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  3. Soap for the ages You really can take a can of

Soap for the ages You really can take a can of

游客2023-12-18  41
问题                             Soap for the ages
     You really can take a can of soup with you to the bomb shelter, and if it’s not dented or damaged, it will last for years. But it may not taste quite right.
     Over time, says Michael Doyle, a food microbiologist at the University of Georgia’s Center for Food Safety and Quality Enhancement, the interaction between the acid in the soup and the lining of the steel can may produce sulfur dioxide gas, causing the can to swell.
     The pressure and high temperature used in the canning process mean that the soup will remain safe as long as no pathogen makes its way into a damaged can, says Rhona Applebaum of the National Food Processors Association. The soup won’ t make you sick, but levels of certain nutrients will decrease. The color of the food may change, as well as its tartness or tanginess. Vegetables may lose their crispness. And the food might develop a sulfurous taste .because of the production of hydrogen sulfide; if it contains meat, it might smell or taste slightly of ammonia. Best bet: If the can is swollen, toss it. [br] What Cause’s the soup can to swell?
选项 A、Meat.
B、Sulfur dioxide gas.
C、Hydrogen sulfide.
D、Pathogen.
答案 B
解析
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