Effects of pH and Time of Grinding on Lipid Oxidation of Fresh Ground Pork
YASOSKY, J. J. ; ABERLE, E. D. ; PENG, I. C. ; MILLS, E. W. ; JUDGE, M. D.
Oxford, UK : Blackwell Publishing Ltd
Published 1984
Oxford, UK : Blackwell Publishing Ltd
Published 1984
| ISSN: |
1750-3841
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| Source: |
Blackwell Publishing Journal Backfiles 1879-2005
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| Topics: |
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Process Engineering, Biotechnology, Nutrition Technology
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| Notes: |
Experiments detected effects of pH on lipid oxidation of fresh ground pork. Pigs received antemortem epinephrine injections or postmortem carcass electrical stimulation to manipulate ultimate postmortem pH. High-pH (〉6.10) samples had lower TBA values than low-pH samples. Nonsignificant difference in TBA values between high-pH prerigor- and postrigor-ground samples indicated that, at common high pH, time of grinding had no effect on lipid oxidation. Differences in TBA values between prerigor high- and low-pH samples and postrigor high- and low-pH samples indicated that, with identical grinding treatments, inhibition of oxidation occurred at high pH. Metmyoglobin was relatively high in both low- and high-pH muscle and was not catalytically active at high pH.
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| Type of Medium: |
Electronic Resource
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| URL: |