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KMID : 1024620110310060865
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Food Science of Animal Resources
2011 Volume.31 No. 6 p.865 ~ p.871
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Effects of Pumpkin (Cucurbita moschata Duch.) Leaf Ethanolic Extracts on Lipid Oxidation and Microbial Activity in Refrigerated Raw Ground Pork
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Choe Ju-Hui
Kim Hack-Youn
Choi Yun-Sang
Han Doo-Jeong
Choi Ji-Hun
Kim Yong-Jae
Kim Cheon-Jei
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Abstract
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This study was conducted to evaluate the antioxidant effects of pumpkin leaf extracted using a 50% ethanol on ground pork during storage. The pumpkin leaf extracts were added at concentrations of 0.05 (PE-0.05), 0.1 (PE-0.1), and 0.2% (PE-0.2) to ground pork, and 0.05% of ascorbic acid (As-0.05) was added as a control. Each sample was collected after 1, 4, 7, and 10 d of storage and the pH, total viable counts (TVC), conjugated dienes (CD), free fatty acids (FFA), and thiobarbituric reaction substance (TBARS) values were measured. The pH of the pork samples decreased until day 7, and then increased thereafter, except for the control and PE-0.05 sample. Lower CIE $a^*$ 수식 이미지 values were observed for pork samples containing PE relative to As-0.05 at increasing storage time (p<0.05). The addition of PE decreased the TVC, CD, FFA and TBARS values levels in the ground pork when compared to the control during 10 d of storage. These results indicate that PE can produce notable effects on meat products, such as inhibiting lipid oxidation and discoloration.
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KEYWORD
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pumpkin leaf, lipid oxidation stability, shelf-life stability, ground pork
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