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.
The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane.
Octane rating of fuel is the quality rating the resistance of a fuel to self combust at, IE dieseling. There are three octane rating systems.The first two rate the quality of the fuel at different temperatures and the third, the one we use in the United States of America, uses the average of the two.ctane rating is the resistance to burning. For example (not real number) a gas with an octane rating of 50 will burn at 100 degrees Fahrenheit whereas a gas with an octane ra â¦ ting of 100 will burn at 200 degrees Fahrenheit. Higher the octane number the harder it is to burn.