PubAg

Main content area

Effects of conjugated linoleic acid on color and lipid oxidation of beef patties during cold storage

Author:
Hur, S.J., Ye, B.W., Lee, J.L., Ha, Y.L., Park, G.B., Joo, S.T.
Source:
Meat science 2004 v.66 no.4 pp. 771-775
ISSN:
0309-1740
Subject:
ground beef, patties, conjugated linoleic acid, antioxidant activity, food packaging, food storage, cold storage, storage time, lipid peroxidation, myoglobin, oxidative stability, thiobarbituric acid-reactive substances, beef quality, color, fatty acid composition
Abstract:
The effects of conjugated linoleic acid (CLA) on color and lipid oxidation of beef patties were investigated. Ground beef was divided into three batches. The control patties were prepared with 90% lean meat and 10% tallow. The second treatment consisted of 90% lean meat with 9.5% tallow+0.5% CLA sources. The third treatment consisted of 90% lean meat with 8% tallow+2% CLA sources. The patties were wrap-packaged and then stored at 4 for 14 days. The CLA concentration significantly increased (P<0.05) by substituting CLA sources for fat. Storage of the patties did not alter the CLA concentration in beef patties. The treatment substituted with CLA sources had significantly lower TBARS (2-thiobarbituric acid-reactive substances) values (P<0.05) than the control. For oxymyoglobin contents and a* value, substituted CLA sources treatments had significantly higher values than the control. However, L* value significantly increased by substituting CLA sources for fat.
Agid:
2723414