| Chemical composition and nutritional quality of soybean meals prepared by extruder/expeller processing for use in poultry diets. | |
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MedLine Citation:
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PMID: 17032017 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This research examined variation in chemical composition and nutrient quality of soybeans (SBs) and soybean meals (SBMs) produced at seven commercial extruder/expeller plants in the United States (experiment 1), as well as differences in amino acid digestibilities when roosters were fed SBMs extruded at 121, 135, 150, or 160 degrees C at a U.S. pilot processing plant (experiment 2). In experiment 1, limited variation existed in the composition of SBs arriving at the plants, whereas substantial differences were noted in amino acid composition and protein quality of the resultant SBMs. In experiment 2, the SBMs extruded at 121 and 135 degrees C were underprocessed as noted by high urease activities and lower amino acid digestibilities. Soybean meals extruded at 150 and 160 degrees C resulted in higher amino acid digestibilities and lower urease activities, indicating adequate processing. Large variation exists in the nutritional quality of extruder/expeller SBMs currently in the marketplace. Optimal processing temperatures should be >135 degrees C, and temperatures as high as 165 degrees C do not result in overprocessing. |
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Authors:
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Lisa K Karr-Lilienthal; Laura L Bauer; Pam L Utterback; Krista E Zinn; Rodney L Frazier; Carl M Parsons; George C Fahey |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 54 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2006 Oct |
Date Detail:
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Created Date: 2006-10-11 Completed Date: 2006-12-01 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 8108-14 Citation Subset: IM |
Affiliation:
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Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids
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analysis,
metabolism Animals Chickens* / metabolism Diet* Digestion Food Handling / methods* Male Nutritive Value* Soybean Proteins / chemistry Soybeans / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Soybean Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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