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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 34 (1969), S. 0 
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: SUMMARY: Data collected from 690 beef rib steaks were utilized to evaluate the methodology of beef tenderness measurements. The information obtained in this study was critically compared to existing research and evaluated in relation to sample handling procedures. Frozen storage of steaks, especially if they are unprotected from dehydration or are stored for long periods of time, has important implications if such data are to be compared to steaks which were evaluated in the unfrozen state. Cooking frozen steaks with or without thawing apparently has little effect on tenderness or cooking loss. Anatomical location of the sample should be carefully controlled to prevent spurious differences from affecting tenderness measurements. Evidence indicates that a tenderness gradient exists over the cross-section of the I. dorsi and suggests that core samples should be taken from as many and as varied positions as is feasible for existing research conditions. The use of marbling score as an indicator of the tenderness of beef rib steaks resulted in the explanation of 28 percent of the variation in average shear force requirements. The shear force value of the diaphragm muscle was only moderately related (r = 0.40) to that of the I. dorsi. Cooking loss percentages were significantly increased as a result of freezing at–34°C and storage of steaks unwrapped at −23°C when compared to unfrozen steaks and by selecting I. dorsi samples from more anterior locations in the wholesale rib.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    ISSN: 1750-3841
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: SUMMARY— Comparisons involving fresh versus frozen chops and roasts from 190 lamb carcasses indicated significant though nonconformable treatment effects on cooked-sample palatability characteristics. Freezing resulted in a highly significant increase in shear force values for loin chops and highly significant decreases in flavor, tenderness and overall satisfaction scores for leg roasts. Freezing rib chops, in contrast to the results for loin chops and leg roasts, resulted in a highly significant decrease in shear force values indicating an increase in tenderness as the result of freezing. Several possible explanations concerning these contradictory findings are suggested and discussed. In other paired-chop comparisons, higher final cooking temperatures resulted in increased shear force values for rib chops; wrapping samples prior to freezing appeared to have little effect on chop tenderness comparisons. In all comparisons, variance ratios between chops treated differently were not significantly altered.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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