Recent trends in extraction techniques of anthocyanins from plant materials

Anthocyanins are a class of flavonoids abundantly found in plant cell fluids. Anthocyanins are responsible for various types of colours such as red, purple, blue, etc. in plants and also having health promoting properties. Various conventional and emerging techniques have been exploited for the extraction of anthocyanins from plant materials. Each extraction method has its own speciality and has significant effect on yield, purity, stability and composition of anthocyanins. The anthocyanin chemistry reveals several issues with regard to the extraction procedures. The high temperatures while promoting the extraction yield may promote the degradation of this compound. The review provides the recent insights on the extraction techniques exploited for anthocyanins from different plant materials.