Quality of Lettuce as Affected by Refrigeration and Controlled Atmosphere Systems During Transportation
ARMY NATICK LABS MA FOOD LAB
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A shipping test from Oakland, California to Japan was conducted to determine the effect of a low oxygen controlled atmosphere system Oxytrol as well as a new refrigeration system Cooltainer on the shelf life of lettuce shipped to military organizations overseas. The Oxytrol system is a complete, self-contained atmosphere control system designed to be used as an adjunct to normal refrigeration equipment in conventional transport vehicles. Results indicated that lettuce shipped under the low oxygen controlled atmosphere system oxygen level ranged from 2.2 to 4 percent gave significantly higher edible yields than lettuce shipped in conventional or Cooltainer vans regardless of the packaging wrapping versus no wrapping and packing wirebound wooden boxes versus cardboard wax impregnated boxes. All wrapped lettuce exhibited significantly higher edible yields than unwrapped lettuce regardless of packing and shipping vans. However, no significant difference was shown between lettuce packed in wirebound wooden boxes and that packed in cardboard wax impregnated boxes regardless of the shipping vans.
- Food, Food Service and Nutrition