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REPRINTS, COPIES
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- http://www.aspergillus.man.ac.uk
- The Aspergillus Website Aspergillus fumigatus has information on it.
What To Do About Mold - A Consumer Handbook.
| Mold - Is it just a nuisance?In many cases, yes, particularly in warm, humid weather when food molds quickly. Worldwide, though, mold causes great economic losses, destroying crops and shortening food storage times in the home. |
| But certain molds can be dangerous.Some molds cause allergic reactions and respiratory problems. And a few molds, in the right conditions, produce poisonous substances that can make you sick. These are called mycotoxins. |
| How can you tell if a mold is dangerous? |
| How can you tell if a mold is dangerous?You can'
t. That's the problem. Some mold toxins are powerful even in small amounts. Some toxins can survive for a long time in food. Some aren't even destroyed by cooking.
So you can't always safely scrape or cut the mold off food. These guidelines will help you in avoiding mold growth and handling the moldy food you encounter anyway. |
| How Mold Grows |
| Mold is a type of fungus. In many molds, the body consists of"root" threads that invade the food it lives on, a stalk that rises above the food and spores that form at the ends of the stalks. The spores give the mold the color you see. When airborne, the spores spread the mold from place to place like dandelion seed.
Once a food shows heavy mold growth, you can bet that the"root" threads have invaded it deeply. In dandergous molds, the mycotoxins are often contained in and around these threads. In some cases, the toxins may have spread throughout the food. |
| How can mold grow in the refrigerator? While most molds prefer warmer temperatures, they can grow in the colder range. Molds also tolerate salt and sugar better than most other food invaders. So you may find mold in refrigerated jams and jelly [high sugar] and on cured, salty meats - ham, bacon, salami. |
| Minimize Mold Growth in Your Refrigerator And Kitchen |
| Cleanliness is vital in controlling mold. Mold spores from affected food can build up in your refrigerator, shortening the life of other foods. Suggestion: Clean the inside of the refrigerator every few months with 1 tbsp. of baking soda dissolved in a quart of water. Rinse with clear water and dry. Scrub visible mold j(usually black) on rubber casings with 3 tbsp. of bleach in a quart of water.
Keep disrags, dish cloths, sponges and mops clean and fresh. A musty smell means they're spreading mold around. Discard items you can't clean or launder. |
| Don't unknowingly buy moldy food.Quick shopping sometimes means you don't examine food well before you buy it. But it's important to check food in glass jars and fresh fruits and vegetables for mold growth. Check the stem areas on fresh produce. Notify the store manager about mold on any foods.
Fresh meat and poultry are usually mold-free, but cured meats and smoked turkey may not be. Examine them carefully. Expceptions? Some salamis-San Francisco and Italian types - have a characteristic thin, white mold coating. They shouldn't show any mold. |
| Protect food from spore"invaders" when it's sitting out. When serving food, keep it covered to prevent exposure to mold spores in the air. Plastic wrap is good for food you want to stay moist -fresh or cut fruits or vegetbles, green and mixed salads. Just remember, don't leave any perishables out of the refrigerator over 2 hours.
Don't want moisture buildup? Cake and cheese keepers with their own covers will protect those foods without excess moisture buildup. For breads, use clean paper towels as a cover-this lets bread"breathe."
Empty opened cans of perishable food into clean refrigerator dishes and refrigerate promptly. Reseal boxed food as tightly as possible to keep air that contains mold spores out.
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| Oh, No... There's Mold On It |
| Buying smaller amounts and using food quickly can help prevent mold growth. But when you see moldy food...
Don't sniff the moldy item. You don't want respiratory trouble. If food is covered with mold, discard it. Put it in a small paper bag or wrap it in plastic for disposal in a covered trash can children and animals can't get into. Clean the refrigerator, if necessary, where the food was sitting. Check nearby items it might have touched. Mold spreads quickly in fruits and vegetables.
