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.
Consumers might think that this claim turns 89 octane gas into 97 octane, but in fact the âpointsâ are usually expressed in 10ths, so the octane booster is really capable of increasing the octane up to 89.8 octane, and often much less in practical conditions, which will not generate much of an improvement.