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ANSC307
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ExamB
Fall Semester
November 2, 2011
Mark with an x the incorrect answers. (2 points each)
�Tray-Ready packaging means that the meat is ready to go into the case tor immediate selling.
[ ] The shearJings 4 pelt is the least valuable lamb pelt.
[ ] The sarcomere is the basic contractile unit of muscle.
rf] The maximum amount of sodium nitrite that can go into regular bacon is 200 ppm.
[ ] The Hydrodyne ™ process tenderizes beef by putting it in a sealed water-tilled chamber and
setting oti an explosion to destroy Z-lines.
[(<l
The higher the degree of doneness that steaks are cooked, the more tender the steak.
[iJ The Background Effect tor tenderness is related to the amount and distribution of marbling.
[ ] Swift's Pro-Ten process works by injecting the live animal with papain, which stays behind
in the muscle after bleeding and is activated by heat during the cooking process.
� Salt-soluble, heat-coaguble proteins (SSHCP) are collagen, elastin, and reticulin.
[ ] Muscle is a contractile unit that is made up of connective tissue, muscle fibers, and
· intramuscular fat.
] Meat is made more tender by: (1) causing the sarcomeres to be longer, (2) disrupting the
integrity of the myofibrils, and (3) disrupting the integrity ofthe connective tissue.
[ ] Lungs cannot be used for human food in the U.S.
[ ] High temperature, post-rigor chilling is where meat is stored at 20°C for 24 hours, which has
the same effect on tenderness as 2°C for 14 days.
[ J Gelatin is made from skins or hides, connective tissues, cartilage, and bones of cattle and
calves.
[ ] Flavor is the primary contributor of salt, sugar, and nitrite or nitrate in meat curing.
[ ] Fermented sausage means that is has lactic acid in it.
[tj Bos taurus breeds have higher calpastatin levels than Bos indicus breeds.
LfJ. A steak with a sarcomere length of 2.2 J.lm would be more tender than a steak with 2.9 J.lffi.
[ ] A steak with 32% collagen solubility would be tougher than a steak with 16%.
[ ] A 1,200 pound live animal yields 1,200 pounds ofT-bone steaks.
Aggie Honor Code: Good Ags do not lie. cheat or steal, nor do they tolerate those who do.
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