Document Detail


Bioavailability of lysine in Maillard browned protein as determined by plasma lysine response in rainbow trout (Salmo gairdneri).
MedLine Citation:
PMID:  3121813     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The bioavailability of lysine in Maillard browned protein was investigated by plasma lysine response in rainbow trout (Salmo gairdneri). The concentrations of free lysine in the plasma were measured after feeding control and browned protein diets supplemented with graded levels of lysine. Bioavailability of lysine was estimated based on the amounts of supplemental lysine in the diets that resulted in rapid increases in plasma lysine. An approximately 80% loss in bioavailable lysine content was determined by this method in a fish protein isolate subjected to the Maillard browning reaction under mild conditions (40 d incubation at 37 degrees C). The nutritional damage to lysine determined by plasma lysine response was similar to that estimated in vitro by enzymatic hydrolysis and fluorodinitrobenzene reagent, but was underestimated by acid hydrolysis and trinitrobenzene sulfonic acid reagent. Rainbow trout are similar to other animals in their inability to utilize the deoxyketosyl (Amadori) compound of lysine formed in early Maillard reaction, and in their plasma response to dietary levels of essential amino acids.
Authors:
S M Plakas; T C Lee; R E Wolke
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  The Journal of nutrition     Volume:  118     ISSN:  0022-3166     ISO Abbreviation:  J. Nutr.     Publication Date:  1988 Jan 
Date Detail:
Created Date:  1988-02-10     Completed Date:  1988-02-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  19-22     Citation Subset:  IM    
Affiliation:
Department of Fisheries, Aquaculture and Pathology, University of Rhode Island, Kingston 02881.
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / blood
Animals
Dietary Proteins / metabolism*
Hot Temperature
Lysine / blood,  metabolism*
Nutritive Value
Trout
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Dietary Proteins; 56-87-1/Lysine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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