Effects of Dietary Supplementation of Mulberry Leaves and Dandelion Extracts on Storage of Chicken Meat
2010
Park, C.I., Daegu University, Gyeongsan, Republic of Korea | Kim, Y.J., Daegu University, Gyeongsan, Republic of Korea
This study was conducted to investigate the effects of dietary supplementation of mulberry leaves and dandelion extracts on pH, meat color, TBARS (thiobarbituric acid reactive substance), and VBN (volatile basic nitrogen). Two hundred broiler chickens were fed diets for five weeks containing 1% mulberry leaves extracts (T1), 2% mulberry leaves extracts (T2), 1% dandelion extracts (T3), and 2% dandelion extracts (T4). At the end of five weeks feeding experiment, broilers were slaughtered, and stored at 4℃ for five weeks. As storage time increased, the presence of mulberry leaves and dandelion extracts resulted in decreased pH, and L* and increased TBARS, VBN, and a* value in all treatment groups (P less than 0.05). The pH value, TBARS, and VBN were significantly decreased by the supplementation of mulberry leaves and dandelion extracts relative to the control (P less than 0.05). Therefore, mulberry leaves and dandelion extracts had the possibility to improve shelf life of chicken meat. Especially, T4 was significantly more effective in delay lipid oxidation compared to the control group. However, no significantly difference was found in pH, TBARS, and VBN among mulberry leaves and dandelion extracts treatment groups. In conclusion, this study demonstrates that compared to control group, supplementation of mulberry leaves and dandelion extracts were effective in decreasing pH, TBARS, and VBN and increasing a* value.
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