Green is the most common type of leaf, but widely varied in effects, Green leaf can be oxidized creating a scenario allowing for higher concentrations (or conversion) of 7ohm, or unoxidized with high levels of Mitragynine. Supergreen Maeng Da is one such green strain that seems to have maximum amount of 7ohm conversion, ie it's Mitragynine level is conducive (perhaps optimal) in converting it in the body.
A study showed that maximum levels Of Mitragynine were found in fresh leaf, then leaf dried in the shade, then leaf dried by the sun, then leaf dried in the oven in that order. Tentative studies show no significant trends in the levels of 7ohm across all drying methods. But, because we do know that high levels of 7ohm do exist, the assumption is that some combination of light and heat yields a level of conversion that researchers once surmised was due to adulteration.
What seems to be happening is that in most cases::a small amount of Mitragynine is being converted to 7ohm in the leaf during curing by the sun in the plant. However, the majority of the 7ohm is coming from the conversion taking place inside the body using the cytochrome enzyme CYP3A4. It is estimated to be around 6% of this Mitragynine is getting converted to 7ohm.
Shade dried green leaf has the highest concentration of Mitragynine and will most likely not have much 7ohm effect, but be most stimulating. A precarious balance seems to exist between 7ohm conversion and 7ohm blocking by Mitragynine, as it is a cyp3a4 inhibitor, which prevents conversion to 7ohm.
