Effect of process parameters on the physical quality of low-starch extruded feed containing Clostridium autoethanogenum protein

Clostridium autoethanogenum protein (CAP) is a novel single-cell protein source derived from the inactivated bacterial biomass produced by CO syngas biological fermentation. There has been limited research on the effect of process parameters on the physical quality of aquatic extruded feed containin...

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Bibliographic Details
Published in:Animal feed science and technology 2023-10, Vol.304, p.115745, Article 115745
Main Authors: Ma, Shifeng, Wang, Hao, Yang, Jie, Liang, Xiaofang, Xue, Min, Cheng, Hongyuan
Format: Article
Language:English
Subjects:
Clostridium autoethanogenum protein
Extrusion
Optimization
Physical quality of feed
Processing parameters
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Summary:Clostridium autoethanogenum protein (CAP) is a novel single-cell protein source derived from the inactivated bacterial biomass produced by CO syngas biological fermentation. There has been limited research on the effect of process parameters on the physical quality of aquatic extruded feed containing CAP. A low-starch formula containing 180 g/kg CAP was used to study the effects of preconditioning moisture content (22–30 %), screw speed (240–300 rpm), die temperature (120–150 ℃) and feed rate (56.5–94.5 kg/h) on the physical quality of extruded feed and specific mechanical energy (SME) of the extruder. Preconditioning moisture content had significant effects on the bulk density (P 
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2023.115745