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.
Definition: Octane rating is a fuel's ability to resist detonation and is classified by three main rating types: All tests use blends of iso-octane and heptane as the reference fuels.efinition: Octane rating is a fuel's ability to resist detonation and is classified by three main rating types: All tests use blends of iso-octane and heptane as the reference fuels.