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標題: Determination of quality changes throughout processing steps in Chinese-style pork jerky
作者: Chen, W.S.
Liu, D.C.
Chen, M.T.
關鍵字: Chinese-style pork jerky;quality changes;water activity
Project: Asian-Australasian Journal of Animal Sciences
期刊/報告no:: Asian-Australasian Journal of Animal Sciences, Volume 17, Issue 5, Page(s) 700-704.
Chinese-style pork jerky is a typical intermediate moisture meat product obtained by curing, drying and roasting pork samples. The chemical, physical and microbiological characteristics of pork jerky were evaluated throughout processing. The moisture content varied from 72.5% to 23.4 or 19.6% and a(w) varied form 0.97 to 0.74 or 0.72 in accordance with processing steps. The pork jerky roasted at 200 C had higher shear value than roasted at 150 C because the moisture content and a, of the former sample was lower than the later sample. The nitrite losses during whole processing steps amount to nearly 50%. The TBA value of pork jerky varied from 0.34 to 9.25 or 9.83 mg of malonaldehyde depended on processing steps. The VBN value of pork jerky ranging from 0.25 to 22.4 or 23.5 mg/kg depended upon processing steps. The ATPase activity of myofibrillar proteins during processing steps were partly or entirely denatured by the heat-drying or heat-roasting treatment. A gradual decrease in microorganism count during processing of pork jerky was also observed.
ISSN: 1011-2367
Appears in Collections:動物科學系

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