Quality Comparison of M. longissimus from Crossbred Wild Boars, Korean Native Black Pigs and Modern Genotype Pigs during Refrigerated Storage

摘要

This study was carried out to investigate the quality comparison of M. longissimus from 4 crossbred wild boars (wild boar male X Duroc frmale, 113 kg, 1 barrow and 3 gilts, CWB) reared outdoor, 5 Korean native black pigs (64 kg, 5 barrows, KNP) and 5modern genotype pigs (Landrace X Yorkshire X Duroc, 114 kg, 5 barrows, MGP) reared indoor. The samples were stored at 2 +- 0.2 deg C for 12 days and utilized in the quality measurement. The moisture content was significantly higher in CWB than in KNP (p<0.05), however crude fat content was significantly lower in CWB than in KNP P<0.05). The pH value of CWB was significantly lower than that of MGP during 12 days of storage (p<0.05). Therefore the CWB showed significantly lower water-holding capacity than MGP (p<0.05). The L*, a*, b* and C* values of CWB were significantly lower than those of KNP during 12 days of storage (p<0.05), however those of CWB were significantly higher than those of MGP after 3 and 6 days of storage (p<0.05). In fatty acid composition, the CWB had higher unsaturated fatty acid including linoleic acid, arachidonic acid and lower saturated fatty acid. However, the lipid oxidation of CWB was delayed during storage compared with KNP and MGP. The aroma patterns by principal component analysis (PCA) from electronic nose was discriminately different among 3 different pork at 0 and 12 day of storage.