Antioxidant properties of polyphenol-rich cocoa products industrially processed

Polyphenols in cocoa and cocoa products: is there a link between antioxidant properties and health?

Cocoa and cocoa products have received much attention due to their significant polyphenol contents. Cocoa and cocoa products, namely cocoa liquor, cocoa powder and chocolates (milk and dark chocolates) may present varied polyphenol contents and possess different levels of antioxidant potentials. For the past ten years, at least 28 human studies have been conducted utilizing one of these cocoa p...

Polyphenol extracts from low quality cocoa beans: antioxidant, antibacterial and food colouring properties

Good quality cocoa beans are well studied and known as rich source of natural polyphenols. On the contrary, little research has been done regarding polyphenol extracts (PE) from low quality cocoa beans i.e. partially fermented dry cocoa beans (PFDCB) and unfermented dry cocoa beans (UFDCB). The following research was carried out to study the antioxidant, antibacterial, and food colouring proper...

Studies on antioxidant properties of polyphenol-rich extract from berries of Aronia melanocarpa in blood platelets.

The antioxidant properties of extract from berries of Aronia melanocarpa (chokeberry) containing: anthocyanidines, phenolic acids and quercetine glycosides on oxidative/nitrative stress induced by peroxynitrite (ONOO(-), a powerful physiological oxidant, nitrating species and inflammatory mediator) in human blood platelets were studied in vitro. The extract from A. melanocarpa (5 - 50 microg/mL...

Occurrence and Antioxidant Activity of C1 Degradation Products in Cocoa

Procyanidin C1 is by far the main flavan-3-ol trimer in cocoa. Like other flavan-3-ols, however, it suffers a lot during heat treatments such as roasting. RP-HPLCHRMS/MS(ESI(-))analysis applied to an aqueous model medium containing commercial procyanidin C1 proved that epimerization is the main reaction involved in its degradation (accounting for 62% of degradation products). In addition to dep...

Antioxidant -Rich Natural Products and Diabetes Mellitus