The answer depends in part on your application. Also, 'best' in what sense?
Formaldehyde is a very effective preservative for biological specimens, but is not suitable as a food preservative if you intend to eat the food, as it is quite toxic.
Copper compounds are excellent wood preservatives, but are also quite toxic.
If you are looking for a non toxic food preservative, try salt or vinegar!
Vinegar would be the best preservative. You can also use a little bit of salt or even lemon as preservative. Sugar syrup can also be used as a preservative if you want your sauce to be sweet.
yes
iodine
It is difficult to say "the best"; but salt is a good preservative.
aseptic water discovered by a Japanese man.
no it's not a preservative
The answer depends in part on your application. Also, 'best' in what sense? Formaldehyde is a very effective preservative for biological specimens, but is not suitable as a food preservative if you intend to eat the food, as it is quite toxic. Copper compounds are excellent wood preservatives, but are also quite toxic. If you are looking for a non toxic food preservative, try salt or vinegar!
Vitamin E or Grapefruit Oil
Preservative is a noun.
Salt is the best preservative among vinegar, salt, garlic, and sugar as it draws out moisture and inhibits the growth of bacteria, yeast, and mold. Sugar can also be an effective preservative by creating an environment where microorganisms cannot grow, but salt is more commonly used for preserving foods.
Preservative 220 is sulphur dioxide
Yes it is. lemon juice is a natural preservative