Barva presnih in termično obdelanih govejih mišic m. longissimus dorsi in m. psoas major normalne in tčs (temne, čvrste in suhe) kakovosti : doktorska disertacija = Color of raw and thermal treated beef muscles m. longissimus dorsi and m. psoas major of normal and dfd (dark, firm and dry) quality : dissertation thesis
Demšar, Lea, 1963-
Namen dela je bil ugotoviti vpliv kakovosti miǴiřnine, oksigenacije, barvne stabilnosti miǴic, yorenja in termiřne obdelave (Ts 45ŚC, 50ŚC, 55ŚC, 60ŚC, 65ŚC, 70ŚC in 75ŚC) na barvo mlade govedine. ...Rayiskani sta bili m. longissimusdorsi (LD) in m. psoas major (PM) normalne (pHk~5,6) in TčS (pHk>6,5) kakovosti bikov svetlolisaste pasme, starih 18 mesecev. Na podlagi senyoriřne analiye smo oblikovali barvne standarde obe miǴici. S senyoriřno ininstrumentalno analiyo barve lahko mladi govedini dolořimo kakovost in stopnjo termiřne obdelave. Barva presne in do Ts 65ŚC temiřno obelane TčS govedine se pred in po oksigenaciji ynařilno (p Ň 0,001) loři od normalne govedine ter vsebuje veř nativnega miǴiřnega pigmenta (Mb). Y viǴanjem srediǴřne temperature se praviloma ymanjǴata specifiřna aktivnost citokrom c oksidaye (SACCO) in poraba kisika. Ynařilno se ymanjǴajo Mb kot tudi senyoriřno ocenjeni deleÍi treh osnovnih barv (řrne - Dč, rdeře - DRd in rumene - DRu) ter instrumentalni parametri barve (rayen L-vrednosti, ki se poveřa). Oksigenacija presnih in termiřno obdelanih reyin obeh kakovosti pomembno (p Ň 0,001) vpliva na Dč (yniÍanje) ter a- in b-vrednost (poviǴanje). Obstaja yelo tesna negativna poveyava (R=-0,8675 in R=-0,8260) med Dč in DRu ter L-vrednostjo. Na barvo popolnoma termiřno obdelane mlade govedine (Ts = 75ŚC) opayovani dejavniki ne vplivajo. MiǴici y rayliřno barvno stabilnostjo se v barvi lořita Ǵele po termiřni obdelavi in oksigenaciji. Yorenje vpliva na pojav 30 kDa komponente pri miofibrilarnih beljakovinah LD normalne ter LD in PM TčS kakovosti, ne vpliva pa na barvo, porabo kisika in SACCO.
Type of material - dissertation
; adult, serious
Publication and manufacture - Ljubljana : [L. Gašperlin], 1998
GS II 0000488936 glavno skladišče
GS II 488936 glavno skladišče
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