Huatai Intelligent Equipment Group has been granted a national patent for its "Cottonseed Protein Dephenolization Continuous Production Complete Equipment" (Patent No.: ZL2025 2 1323101.2), marking a significant breakthrough in cottonseed deep processing technology . This patented system integrates multiple processing stages to efficiently remove gossypol from cottonseed while preserving protein quality.
The Challenge – Free Gossypol in Cottonseed
Cottonseed is a valuable source of both oil and protein, but it contains gossypol, a toxic polyphenolic compound that must be removed before the protein can be used for human consumption or high-quality animal feed. International standards (WHO/FAO/UNICEF) require free gossypol content below 0.06% for safe consumption .
Huatai's Patented Dephenolization Technology
Huatai's continuous production equipment uses a two-solvent extraction method that sequentially extracts cottonseed oil and gossypol, ensuring oil quality and thorough gossypol removal . The process achieves free gossypol content below 0.04% , exceeding international standards .
Complete Equipment Line Includes:
- Wind cleaning machine – removes light impurities
- Tooth-roll crusher – crushes cottonseed to optimal particle size
- Stepped sieve – separates materials by particle size
- Softening pot – conditions material for flaking
- Flaking mill – creates thin flakes for extraction
- Plate dryer – controls moisture content
- Dephenolization extractor – removes gossypol and oil
- Disc dryer – final drying of protein product
Key Technical Advantages
- High Protein Content – Huatai's advanced dephenolization concentrated protein extraction technology achieves protein content of 72.7–76.2% with gossypol content as low as 230–290 ppm and residual solvent at 280–340 ppm .
- Low-Temperature Processing – The system operates at low temperatures throughout, preventing protein denaturation and ensuring product quality stability .
- Comprehensive Removal – The process simultaneously removes gossypol during oil extraction, avoids cottonseed protein denaturation, and can even remove aflatoxins during storage .
- Capacity Range – Available from 100 to 1,000 tons per day, meeting various production scale requirements .
- Advanced Wet Meal Dephenolization – Direct dephenolization of wet meal after oil extraction reduces consumption and ensures product quality stability .
Why Choose Huatai
With 38+ years of expertise in grain and oil machinery and projects in 70+ countries, Huatai Group is a National "Little Giant" Enterprise and Green Factory with 100+ national patents. We provide complete turnkey solutions covering design, manufacturing, installation, and training.
