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| Preparation of high protein degossypoled cottonseed meal |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.240079 |
| KeyWord:degossypoled cottonseed meal protein content free gossypol degossypol residual oil |
| FundProject: |
| Author Name | Affiliation | | WANG Runan1,2, ZHANG Yang3, HAN Wenjie2,3 | (1.Handan Chenguang Botanical Protein Co. , Ltd. , Handan 057250, Hebei, China
2.Hebei Province Cottonseed Comprehensive Processing Technology Innovation Center, Handan 057250,
Hebei, China
3.Chenguang Biotech Group Tumxuk Co. , Ltd. ,Tumxuk 843900, Xinjiang, China) |
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| Abstract: |
| To meet the market demand, enhance the utilization value of cottonseed meal,combined with the actual production situation, the single factor variable control method was used to adjust the key control parameters, such as the shell content of cottonseed kernel, methanol solution extraction process parameters and the cracking and screening conditions of finished products, to determine the production process of high protein degossypoled cottonseed meal using cottonseed kernel with 2% and 5% shell content as material. When the shell content of the raw material was 2%, the appropriate extraction process was soak extraction, material-liquid ratio 1∶ 3, soak extraction time 30 min, methanol solution extraction gradient 60%-70%-80%-90%,extraction times 4, the residual oil of cottonseed meal below 0.7%, and the moisture after desolventing and drying below 5%. At 5% shell content,the appropriate extraction process was liquid-liquid extraction, material-liquid ratio 1∶ 2, methanol solution extraction gradient 70%-70%-70%-70%-80%-90%, extraction times 6, the residual oil of cottonseed meal below 0.7%，and the moisture after desolventing and drying below 5%. Using these two methods, degossypoled cottonseed meal with crude protein content above 70% can be obtained with content of free gossypol meeting the requirements of internal control index (≤400 mg/kg). |
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