient removal without aggressive chemical attack. The process operates effectively within a broad pH range of 6.0–12.0 and a temperature range of 20°C–60°C, with optimal performance observed at 30°C–40°C and pH 6.0–8.0.

Application Field

Widely used in food processing industries requiring enzymatic dehairing treatment and other related processing fields.