title: Atmosphere and blooming time affect color and lipid stability of frozen beef from steers supplemented with Vitamin E.
abstract: The influence of blooming time (1, 6 or 48 h) and atmosphere (air or 100% oxygen) on color and lipid stability of frozen Longissimus lumborum (LL) from control and vitamin E supplemented steers was studied. Samples were stored at -20°C with or without illumination. Blooming control LL for 48 h in air followed by dark storage increased discoloration. Supplementation and blooming in oxygen, separately or combined, increased color display life. Illumination increased discoloration. Supplementation coupled with blooming for 6 or 48 h in 100% oxygen provided the highest color stability in both dark and illuminated storage. Color display lives for supplemented LL bloomed for 6 and 48 h in oxygen were 182 and 212 days for dark storage, and 21 and 73 days for illuminated display. Supplementation decreased lipid oxidation in illuminated LL, but blooming for 48 h in oxygen minimized this effect.
authors: Muscle Biology and Meat Science Laboratory, Department of Meat and Animal Science, University of Wisconsin-Madison, 1675 Observatory Drive, Madison, WI 53706, U.S.A.
authors: M C
authors: MC
authors: Lanari
authors: D M
authors: DM
authors: Schaefer
authors: R G
authors: RG
authors: Cassens
authors: K K
authors: KK
authors: Scheller