For the most curcumin, be sure to use turmeric rather curry powderâa study analyzing curcumin content in 28 spice products described as turmeric or curry powders found that pure turmeric powder had the highest concentration of curcumin, averaging 3.14% by weight.
There is another type of octane rating, called Motor Octane Number (MON), or the aviation lean octane rating, which is a better measure of how the fuel behaves when under load as it is done at 900 rpm instead of the 600 rpm of the RON<ref>http://www.texacoursa.com/glossary/r.html</ref><ref>http://www.texacoursa.com/glossary/m.html</ref>.
Octane is Knock Resistance. And if you're using the fuel recommended by the automaker, that knock sensor rarely has anything to detect. Pure and simple, a gasoline's octane rating is a measure of its resistance to knock as compared to a particular pair of hydrocarbons. Isooctane, an especially knock-resistant variety, is 100 on the octane scale; at the other extreme, n-Heptane is 0.