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Effect of Feeding Probiotics on Physico-chemical Properties and Sensory Evaluation of Pork  

Hah, Kyoung-Hee (National Livestock Research Institute)
Lee, Chang-Woo (Yoonchang Corporation)
Jin, Sang-Keun (Department of Animal Resources Technology, Jinju National University)
Kim, Il-Suk (Department of Animal Resources Technology, Jinju National University)
Song, Young-Min (Department of Animal Resources Technology, Jinju National University)
Hur, Sun-Jin (Department of Animal Resources Technology, Jinju National University)
Kim, Hoi-Yun (Department of Animal Resources Technology, Jinju National University)
Lyou, Hyun-Ji (Department of Animal Resources Technology, Jinju National University)
Ha, Ji-Hee (Department of Animal Resources Technology, Jinju National University)
Publication Information
Food Science of Animal Resources / v.25, no.3, 2005 , pp. 295-303 More about this Journal
Abstract
A total of 120 pigs were used to investigate the effect of feeding probiotics on physico-chemical properties and sensory evaluation of pork loin. About 50kg pigs were randomly alloted into one of six experimental diet groups (C1:commercial diet feed the gilt; C2:commercial diet feed the barrow; T1:$0.5\%$ YC2000 feed the gilt T2:$0.5\%$ YC2000 feed the barrow; T3:$0.1\%$ YC2000 + $0.3\%$ KBC1121 feed the gilt; T4:$0.1\%$ YC2000 + $0.3\%$ KBC1121 feed the barrow). Pigs were slaughtered at approximately 110kg live weight. Crude fat and crude ash were not difference among the treatments. However, water content was higher in T1 and T2 compared to other treatment and the protein level of T3 was higher than those of other treatments. All of dietary probiotic groups showed higher pH compared to control. Especially, pH of T1 and T2 were higher among the dietary probiotic groups. Cholesterol level of dietary probiotic groups were lower compared to control. In meat color, $a^{*}$ was higher in T1 and $b^{*}$ was lower in T2 compared to other treatments. In sensory evaluation of cooked meat, aroma, flavor, tenderness, juiciness and overall palatability were higher in control, whereas T3 and T4 showed higher score in tenderness, juiciness and overall palatability. T3 had higher myristic acid. palmitoleic acid and oleic acid, whereas arachidonic acid was lower in T3. In conclusion, dietary probiotic groups were much better than other treatments in cholesterol, color, tenderness and juiciness. But drip loss of dietary probiotic groups showed higher due to lower pH compared to control.
Keywords
probiotics; pork quality; cholesterol; color; sensory evaluation;
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