JorgeLobo

Difficult to compare costs in a quantitative sense when the determinants are subjective. If you were to define "eco-friendly" and "bad for the environment" in real terms, your question might be better explored .

If you have TSA, why bother with the litmus milk?

Some protists produce polysaccharide cell walls such as Phytophthora (here cellulose). There have been reports of chitin in cyst walls of Giardia and Entamoeba but not as major component and perhaps more assemblages of n-acetyl glucosamine more than chitin in a fungal structural context.

A disinfectant kills vegetative cells of pathogenic microbes on inanimate surfaces. Compare to a sterilant that kills vegetative cells and spores of spore forming bacteria on inanimate surfaces and an antiseptic that kills bacteria on animate surfaces.