If the food shows only a tiny mold spot, follow these guidelines. Generally, we suggest that you can save hard or firm foods with only minor mold problems, but most soft or liquid foods showing mold should be discarded. |
| *CheeseSome cheese is made with mold, but you may spot mold that shouldn't be there. In hard block cheeses, cut off at least an inch around and below the mold spot. Keep your knife or instrument out of the mold itself. After the"surgery", re-cover the cheese in fresh wrap. Don't try to save individual cheese slices, soft cheese, cottage cheese, cream, sour cream or yogurt. |
| *Hard salamis & country ham You can cut a small spot of mold off hard salamis using the cheese rule. Again, keep the knife out of the mold.
You can cut mold off dry-cured country ham if it's only a small, surface spot. You can cut away a small mold spot on the inside of country ham too, following the cheese rule. But if the ham is covered with brown or black mold, discard it. Discard moldy bacon, hotdogs, sliced lunch meats, meat pies or opened canned ham. |
| *Snoked turkey Cut a small mold spot off the surface using the cheese rule. Throw moldy cooked chicken out. |
| *Jams, jellies, syrups Discard such items showing any mold growth. Experts now feel mold toxins (if present) can spread through this soft material quite rapidly. |
| *Fruits and vegetables Cut out small mold spots from the surface of firm fruits and vegetables (cabbage, bell peppers, carrots), but discard soft vegetables (tomatoes, cucumbers, lettuce) showing mold. |
| *Potatoes Note any damaged areas on the surface and cut away tissue that is blackened or discolored. It's best to do this before cooking, but you can also do it after cooking and before eating. |
| Throw away on sight Discard visibly moldy bread, cake, buns, pastry, corn-on-the-cob, stored nuts, flour, whole grains, rice, dried peas and beans and peanut butter.
Carefully check any food you've had a while that the store or seller sold as"natural". Processed without preservatives, they are prone to mold growth. |
| Consumers are not facting the"mold" problem alone there is continual federal monitoring of crops at high risk for toxic mold growth. These crops include grains, nuts, celery, apples and tomatoes. Government works with farmers and the food industry to ensure that these foods and products made from them are safe when they arrive at the grocery. Your responsibility begins when you take food home.
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Adapted from Parmley, M.A.. 1993Winter. What to do about mold - A Consumer Handbook. Food News 9[4]:8. [Available for public use]
Perry, C. (LA Times-Washington Post Service). 2000,January 25. Molds play key role in Asian cuisine. Oregonian. FoodDay FD9.
| Verbatium Copy: Europe happily cultures cheeses (and to a lesser degree sausages) with mold, but otherwise it's rather opposed to seeing furry little spots grow on its food. East Asia is not so squeamish.
Take sufu, sometimes called Chinese cheese, which is tofu inoculated with the prettily named Actinomucor elegans and fermented three to seven days, then aged in a mixture of brine and wine 40 to 60 days.
Another product cultured with A. elegans is mentauza, the solids from soybean milk pressed into cakes and fermented 10 to 15 days. Chifan is basically a sort of sufu fermented with a different mold for a week and then aged in wine for a year.
Fermented minchin is wheat gluten rotted with a whole bunch of molds (Paecilomyces, Aspergillus, Cladosporum, Fusarium, Syn cephalostrum, Penicillium and Triochethecium) for a coupld of weeks, then salted and aged two weeks longer and finally cut into strips and used as a condiment.
Ang-khak, also known as benikoji or Chinese red rice, is used as a food coloring for fish, cheese and wine in China and the Philippines. It's made by allowing Monascus purpureus, a pigment-producing fungus, to grow on rice kernels for three months. On Taiwan, it colors a reddish local rice drink named anchu.
The Indonesian product ontjom has its own special mold, Neurospora sitophila. It comes in cakes like the soy product tempeh, but it's made from the"press cake" left over after oil is extracted from peanuts. Fried ontjom is said to taste like mincemeat. To serve, sprinkle with sugar and salt and cover with ginger sauce. |
Updated: Sunday, March 30, 2008. |