Blog Archive - July 2007

Chili Sauce Contaminated with C. botulinum

July 19, 2007

Nanobug in the News Today

Announcement was made today that several brands of commercial hot dog chili sauce has been found to be contaminated with Clostridium botulinum.  Four people have been infected and hospitalized - 2 children in Texas and 2 adults in Indiana - but no deaths reported. Yea! 

This is an unusual source of an outbreak of botulism - Clostridium is usually an issue with home-canned foods especially green beans or other low-acid foods.  The problem is that C. botulinum has spores that must be completely killed in the canning process or they will revive the organism and grow in the alkaline environment of the food and produce a powerful neurotoxin. (The spores and the toxin can be destroyed by boiling and essentially sterilizing the food).  Now it would seem that chili sauce would be an unlikely food to incubate Clostridium botulinum but it seems to be so.  The American Public Health Association states that tomatoes - once thought to be too acidic to incubate C. botulinum - are no longer considered a low-risk food for incubating botulism.   Commercial foods are heat sterilized rather than just pasteurized to assure that the dangerous spores are killed.  Obviously something went wrong at the food processing plant.  

Check out the brand names and numbers provided in the Associated Press article and heed the advice to discard the cans and do not open them (cans with the contamination are usually bulging due to the build up of gas inside).  The botulism toxin is so potent that you could have grave consequences if you opened the can and the contents sprayed in your face and eyes.  This nanobug is also one on the list for potential terrorism agent because of the potent toxin it produces. 

It is kind of ironic - late Summer is when we are usually reminding people to take care with home canning their green beans.  I wonder if housewives are still canning these days.  Or is freezing more convenient and therefore the preservation of choice?  Or is everyone just eating things fresh and buying their vegetables in the store after their garden finishes producing for the season? 

In the Summer there is also the threat of infant botulism when infants are given unprocessed or raw honey.

C. botuliumAnd then I also wonder about the wisdom of Botox - a neurotoxin used to paralyze the facial muscles so wrinkles won't show.  Granted, it is minute doses, but it just seems wrong to me - I think we should avoid neurotoxins rather than inviting them into our faces to try to hide the signs of our aging.  My "signature" nanobug, which I have on my business card and on my VW Beetle, is Clostridium botulinum.  I chose it because she is a classy anaerobic spore-former.  Her gas mask is stylish and complements her outfit! Please don't think that my choice is any kind of an endorsement of techniques to inject neurotoxins into our aging faces. 

 

 

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Beware of Nanobugs on Summer Melons

July 12, 2007

It was an easy decision to stop at the pick-up truck parked on the side of the road late Monday morning.  I had "shopped" at this portable farmer's market before the 4th of July and bought corn on the cob, tomatoes and a watermelon.  Everything was delicious.  Hannah (my elder daughter and product manager for Nanoubgs, inc) and I selected 6 gorgeous tomatoes, a cucumber and a cantaloupe the size of a soccer ball for our lunch. At home I began washing the produce with dish soap and warm water which made Hannah chuckle - thinking I had gone off the deep end with infection prevention and avoidance of nanobugs.  In defense of this important step in preparation I explained to her: smooth fresh tomatoes, peppers, cucumbers and even watermelons can be easily cleaned to reduce potential contamination with E. coli O157:H7.  However, cantaloupe and honeydew melons have a rough surface and more hiding places for the Nanobugs, so a soft vegetable brush is appropriate for washing even if there is no visible dirt on them.  The black dirt spot on our beautiful melon came off easily with a little scrubbing.  I rinsed it well with tap water and patted it dry with paper towels.  Now I was ready to slice and dice and fix it up nice!

I'm sure you are thinking this is a bit far-fetched - "we never went to all this trouble and and we have never gotten sick".  But times have changed and if you understand the field to table process you will reconsider.  

Contamination of fruits and vegetables in the field usually comes from the "run-off" from cattle feedlots and pastures.  E. coli O157:H7 in the manure is dispersed into the growing fields and onto the produce.  My farmer/gardener hand picks all of his melons himself and takes them directly to market.  But when large farms pick truckloads of melons - they are often plunged into contaminated water to cool them down and slow the ripening process.   The infection risk with melons begins when you slice through the contaminated rind - transporting the nanobugs into the flesh of the fruit.  If melons are cut and  served on platters with the rind still on, the contaminated rind lays on top of the flesh of other pieces and the multiplication of the nanobugs begins.  And room temperature on a hot summer day can increase the multiplication rate.  Many local health departments encourage (or demand) that melons be rolled in a weak bleach solution before slicing - especially if the rind remains on the fruit with serving.

I certainly don't want to spoil your enjoyment of a nice ripe cantaloupe this summer with all this talk of risks and realities.  But I do hope you will "remember the nanobugs" when you prepare and eat those melons.  I prefer to use a melon baller and create little melon balls for snacks.  My grandchildren love to eat them with toothpicks. 

I think I may have discovered a new, simple and tasty recipe for cantaloupe - sprinkle organic cinnamon over cooled melon balls!  Have you ever heard of such a thing?  It passed the test with my family - delighting 3 out of 4 of us on Monday afternoon.  The one undelighted person was Maisy (age 6) who wouldn't try it, claiming she doesn't like "pepper".   Her portion was quickly ingested by her smiling older brother.Cool

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"I am a student teacher in Lincoln, NE and find these nanobugs intriguing! I introduced them to my fifth graders and they had a ball learning about the different viruses and such. The trading cards are also information for me and my roommates. This is such a neat website and will definitely pass this along! "

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