Protein qualitydifference between biological value and net protein utilizationComplete proteinProtein utilization ratenet protein utilization中文High biological value proteinHigh-quality proteinProtein efficiency ratioThe protein digestibility corrected amino acid scoreWhey protein ResearchProtein digestibility corrected amino acid score

Net protein utilization - Wikipedia

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The net protein utilization, or NPU, is the ratio of amino acid mass converted to proteins to the mass of amino acids supplied. Netproteinutilization FromWikipedia,thefreeencyclopedia Jumptonavigation Jumptosearch Thenetproteinutilization,orNPU,istheratioofaminoacidmassconvertedtoproteinstothemassofaminoacidssupplied.Thisfigureissomewhataffectedbythesalvageofessentialaminoacidswithinthebody,butisprofoundlyaffectedbytheleveloflimitingaminoacidswithinafoodstuff. Itisusedasameasureof"proteinquality"forhumannutritionalpurposes.[1] Asavalue,NPUcanrangefrom0to1(or100),withavalueof1(or100)indicating100%utilizationofdietarynitrogenasproteinandavalueof0anindicationthatnoneofthenitrogensuppliedwasconvertedtoprotein. Certainfoodstuffs,suchaseggsormilk,rateas1onanNPUchart. Experimentally,thisvaluecanbedeterminedbydeterminingdietaryproteinintakeandthenmeasuringnitrogenexcretion.OneformulaforNPUis:[citationneeded] NPU={0.16×(24hourproteinintakeingrams)}-{(24hoururinaryureanitrogen)+2}-{0.1×(idealbodyweightinkilograms)}/{0.16×(24hourproteinintakeingrams)} TheProteinDigestibilityCorrectedAminoAcidScore(PDCAAS)isamoremodernratingfordeterminingproteinquality,andthecurrentrankingstandardusedbytheFDA. TheDigestibleIndispensableAminoAcidScore(DIAAS)isaproteinqualitymethod,proposedinMarch2013bytheFoodandAgricultureOrganization[2]toreplacethecurrentproteinrankingstandard,theProteinDigestibilityCorrectedAminoAcidScore(PDCAAS).Thepropositioniscontested,however,duetoconflictsofinterestandlackofdata.[3] Seealso[edit] Biologicalvalue Proteinefficiencyratio Nitrogenbalance References[edit] ^ProteinQuality–The4MostImportantMetrics ^"FAOproposesnewproteinqualitymeasurement-IFT.org".2017-05-19.Archivedfromtheoriginalon2017-05-19.Retrieved2020-11-03. ^"Potentialimpactofthedigestibleindispensableaminoacidscoreasameasureofproteinqualityondietaryregulationsandhealth".ResearchGate.Retrieved2020-11-03. SuzanneNelsonetal.AdLibitum.H2ONaC[fullcitationneeded] Retrievedfrom"https://en.wikipedia.org/w/index.php?title=Net_protein_utilization&oldid=1031188103" Categories:AminoacidsProteinsHiddencategories:AllarticleswithunsourcedstatementsArticleswithunsourcedstatementsfromNovember2017AllarticleswithincompletecitationsArticleswithincompletecitationsfromNovember2017 Navigationmenu Personaltools NotloggedinTalkContributionsCreateaccountLogin Namespaces ArticleTalk English expanded collapsed Views ReadEditViewhistory More expanded collapsed Search Navigation MainpageContentsCurrenteventsRandomarticleAboutWikipediaContactusDonate Contribute HelpLearntoeditCommunityportalRecentchangesUploadfile Tools WhatlinkshereRelatedchangesUploadfileSpecialpagesPermanentlinkPageinformationCitethispageWikidataitem Print/export DownloadasPDFPrintableversion Languages Español Editlinks

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