1. Introduction
The growing demand for natural products leads to constant developments of natural extracts. In the field of food preservation, compounds such as tocopherols and flavonoids are broadly used as antioxidants [1]. Natural antioxidants are extracted from plants, more specifically from herbs or spices, where numerous compounds have been identified as potential antioxidants such as vitamins, lipids, and predominantly polyphenols [1]. Due to its polyphenol composition, rosemary can be considered as a reference matrix for the production of natural antioxidant extracts [1] and [2].