By measuring the R630/580 ratio, low-quality DFD and RSE forms of this substance can be detected since its transmittance depends on pH. This anisotropic substance must be cored specifically perpendicularly before analysis in a Warner-Bratzer machine. The water-holding capacity of this substance is minimized at its ultimate pH, which is typically around 5.5. In a condition colloquially named for this substance, alpha-gal reacts with IgE (15[1])due to Lone Star tick bites. Isopeptide bonds are formed in this substance in a common application of (*) transglutaminase, which is named for acting as a (-5[1])"glue" for this substance. (10[1])This substance is treated with carbon monoxide to maintain its color (10[1])by reacting with (10[1])myoglobin. A specific type of this substance is the vector by which variant Creutzfeldt-Jakob disease is transmitted to humans. (-5[1])For 10 points, name this animal-derived substance imitated by leghemoglobin or soy. (10[1]0[3])■END■