The α-Amylase and α-Glucosidase Inhibition Capacity of Grape Pomace: A Review.

The concept of functional foods is gaining more importance due to its role in maintaining a healthy status and preventing some metabolic diseases. The control of diabetes, in particular type-2 (T2DM), could be considered a big challenge since it involves other factors such as eating habits. From the pharmacological point of view, inhibiting digestive enzymes, such as α-amylase and α-glucosidase, is one of the mechanisms mainly used by synthetic drugs to control this disease; however, several side effects are described.

Monitoring the antioxidant activity of an eco-friendly processed grape pomace along the storage.

The aims of this research are to compare and to monitor two conditions for preserving the total phenolic content (TPC) and the antioxidant activity (AOA) of grape pomace (GP) processed as powder and its corresponding extract at room and freezing temperature, respectively. The highest TPC and AOA were obtained in the GP extracted in a ratio 1:10 (w/v) with ethanol at 50% for 45 min at 50 °C. After 9 months of room temperature (RT) storage, the GP powder obtained a significantly higher AOA than the initial condition and the extract frozen-stored the same time.

Study of the phenolic profile of a grape pomace powder and its impact on delaying corn oil oxidation.

The grape pomace, the main by-product from the winemaking industry, contains many bioactive substances that must be valorized. The aim of this study was to assess the total phenolic content (TPC), phenolics profile by using HPLC and the antioxidant activity (AOA). The results showed a TPC of 38.