Anthocyanins, which are natural pigments, accountable for the deep blue, red, and purple hues of many fruits vegetables. These a part flavonoid family, have garnered significant attention due to their potential health benefits such as antioxidant, anti-inflammatory, anticancer properties. The biological activity bioavailability anthocyanins determined by chemical structure stability. Anthocyani...

Let us consider higher dimensional canards in a sow-fast system R2+2 with bifurcation parameter. Then, the slow manifold sometimes shows various aspects due to bifurcation. Introducing key notion “symmetry” slow-fast system, it becomes clear when pseudo singular point obtains structural stability or not. It should be treated general case. will also given about sufficient conditions for existenc...