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.
If you want to understand the important differences between these gasoline choices, read on. Octane is not a measurement of power. Octane ratings are a measurement of the fuel's ability to resist engine knocking or pinging. The knock results from uneven burning of the compressed fuel-air mixture.