Typically, flavonoids with catechol group in the B-ring acted as an o -diphenolic substrate for the oxidation by both the oxy -and met -forms tyrosinase enzyme 104 and predicted with optimal orientation for Quintox mechanism 105 , a geometry required for inactivation of tyrosinase, as reported earlier for green tea catechins 66
Octane, in contrast, remains in the liquid phase all the way up to 128 o C, due to the increased influence of attractive London forces, made possible by the larger surface area of the individual molecules
Histamine intolerance is often used as a catch-all explanation for flushing, congestion, headaches, hives, digestive symptoms, insomnia or anxiety
This typical change of A 670 / A 520 has been assigned to AuNP aggregation [11, 19]