(-)-Hydroxycitric acid (HCA) can inhibit fat synthesis and reduces food intake, the primary mechanism of action of HCA appears to be related to its ability to act as a competitive inhibitor of the enzyme ATP-citrate lyase, which catalyzes the conversion of citrate and coenzyme A to oxaloacetate and acetyl coenzyme A (acetyl-CoA), primary building blocks of fatty acid and cholesterol synthesis.
Mangostanol is an acetylcholinesterase (AChE) selective inhibitor.Mangostanol has anti-cancer activity, it shows significant activities against the CEM-SS cell line, with IC50 values of 9.6 microg/ml.
GB 2a shows antioxidant and anti-inflammatory effects, it can prevent the carrageenan-induced paw oedema. GB 2a biflavonoid can promote inhibition on tyrosinase activity and reduced melanin biosynthesis in B16F10 cells, which suggests great potential for