Hello everyone, for the past few days I have been researching on chemicals and biochemicals fungicide/bactericide that is ant safe. The goal is to keep test tubes clean of toxic molds and bacteria. I will be keeping this thread updated since I just order some potassium sorbate from amazon and I have glutaraldehyde lying around my house.
Methyl parabin: Widely use as a pesticide and a preservative. Its benefits is that it works at any ph level at a very small concentration, the downfall is that Methyl parabin is toxic to insect at higher concentration (http://insectdiets.c...7/Cohen-122.pdf). Interestingly Methyl parabin is one of the chemical secreted by honey bees, and probably use by honey bees as a disinfectant. However I have yet to see any studies showing what it really does. Because of its relation with honey bees, it might not effect ants like it effects butterfly larvae in the study above. Methyl Parabin is also a component of byformica color formula food, use as a preservative.
Sorbates: Commonly sold as Potassium sorbate, it is an acidic fungicude/bactericide. According to various studies, including the one above, sorbates are the least toxic to insect. However, its downfall is that it only works when the ph is around 5.5. Potassium Sorbate is the salt of Sorbic acid.
Propanoic acid: An acid that has properties intermediate between acetic acid and formic acid. Commonly use in preservative mixture along with potassium sorbate. The benefit is that it's similar to formic acid, which might be non toxic to ants at small doses.
Aldehyde: Aldehyde are a group of chemicals that are strong preservative and disinfectant. The most common and well known aldehyde is formaldehyde, although glutaraldehyde is also common. Some plants are able to fixate Aldehyde as a carbon source, I have using glytaraldehyde as a algeacide and a plant carbon source in my fish tanks for years with Little ill effect to the shrimp and fish that live in there. Interestingly Formaldehyde is very similar in chemical composition and structure to formic acid.
Serenade: genetically engineer bacillus subtilis that produce fungicide and bactericide chemicals. bacillus subtilis is a common soil dwelling bacteria and is a component of many animals gut flora, including insects. According to their website its 100% non toxic to bees (http://serenadegarden.com/faqs/). Out of all the fungicide/bactericide listed above, this one seems to be the most promising. The downfall is that i can not use it as ant food preservative since the bacteria will consume the food itself.
Edit:
Thiocarbamate: A group of antifungal drug that kill fungi by blocking the transfer of esterol in fungi. Google search show almost no toxicity to honey bees.
Edited by Anhzor, August 13 2014 - 6:42 PM.