Modern methods for obtaining purified anthocyanin extracts

Abstract

Anthocyanins are organic compounds belonging to the group of polyphenols, widely distributed in natural berries, fruits and vegetables. An increasing number of studies confirm that anthocyanins have various biological activities. These include activities such as antioxidant, immunomodulatory, antitumor, hepatoprotective and anti-inflammatory activities. Therefore, anthocyanins are widely used in the medical (pharmaceutical) and food industries. Extraction and purification of anthocyanins from natural sources is the initial challenge. To better understand the nature and mechanism of action of anthocyanins, further research is being carried out, the results of which are subject to systematization and careful analysis. This work examined various methods for extracting anthocyanins from medicinal plant materials. The advantages and disadvantages of various extraction methods were identified, and a comparative analysis of traditional and modern methods of anthocyanin extraction was carried out. Recent research results in the field of anthocyanin extraction and purification were also reviewed, and the effects of different extraction and purification methods on anthocyanin recovery and purity were analyzed and compared. This review can provide a scientific basis for the use of purified anthocyanins in the pharmaceutical (drug preparation, reference materials) and food (natural dyes) industries.